This abstract is about the usage of foundry sand instead of the fine aggregates, bagasse ash instead of cement. As cement also has some disadvantages with it like it has low tensile strength, its ability to resist deformation is very low, it is easily brittle. Cement is also considered to be one of the major sources which causes air pollution releasing a large amount of carbon in the atmosphere. So to replace cement such materials can be used as an alternative. Foundry sand is a natural fine aggregate which is obtained from the industrial byproducts. It was studied that by blending 30% of foundry sand with cement there was an increase in splitting tensile strength, compressive strength, and flexural strength as compared to the conventional concrete. Addition of this sand doesn’t affect its properties related to strength. Bagasse ash is a pulpy product obtained from sugarcane i.e., after the extraction of juice from the cane the squeezed parts are called molasses. In this research, Bagasse was used in the percentage of 30 % and 20% with the partial replacement of cement. Cubes were made by using the mortar which was prepared using the replacement materials. The mortar specimens were tested in their fresh and hardened stage of mortar to study the strength and durability of materials proportion in mortar.This abstract is about the usage of foundry sand instead of the fine aggregates, bagasse ash instead of cement. As cement also has some disadvantages with it like it has low tensile strength, its ability to resist deformation is very low, it is easily brittle. Cement is also considered to be one of the major sources which causes air pollution releasing a large amount of carbon in the atmosphere. So to replace cement such materials can be used as an alternative. Foundry sand is a natural fine aggregate which is obtained from the industrial byproducts. It was studied that by blending 30% of foundry sand with cement there was an increase in splitting tensile strength, compressive strength, and flexural strength as compared to the conventional concrete. Addition of this sand doesn’t affect its properties related to strength. Bagasse ash is a pulpy product obtained from sugarcane i.e., after the extraction of juice from the cane the squeezed parts are called molasses. In this research, Bagasse was used in the ...
{"title":"A study on replacement of fine aggregates and cement","authors":"S. Bharathi, R. Monisha, Mounishica Navarathinam","doi":"10.1063/1.5117918","DOIUrl":"https://doi.org/10.1063/1.5117918","url":null,"abstract":"This abstract is about the usage of foundry sand instead of the fine aggregates, bagasse ash instead of cement. As cement also has some disadvantages with it like it has low tensile strength, its ability to resist deformation is very low, it is easily brittle. Cement is also considered to be one of the major sources which causes air pollution releasing a large amount of carbon in the atmosphere. So to replace cement such materials can be used as an alternative. Foundry sand is a natural fine aggregate which is obtained from the industrial byproducts. It was studied that by blending 30% of foundry sand with cement there was an increase in splitting tensile strength, compressive strength, and flexural strength as compared to the conventional concrete. Addition of this sand doesn’t affect its properties related to strength. Bagasse ash is a pulpy product obtained from sugarcane i.e., after the extraction of juice from the cane the squeezed parts are called molasses. In this research, Bagasse was used in the percentage of 30 % and 20% with the partial replacement of cement. Cubes were made by using the mortar which was prepared using the replacement materials. The mortar specimens were tested in their fresh and hardened stage of mortar to study the strength and durability of materials proportion in mortar.This abstract is about the usage of foundry sand instead of the fine aggregates, bagasse ash instead of cement. As cement also has some disadvantages with it like it has low tensile strength, its ability to resist deformation is very low, it is easily brittle. Cement is also considered to be one of the major sources which causes air pollution releasing a large amount of carbon in the atmosphere. So to replace cement such materials can be used as an alternative. Foundry sand is a natural fine aggregate which is obtained from the industrial byproducts. It was studied that by blending 30% of foundry sand with cement there was an increase in splitting tensile strength, compressive strength, and flexural strength as compared to the conventional concrete. Addition of this sand doesn’t affect its properties related to strength. Bagasse ash is a pulpy product obtained from sugarcane i.e., after the extraction of juice from the cane the squeezed parts are called molasses. In this research, Bagasse was used in the ...","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75434904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hospital related risk factors viewed as extreme difficulties signify critical risk to a hospitalized patient’s safety. Risk factors related to an orthopedic hospital are high in contrast to other hospitals. Here, we aim to level the key risk factors related to patients undergoing surgery. It will be helpful to hospital managers to enhance tactics to manage the efficiency of the hospital’s surgical process. Dissimilar factors related to patients undergoing surgery are recognized based on a literature survey as well as deliberations with experts in the hospital. We build a replica of risk factors influencing patient’s undergoing surgery using the Interpretive Structural Modeling (ISM) method. This method aids to determine the priority of the recognized risk factors. Also, a case empirical study in an orthopedic hospital in India is exhibited to show the proposed method and to reveal its consequences. Research discoveries signify that patient-clinical circumstances, surgical treatment time and use of imbeds get top priority in improving the efficiency of the hospital’s surgical process. The replica proposed is deliberated as being extremely valuable for hospital managers to realize and discriminate against critical risk factors for systematic judgments to improve the effectiveness of the hospital surgical processes.Hospital related risk factors viewed as extreme difficulties signify critical risk to a hospitalized patient’s safety. Risk factors related to an orthopedic hospital are high in contrast to other hospitals. Here, we aim to level the key risk factors related to patients undergoing surgery. It will be helpful to hospital managers to enhance tactics to manage the efficiency of the hospital’s surgical process. Dissimilar factors related to patients undergoing surgery are recognized based on a literature survey as well as deliberations with experts in the hospital. We build a replica of risk factors influencing patient’s undergoing surgery using the Interpretive Structural Modeling (ISM) method. This method aids to determine the priority of the recognized risk factors. Also, a case empirical study in an orthopedic hospital in India is exhibited to show the proposed method and to reveal its consequences. Research discoveries signify that patient-clinical circumstances, surgical treatment time and use of imbeds ...
{"title":"Analysis of risk factors related to patients in healthcare industry using ISM method","authors":"R. Bhalaji, S. Bathrinath, S. Saravanasankar","doi":"10.1063/1.5117975","DOIUrl":"https://doi.org/10.1063/1.5117975","url":null,"abstract":"Hospital related risk factors viewed as extreme difficulties signify critical risk to a hospitalized patient’s safety. Risk factors related to an orthopedic hospital are high in contrast to other hospitals. Here, we aim to level the key risk factors related to patients undergoing surgery. It will be helpful to hospital managers to enhance tactics to manage the efficiency of the hospital’s surgical process. Dissimilar factors related to patients undergoing surgery are recognized based on a literature survey as well as deliberations with experts in the hospital. We build a replica of risk factors influencing patient’s undergoing surgery using the Interpretive Structural Modeling (ISM) method. This method aids to determine the priority of the recognized risk factors. Also, a case empirical study in an orthopedic hospital in India is exhibited to show the proposed method and to reveal its consequences. Research discoveries signify that patient-clinical circumstances, surgical treatment time and use of imbeds get top priority in improving the efficiency of the hospital’s surgical process. The replica proposed is deliberated as being extremely valuable for hospital managers to realize and discriminate against critical risk factors for systematic judgments to improve the effectiveness of the hospital surgical processes.Hospital related risk factors viewed as extreme difficulties signify critical risk to a hospitalized patient’s safety. Risk factors related to an orthopedic hospital are high in contrast to other hospitals. Here, we aim to level the key risk factors related to patients undergoing surgery. It will be helpful to hospital managers to enhance tactics to manage the efficiency of the hospital’s surgical process. Dissimilar factors related to patients undergoing surgery are recognized based on a literature survey as well as deliberations with experts in the hospital. We build a replica of risk factors influencing patient’s undergoing surgery using the Interpretive Structural Modeling (ISM) method. This method aids to determine the priority of the recognized risk factors. Also, a case empirical study in an orthopedic hospital in India is exhibited to show the proposed method and to reveal its consequences. Research discoveries signify that patient-clinical circumstances, surgical treatment time and use of imbeds ...","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77540411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nowadays there is a demand for river sand for construction. To avoid these conflicts, we are up to a solution of using sea sand along with granite granules as fine aggregate in concrete. Granite granules are the waste product obtained while cutting granite which is cost effective and sea sand is abundantly available in coastal areas when compared to river sand. This full replacement can be used in Plain Cement Concrete (PCC). Concrete cube is cast to test the compression strength for M5 grade concrete (since it is for PPC). As a result, strength is obtained related to cube cast using river sand in concrete. Using this result, we have figured out that granite granules can also be a better replacement with sea sand. Further studies are going on to use it in Reinforced cement concrete (RCC) by refining chloride from sea sand or by adding admixtures with concrete to prevent corrosion of reinforcement.Nowadays there is a demand for river sand for construction. To avoid these conflicts, we are up to a solution of using sea sand along with granite granules as fine aggregate in concrete. Granite granules are the waste product obtained while cutting granite which is cost effective and sea sand is abundantly available in coastal areas when compared to river sand. This full replacement can be used in Plain Cement Concrete (PCC). Concrete cube is cast to test the compression strength for M5 grade concrete (since it is for PPC). As a result, strength is obtained related to cube cast using river sand in concrete. Using this result, we have figured out that granite granules can also be a better replacement with sea sand. Further studies are going on to use it in Reinforced cement concrete (RCC) by refining chloride from sea sand or by adding admixtures with concrete to prevent corrosion of reinforcement.
{"title":"Replacement of river sand with sea sand and granite granules","authors":"V. Gnanasundar, S. Suvetha, S. Preethy","doi":"10.1063/1.5117923","DOIUrl":"https://doi.org/10.1063/1.5117923","url":null,"abstract":"Nowadays there is a demand for river sand for construction. To avoid these conflicts, we are up to a solution of using sea sand along with granite granules as fine aggregate in concrete. Granite granules are the waste product obtained while cutting granite which is cost effective and sea sand is abundantly available in coastal areas when compared to river sand. This full replacement can be used in Plain Cement Concrete (PCC). Concrete cube is cast to test the compression strength for M5 grade concrete (since it is for PPC). As a result, strength is obtained related to cube cast using river sand in concrete. Using this result, we have figured out that granite granules can also be a better replacement with sea sand. Further studies are going on to use it in Reinforced cement concrete (RCC) by refining chloride from sea sand or by adding admixtures with concrete to prevent corrosion of reinforcement.Nowadays there is a demand for river sand for construction. To avoid these conflicts, we are up to a solution of using sea sand along with granite granules as fine aggregate in concrete. Granite granules are the waste product obtained while cutting granite which is cost effective and sea sand is abundantly available in coastal areas when compared to river sand. This full replacement can be used in Plain Cement Concrete (PCC). Concrete cube is cast to test the compression strength for M5 grade concrete (since it is for PPC). As a result, strength is obtained related to cube cast using river sand in concrete. Using this result, we have figured out that granite granules can also be a better replacement with sea sand. Further studies are going on to use it in Reinforced cement concrete (RCC) by refining chloride from sea sand or by adding admixtures with concrete to prevent corrosion of reinforcement.","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84349119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Prasath, P. Amuthakkannan, V. Manikandan, R. Jegadeesan, M. Selwin
The paper presents the novel topological approach in optimizing the mechanical properties of the basalt/flax hybrid composite. Hybrid composite were fabricated at 10 different combinations of basalt and flax fiber weight percentage in a polyester matrix fabricated with compression moulding technique. Mechanical strength such as tensile, flexural and impact strength were found as per ASTM standard. Hybrid composite with 40% basalt/10% flax/50% polyester has maximum tensile test of 78.67N/mm2 and maximum flexural strength (504.85N/mm2) was observed in hybrid composite with 35% basalt/15% flax/50% polyester, the maximum impact strength was noted on 5% basalt/45% flax/50% (16.60J/m). Optimization of mechanical strength using novel topological method shows the optimum fiber weight percentage influence in mechanical performance. From the optimization result it is found that the hybrid composite with 35% basalt/15% flax/50% polyester has superior mechanical property and flax fiber was found to have maximum influence on mechanical property of the hybrid composites.The paper presents the novel topological approach in optimizing the mechanical properties of the basalt/flax hybrid composite. Hybrid composite were fabricated at 10 different combinations of basalt and flax fiber weight percentage in a polyester matrix fabricated with compression moulding technique. Mechanical strength such as tensile, flexural and impact strength were found as per ASTM standard. Hybrid composite with 40% basalt/10% flax/50% polyester has maximum tensile test of 78.67N/mm2 and maximum flexural strength (504.85N/mm2) was observed in hybrid composite with 35% basalt/15% flax/50% polyester, the maximum impact strength was noted on 5% basalt/45% flax/50% (16.60J/m). Optimization of mechanical strength using novel topological method shows the optimum fiber weight percentage influence in mechanical performance. From the optimization result it is found that the hybrid composite with 35% basalt/15% flax/50% polyester has superior mechanical property and flax fiber was found to have maximum influ...
{"title":"Novel topological approach in mechanical properties of basalt/flax hybrid composites","authors":"K. Prasath, P. Amuthakkannan, V. Manikandan, R. Jegadeesan, M. Selwin","doi":"10.1063/1.5117913","DOIUrl":"https://doi.org/10.1063/1.5117913","url":null,"abstract":"The paper presents the novel topological approach in optimizing the mechanical properties of the basalt/flax hybrid composite. Hybrid composite were fabricated at 10 different combinations of basalt and flax fiber weight percentage in a polyester matrix fabricated with compression moulding technique. Mechanical strength such as tensile, flexural and impact strength were found as per ASTM standard. Hybrid composite with 40% basalt/10% flax/50% polyester has maximum tensile test of 78.67N/mm2 and maximum flexural strength (504.85N/mm2) was observed in hybrid composite with 35% basalt/15% flax/50% polyester, the maximum impact strength was noted on 5% basalt/45% flax/50% (16.60J/m). Optimization of mechanical strength using novel topological method shows the optimum fiber weight percentage influence in mechanical performance. From the optimization result it is found that the hybrid composite with 35% basalt/15% flax/50% polyester has superior mechanical property and flax fiber was found to have maximum influence on mechanical property of the hybrid composites.The paper presents the novel topological approach in optimizing the mechanical properties of the basalt/flax hybrid composite. Hybrid composite were fabricated at 10 different combinations of basalt and flax fiber weight percentage in a polyester matrix fabricated with compression moulding technique. Mechanical strength such as tensile, flexural and impact strength were found as per ASTM standard. Hybrid composite with 40% basalt/10% flax/50% polyester has maximum tensile test of 78.67N/mm2 and maximum flexural strength (504.85N/mm2) was observed in hybrid composite with 35% basalt/15% flax/50% polyester, the maximum impact strength was noted on 5% basalt/45% flax/50% (16.60J/m). Optimization of mechanical strength using novel topological method shows the optimum fiber weight percentage influence in mechanical performance. From the optimization result it is found that the hybrid composite with 35% basalt/15% flax/50% polyester has superior mechanical property and flax fiber was found to have maximum influ...","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77374809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Dinesh, A. Megalingam, G. Rajamurugan, M. Arundeep, A. Tajdeen
Friction Stir Processing (FSP) is an effective solid state surface modification technique over conventional processing technologies. In the present work, the two reinforcement particles of B4C and SiO2 with different weight ratio were compacted in a square groove of 1.9mm width and 3mm depth on Al 6063 alloy. Al 6063 surface hybrid composites is obtained through friction stir processing by means of a non consumable tool. The tool is made of High speed steel hardened to 51HRC of square probe which is rotated at constant rotational speed, traverse speed and axial force of 1200 rpm, 40mm/min, and 8 kN respectively. The homogeneity of reinforced particles in Al matrix material has been evaluated through microstructure by scanning electron microscope (SEM) and the wear resistance was analyzed through pin –on –disc tribometer at different loads. The results revealed that the distribution of the reinforced particles was uniform and the grain size refinement of an average size of 8 µm has been obtained through multipass FSP. Specific wear rate varies based on applied load and weight ratio of B4C and SiO2.Friction Stir Processing (FSP) is an effective solid state surface modification technique over conventional processing technologies. In the present work, the two reinforcement particles of B4C and SiO2 with different weight ratio were compacted in a square groove of 1.9mm width and 3mm depth on Al 6063 alloy. Al 6063 surface hybrid composites is obtained through friction stir processing by means of a non consumable tool. The tool is made of High speed steel hardened to 51HRC of square probe which is rotated at constant rotational speed, traverse speed and axial force of 1200 rpm, 40mm/min, and 8 kN respectively. The homogeneity of reinforced particles in Al matrix material has been evaluated through microstructure by scanning electron microscope (SEM) and the wear resistance was analyzed through pin –on –disc tribometer at different loads. The results revealed that the distribution of the reinforced particles was uniform and the grain size refinement of an average size of 8 µm has been obtained through mu...
{"title":"Evaluation of microstructure and tribological characterization of friction stir processed Al 6063 / B4C+SiO2 composites","authors":"D. Dinesh, A. Megalingam, G. Rajamurugan, M. Arundeep, A. Tajdeen","doi":"10.1063/1.5117942","DOIUrl":"https://doi.org/10.1063/1.5117942","url":null,"abstract":"Friction Stir Processing (FSP) is an effective solid state surface modification technique over conventional processing technologies. In the present work, the two reinforcement particles of B4C and SiO2 with different weight ratio were compacted in a square groove of 1.9mm width and 3mm depth on Al 6063 alloy. Al 6063 surface hybrid composites is obtained through friction stir processing by means of a non consumable tool. The tool is made of High speed steel hardened to 51HRC of square probe which is rotated at constant rotational speed, traverse speed and axial force of 1200 rpm, 40mm/min, and 8 kN respectively. The homogeneity of reinforced particles in Al matrix material has been evaluated through microstructure by scanning electron microscope (SEM) and the wear resistance was analyzed through pin –on –disc tribometer at different loads. The results revealed that the distribution of the reinforced particles was uniform and the grain size refinement of an average size of 8 µm has been obtained through multipass FSP. Specific wear rate varies based on applied load and weight ratio of B4C and SiO2.Friction Stir Processing (FSP) is an effective solid state surface modification technique over conventional processing technologies. In the present work, the two reinforcement particles of B4C and SiO2 with different weight ratio were compacted in a square groove of 1.9mm width and 3mm depth on Al 6063 alloy. Al 6063 surface hybrid composites is obtained through friction stir processing by means of a non consumable tool. The tool is made of High speed steel hardened to 51HRC of square probe which is rotated at constant rotational speed, traverse speed and axial force of 1200 rpm, 40mm/min, and 8 kN respectively. The homogeneity of reinforced particles in Al matrix material has been evaluated through microstructure by scanning electron microscope (SEM) and the wear resistance was analyzed through pin –on –disc tribometer at different loads. The results revealed that the distribution of the reinforced particles was uniform and the grain size refinement of an average size of 8 µm has been obtained through mu...","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81010606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bishub Choudhury, M. Chandrasekaran, M. Thirugnanasambandam
In this work investigate weld characteristics of gas tungsten arc welding (GTAW) of popular nickel based alloy (Inconel 825) used is aerospace industry. A Box-Behnken design (BBD) of 27 experimental runs was performed with welding current (I), welding speed (V), gas flow rate (GFR) and arc length (N) considered as weld parameters to investigate two welding characteristics such as weldment area (WA) and ultimate tensile strength (UTS) of the weld. The modeling of the weld characteristics is carried out using regression analysis. The developed models are validated for its adequacy and are found adequate enough for possible implementation. Desirability approach is further carried out to obtain optimum weld parameters by simultaneously maximizing the ultimate tensile strength (UTS) while minimizing the weldment area (WA). The optimum combination of weld parameters isI=100A, V=208.78mm/min, GFR=9.93l/min, and N=2.49mm, which results in WA=7.0980mm2 and UTS=588.86MPa. Model graphs are plotted and ANOVA analysis is carried out for identifying the significant process factors and its influence on the responses. Micro Hardness investigation is further carried out and highest hardness values are observed in the heataffected zone (HAZ) followed by base metal and weld zone.In this work investigate weld characteristics of gas tungsten arc welding (GTAW) of popular nickel based alloy (Inconel 825) used is aerospace industry. A Box-Behnken design (BBD) of 27 experimental runs was performed with welding current (I), welding speed (V), gas flow rate (GFR) and arc length (N) considered as weld parameters to investigate two welding characteristics such as weldment area (WA) and ultimate tensile strength (UTS) of the weld. The modeling of the weld characteristics is carried out using regression analysis. The developed models are validated for its adequacy and are found adequate enough for possible implementation. Desirability approach is further carried out to obtain optimum weld parameters by simultaneously maximizing the ultimate tensile strength (UTS) while minimizing the weldment area (WA). The optimum combination of weld parameters isI=100A, V=208.78mm/min, GFR=9.93l/min, and N=2.49mm, which results in WA=7.0980mm2 and UTS=588.86MPa. Model graphs are plotted and ANOVA analysis...
{"title":"Investigation of weldment area and ultimate tensile strength of weld during GTAW of Inconel 825","authors":"Bishub Choudhury, M. Chandrasekaran, M. Thirugnanasambandam","doi":"10.1063/1.5117959","DOIUrl":"https://doi.org/10.1063/1.5117959","url":null,"abstract":"In this work investigate weld characteristics of gas tungsten arc welding (GTAW) of popular nickel based alloy (Inconel 825) used is aerospace industry. A Box-Behnken design (BBD) of 27 experimental runs was performed with welding current (I), welding speed (V), gas flow rate (GFR) and arc length (N) considered as weld parameters to investigate two welding characteristics such as weldment area (WA) and ultimate tensile strength (UTS) of the weld. The modeling of the weld characteristics is carried out using regression analysis. The developed models are validated for its adequacy and are found adequate enough for possible implementation. Desirability approach is further carried out to obtain optimum weld parameters by simultaneously maximizing the ultimate tensile strength (UTS) while minimizing the weldment area (WA). The optimum combination of weld parameters isI=100A, V=208.78mm/min, GFR=9.93l/min, and N=2.49mm, which results in WA=7.0980mm2 and UTS=588.86MPa. Model graphs are plotted and ANOVA analysis is carried out for identifying the significant process factors and its influence on the responses. Micro Hardness investigation is further carried out and highest hardness values are observed in the heataffected zone (HAZ) followed by base metal and weld zone.In this work investigate weld characteristics of gas tungsten arc welding (GTAW) of popular nickel based alloy (Inconel 825) used is aerospace industry. A Box-Behnken design (BBD) of 27 experimental runs was performed with welding current (I), welding speed (V), gas flow rate (GFR) and arc length (N) considered as weld parameters to investigate two welding characteristics such as weldment area (WA) and ultimate tensile strength (UTS) of the weld. The modeling of the weld characteristics is carried out using regression analysis. The developed models are validated for its adequacy and are found adequate enough for possible implementation. Desirability approach is further carried out to obtain optimum weld parameters by simultaneously maximizing the ultimate tensile strength (UTS) while minimizing the weldment area (WA). The optimum combination of weld parameters isI=100A, V=208.78mm/min, GFR=9.93l/min, and N=2.49mm, which results in WA=7.0980mm2 and UTS=588.86MPa. Model graphs are plotted and ANOVA analysis...","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83985965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Present work is focused on experimental investigation of performance, combustion and emission of DI diesel engine using Simarouba Oil Methyl Ester (SuOME). Control of combustion process in order to achieve better performance with reduced emission has been achieved by varying the shape of combustion chamber. In order to study the effect of shapes of different combustion chambers on performance of diesel engine, Toroidal Re-entrant Combustion Chamber (TRCC), Lateral Swirl Combustion Chamber (LSCC), Dual Swirl Combustion Chamber (DSCC) and Lateral Dual Swirl Combustion Chamber (LDSCC) were developed without changing compression ratio of standard diesel engine. Experiments were carried out using optimum injection timing of 27°bTDC, injector opening pressure of 240 bar and nozzle geometry of 6 holes with 0.2 mm diameter. Results of DI diesel engine operated with SuOME revealed that the LSDCC shape resulted in improved engine brake thermal efficiency with minimum HC and CO emission levels compared to other selected combustion chamber shapes.Present work is focused on experimental investigation of performance, combustion and emission of DI diesel engine using Simarouba Oil Methyl Ester (SuOME). Control of combustion process in order to achieve better performance with reduced emission has been achieved by varying the shape of combustion chamber. In order to study the effect of shapes of different combustion chambers on performance of diesel engine, Toroidal Re-entrant Combustion Chamber (TRCC), Lateral Swirl Combustion Chamber (LSCC), Dual Swirl Combustion Chamber (DSCC) and Lateral Dual Swirl Combustion Chamber (LDSCC) were developed without changing compression ratio of standard diesel engine. Experiments were carried out using optimum injection timing of 27°bTDC, injector opening pressure of 240 bar and nozzle geometry of 6 holes with 0.2 mm diameter. Results of DI diesel engine operated with SuOME revealed that the LSDCC shape resulted in improved engine brake thermal efficiency with minimum HC and CO emission levels compared to other sele...
{"title":"Effects of combustion chamber profile on direct injection diesel engine operated with SuOME","authors":"N. Kumar, T. Chandrashekar, N. Banapurmath","doi":"10.1063/1.5117973","DOIUrl":"https://doi.org/10.1063/1.5117973","url":null,"abstract":"Present work is focused on experimental investigation of performance, combustion and emission of DI diesel engine using Simarouba Oil Methyl Ester (SuOME). Control of combustion process in order to achieve better performance with reduced emission has been achieved by varying the shape of combustion chamber. In order to study the effect of shapes of different combustion chambers on performance of diesel engine, Toroidal Re-entrant Combustion Chamber (TRCC), Lateral Swirl Combustion Chamber (LSCC), Dual Swirl Combustion Chamber (DSCC) and Lateral Dual Swirl Combustion Chamber (LDSCC) were developed without changing compression ratio of standard diesel engine. Experiments were carried out using optimum injection timing of 27°bTDC, injector opening pressure of 240 bar and nozzle geometry of 6 holes with 0.2 mm diameter. Results of DI diesel engine operated with SuOME revealed that the LSDCC shape resulted in improved engine brake thermal efficiency with minimum HC and CO emission levels compared to other selected combustion chamber shapes.Present work is focused on experimental investigation of performance, combustion and emission of DI diesel engine using Simarouba Oil Methyl Ester (SuOME). Control of combustion process in order to achieve better performance with reduced emission has been achieved by varying the shape of combustion chamber. In order to study the effect of shapes of different combustion chambers on performance of diesel engine, Toroidal Re-entrant Combustion Chamber (TRCC), Lateral Swirl Combustion Chamber (LSCC), Dual Swirl Combustion Chamber (DSCC) and Lateral Dual Swirl Combustion Chamber (LDSCC) were developed without changing compression ratio of standard diesel engine. Experiments were carried out using optimum injection timing of 27°bTDC, injector opening pressure of 240 bar and nozzle geometry of 6 holes with 0.2 mm diameter. Results of DI diesel engine operated with SuOME revealed that the LSDCC shape resulted in improved engine brake thermal efficiency with minimum HC and CO emission levels compared to other sele...","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75058945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Anand, S. Gollakota, V. Hariprasad, N. Shunmugavelu, Ashifkhan, V. Arumugam
Surface wettability is an important property of functional materials. Wettability influences self-cleaning, drag reduction, corrosion inhibition, anti-icing functions of surfaces etc. This paper presents a study on the wettability of microgroove patterns on stainless steel SS304, a material that is popularly used in aeronautical and automobile sectors where high strength is required. By using a chemical etching technique, microgroove patterns were created on SS304 surfaces with varying ridge width to channel width ratio (RW/CW) ranging from 0.31 to 1.67. The geometry of the created microgrooves was measured using a 3D profilometer. The wetting behaviour of the microgroove surfaces was characterized by measuring the static water contact angle using the sessile drop method. Results showed that the microgroove patterns followed Casie-Baxter behaviour of wetting (i.e. CB model). They showed less wetting when compared to the SS304 flat surface. It was observed that the contact angle and contact diameter formed...
{"title":"Wettability characteristics of microgroove patterned SS304 stainless steel surfaces","authors":"A. Anand, S. Gollakota, V. Hariprasad, N. Shunmugavelu, Ashifkhan, V. Arumugam","doi":"10.1063/1.5117963","DOIUrl":"https://doi.org/10.1063/1.5117963","url":null,"abstract":"Surface wettability is an important property of functional materials. Wettability influences self-cleaning, drag reduction, corrosion inhibition, anti-icing functions of surfaces etc. This paper presents a study on the wettability of microgroove patterns on stainless steel SS304, a material that is popularly used in aeronautical and automobile sectors where high strength is required. By using a chemical etching technique, microgroove patterns were created on SS304 surfaces with varying ridge width to channel width ratio (RW/CW) ranging from 0.31 to 1.67. The geometry of the created microgrooves was measured using a 3D profilometer. The wetting behaviour of the microgroove surfaces was characterized by measuring the static water contact angle using the sessile drop method. Results showed that the microgroove patterns followed Casie-Baxter behaviour of wetting (i.e. CB model). They showed less wetting when compared to the SS304 flat surface. It was observed that the contact angle and contact diameter formed...","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81933261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Kannan, R. Vignesh, K. Kalyan, J. Murugesan, A. Megalingam, R. Padmanaban, M. Govindaraju
Copper-based sintered materials with ceramic reinforcements and solid lubricants are identified as potential brake pad materials for heavy-duty applications (wind turbine), because of their prime thermal and tribological properties. However, the presence of ceramic reinforcement reduces the joint strength between the brake pad and the substrate material. The reduction in joint strength may lead to catastrophic failure of the braking system in the wind turbines when brakes are applied suddenly. This study attempts to synthesize functionally gradient material (FGM), which has a gradient composition of the ceramic particles along the traverse section. FGM was synthesized layer by layer deposition of Cu, Fe, Sn, Cg, SiC, Al2O3 powders with gradient composition. Microstructure, phases, and microhardness of the specimen were analyzed. Tribological studies were performed to assess the wear rate and friction coefficient of the FGM at various loads. The surface morphology of the worn surface was characterized using field emission scanning electron microscope. The study investigated the wear mechanism of the FGM at various loads.Copper-based sintered materials with ceramic reinforcements and solid lubricants are identified as potential brake pad materials for heavy-duty applications (wind turbine), because of their prime thermal and tribological properties. However, the presence of ceramic reinforcement reduces the joint strength between the brake pad and the substrate material. The reduction in joint strength may lead to catastrophic failure of the braking system in the wind turbines when brakes are applied suddenly. This study attempts to synthesize functionally gradient material (FGM), which has a gradient composition of the ceramic particles along the traverse section. FGM was synthesized layer by layer deposition of Cu, Fe, Sn, Cg, SiC, Al2O3 powders with gradient composition. Microstructure, phases, and microhardness of the specimen were analyzed. Tribological studies were performed to assess the wear rate and friction coefficient of the FGM at various loads. The surface morphology of the worn surface was characterized usin...
{"title":"Tribological performance of heavy-duty functionally gradient friction material (Cu-Sn-Fe-Cg-SiC-Al2O3) synthesized by PM route","authors":"K. Kannan, R. Vignesh, K. Kalyan, J. Murugesan, A. Megalingam, R. Padmanaban, M. Govindaraju","doi":"10.1063/1.5117916","DOIUrl":"https://doi.org/10.1063/1.5117916","url":null,"abstract":"Copper-based sintered materials with ceramic reinforcements and solid lubricants are identified as potential brake pad materials for heavy-duty applications (wind turbine), because of their prime thermal and tribological properties. However, the presence of ceramic reinforcement reduces the joint strength between the brake pad and the substrate material. The reduction in joint strength may lead to catastrophic failure of the braking system in the wind turbines when brakes are applied suddenly. This study attempts to synthesize functionally gradient material (FGM), which has a gradient composition of the ceramic particles along the traverse section. FGM was synthesized layer by layer deposition of Cu, Fe, Sn, Cg, SiC, Al2O3 powders with gradient composition. Microstructure, phases, and microhardness of the specimen were analyzed. Tribological studies were performed to assess the wear rate and friction coefficient of the FGM at various loads. The surface morphology of the worn surface was characterized using field emission scanning electron microscope. The study investigated the wear mechanism of the FGM at various loads.Copper-based sintered materials with ceramic reinforcements and solid lubricants are identified as potential brake pad materials for heavy-duty applications (wind turbine), because of their prime thermal and tribological properties. However, the presence of ceramic reinforcement reduces the joint strength between the brake pad and the substrate material. The reduction in joint strength may lead to catastrophic failure of the braking system in the wind turbines when brakes are applied suddenly. This study attempts to synthesize functionally gradient material (FGM), which has a gradient composition of the ceramic particles along the traverse section. FGM was synthesized layer by layer deposition of Cu, Fe, Sn, Cg, SiC, Al2O3 powders with gradient composition. Microstructure, phases, and microhardness of the specimen were analyzed. Tribological studies were performed to assess the wear rate and friction coefficient of the FGM at various loads. The surface morphology of the worn surface was characterized usin...","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85174576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, pure aluminium metal matrix composite was fabricated using powder metallurgy, where MWCNT and fly ash used as reinforcing materials. The density and hardness of specimen were calculated and influence of fly ash and MWCNTs on them was discussed. Compression strength of the composites was measured by compression test. It was observed that hardness had increasing effect for certain weight percentage of Fly ash and above that level showed the negative effect on them. The increased ball milling time resulted in well dispersion of the reinforcements. Compressive strength test revealed that addition of MWCNT along with fly ash was resulted in the improvement of the strength of the composite compared to pure Al.In this paper, pure aluminium metal matrix composite was fabricated using powder metallurgy, where MWCNT and fly ash used as reinforcing materials. The density and hardness of specimen were calculated and influence of fly ash and MWCNTs on them was discussed. Compression strength of the composites was measured by compression test. It was observed that hardness had increasing effect for certain weight percentage of Fly ash and above that level showed the negative effect on them. The increased ball milling time resulted in well dispersion of the reinforcements. Compressive strength test revealed that addition of MWCNT along with fly ash was resulted in the improvement of the strength of the composite compared to pure Al.
{"title":"Effect of addition of fly ash and carbon nanotubes in aluminium metal matrix produced by powder metallurgy","authors":"Udaya Devadiga, Sunil Shetty, P. Fernandes","doi":"10.1063/1.5117921","DOIUrl":"https://doi.org/10.1063/1.5117921","url":null,"abstract":"In this paper, pure aluminium metal matrix composite was fabricated using powder metallurgy, where MWCNT and fly ash used as reinforcing materials. The density and hardness of specimen were calculated and influence of fly ash and MWCNTs on them was discussed. Compression strength of the composites was measured by compression test. It was observed that hardness had increasing effect for certain weight percentage of Fly ash and above that level showed the negative effect on them. The increased ball milling time resulted in well dispersion of the reinforcements. Compressive strength test revealed that addition of MWCNT along with fly ash was resulted in the improvement of the strength of the composite compared to pure Al.In this paper, pure aluminium metal matrix composite was fabricated using powder metallurgy, where MWCNT and fly ash used as reinforcing materials. The density and hardness of specimen were calculated and influence of fly ash and MWCNTs on them was discussed. Compression strength of the composites was measured by compression test. It was observed that hardness had increasing effect for certain weight percentage of Fly ash and above that level showed the negative effect on them. The increased ball milling time resulted in well dispersion of the reinforcements. Compressive strength test revealed that addition of MWCNT along with fly ash was resulted in the improvement of the strength of the composite compared to pure Al.","PeriodicalId":13819,"journal":{"name":"INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85259758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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