In the harbour of Port Louis, a wheat ship unloader was facing serious corrosion problems due to the severe marine environment. Therefore, the aim of this study is to propose an effective corrosion protection system for the wheat ship unloader. In addition, wear was observed in its conveyor system. Solutions were proposed to reduce this. Different coating systems were selected, based on ISO 12944-5, including the coating presently being used on the equipment. Outdoor atmospheric exposures and lab tests were performed. The latter consisted of immersion test, water vapour transmission rate of coatings, wet scrub abrasion test, scratch test, pull-out test and flexibility test. For investigating the wear in the conveyor system, flow simulations were performed on Soildworks using different materials. From the investigation performed, it was found that the combination of modified vinyl epoxy primer and acryline polyurethane acrylic top coat was the most suitable for the ship unloader. For the wear problem, aluminium 6061was found to be a more wear resistant material.
{"title":"Investigation on corrosion protection systems and wear problems for a ship unloader","authors":"","doi":"10.4018/ijseims.302236","DOIUrl":"https://doi.org/10.4018/ijseims.302236","url":null,"abstract":"In the harbour of Port Louis, a wheat ship unloader was facing serious corrosion problems due to the severe marine environment. Therefore, the aim of this study is to propose an effective corrosion protection system for the wheat ship unloader. In addition, wear was observed in its conveyor system. Solutions were proposed to reduce this. Different coating systems were selected, based on ISO 12944-5, including the coating presently being used on the equipment. Outdoor atmospheric exposures and lab tests were performed. The latter consisted of immersion test, water vapour transmission rate of coatings, wet scrub abrasion test, scratch test, pull-out test and flexibility test. For investigating the wear in the conveyor system, flow simulations were performed on Soildworks using different materials. From the investigation performed, it was found that the combination of modified vinyl epoxy primer and acryline polyurethane acrylic top coat was the most suitable for the ship unloader. For the wear problem, aluminium 6061was found to be a more wear resistant material.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42423758","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}
Aluminium (Al) alloys are now-a-days used starting from aerospace, automotive body panel, to kitchen ware especially due to their high strength to weight ratio. Aluminium having copper as major alloying element exhibit good mechanical properties at room as well as at high temperature working conditions. But presence of silicon in these alloys adversely affect the strength at high temperature. The current paper analyses change in microstructure and it’s effect on mechanical properties of Aluminium-Copper(Al-Cu) alloy with varying wt% of copper. The Al-Cu alloy developed for study contain silicon as trace element only. Tests carried out to evaluate the impact of such variations on tensile and metallurgical behaviour at room temperature. Analysis of microstructure change with varying wt% of Copper is studied which goes well with the tensile data recorded. Effect of heat treatment (T6) on tensile properties was studied. The tensile results both as cast and heat treated suggest Al-Cu alloy containing 8wt% of Copper as the optimum composition.
{"title":"Effect of Copper Addition on Tensile Behaviour of Al-Cu Alloy Used in High Temperature Applications","authors":"","doi":"10.4018/ijseims.302238","DOIUrl":"https://doi.org/10.4018/ijseims.302238","url":null,"abstract":"Aluminium (Al) alloys are now-a-days used starting from aerospace, automotive body panel, to kitchen ware especially due to their high strength to weight ratio. Aluminium having copper as major alloying element exhibit good mechanical properties at room as well as at high temperature working conditions. But presence of silicon in these alloys adversely affect the strength at high temperature. The current paper analyses change in microstructure and it’s effect on mechanical properties of Aluminium-Copper(Al-Cu) alloy with varying wt% of copper. The Al-Cu alloy developed for study contain silicon as trace element only. Tests carried out to evaluate the impact of such variations on tensile and metallurgical behaviour at room temperature. Analysis of microstructure change with varying wt% of Copper is studied which goes well with the tensile data recorded. Effect of heat treatment (T6) on tensile properties was studied. The tensile results both as cast and heat treated suggest Al-Cu alloy containing 8wt% of Copper as the optimum composition.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48504774","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}
Sartaj Singh, Vijay Kumar, S. Kango, R. Verma, N. Sharma
The aim of this research is to create self-cleaning hydrophobic and superhydrophobic surfaces (SHS) on a glass substrate. Carbon soot has been deposited from the candle flame in order to manufacture a SHS on glass slides. The water contact angle (WCA) and roll-off angle were measured after carbon soot deposition using a test rig built in the laboratory. Further, to make SHS on glass slides more robust, candle wax and vassilline were applied on a glass substrate with or without roughening it using emery paper of grade (P80, P220 & P400). The highest WCA was 160° for a candle sooted on glass roughened with emery paper of grade P80 using vassilline as an adhesive. The mechanical durability of the prepared surfaces has been investigated using a peel-off technique with highly glue adhesive tape. The WCA was measured after each peel-off to check the changes in the degree of wettability of the fabricated surface. From the investigation, it has also been observed that more roughened glass slides show more resistance to the removal of carbon soot.
{"title":"Fabrication and Evaluation of Superhydrophobic Surfaces Using Carbon Soot and Different Adhesives","authors":"Sartaj Singh, Vijay Kumar, S. Kango, R. Verma, N. Sharma","doi":"10.4018/ijseims.304807","DOIUrl":"https://doi.org/10.4018/ijseims.304807","url":null,"abstract":"The aim of this research is to create self-cleaning hydrophobic and superhydrophobic surfaces (SHS) on a glass substrate. Carbon soot has been deposited from the candle flame in order to manufacture a SHS on glass slides. The water contact angle (WCA) and roll-off angle were measured after carbon soot deposition using a test rig built in the laboratory. Further, to make SHS on glass slides more robust, candle wax and vassilline were applied on a glass substrate with or without roughening it using emery paper of grade (P80, P220 & P400). The highest WCA was 160° for a candle sooted on glass roughened with emery paper of grade P80 using vassilline as an adhesive. The mechanical durability of the prepared surfaces has been investigated using a peel-off technique with highly glue adhesive tape. The WCA was measured after each peel-off to check the changes in the degree of wettability of the fabricated surface. From the investigation, it has also been observed that more roughened glass slides show more resistance to the removal of carbon soot.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42960870","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 the present work, experimental investigations were performed to study the effect of various machine parameters like sliding velocity (S_v), sliding distance (S_d), and load (L), on specific wear (W_s) and coefficient of friction (COF). The experiments were performed on a novel carbon fiber reinforced composite consisting of fishbone powder as filler. Response surface methodology (RSM) was used to develop the statistical models to predict the specific wear rate and coefficient of friction (µ) of the developed composite. A set of 20 experiments were designed according to the central composite design technique. Analysis of variance (ANOVA) was carried out at a confidence interval of 95% to determine the parameters that significantly affect (p<0.05) the output responses. It was also found that among the various parameters, the influence of S_d was most significant (33.4%) on W_s followed by S_v (20.3%) and L (17.9%). For COF, the percentage contribution of S_v was maximum i.e. 64%, followed by S_d (17.8%) and L (7.8%).
{"title":"Experimental investigations and statistical modeling of specific wear and coefficient of friction in a novel carbon fiber reinforced composite","authors":"","doi":"10.4018/ijseims.295098","DOIUrl":"https://doi.org/10.4018/ijseims.295098","url":null,"abstract":"In the present work, experimental investigations were performed to study the effect of various machine parameters like sliding velocity (S_v), sliding distance (S_d), and load (L), on specific wear (W_s) and coefficient of friction (COF). The experiments were performed on a novel carbon fiber reinforced composite consisting of fishbone powder as filler. Response surface methodology (RSM) was used to develop the statistical models to predict the specific wear rate and coefficient of friction (µ) of the developed composite. A set of 20 experiments were designed according to the central composite design technique. Analysis of variance (ANOVA) was carried out at a confidence interval of 95% to determine the parameters that significantly affect (p<0.05) the output responses. It was also found that among the various parameters, the influence of S_d was most significant (33.4%) on W_s followed by S_v (20.3%) and L (17.9%). For COF, the percentage contribution of S_v was maximum i.e. 64%, followed by S_d (17.8%) and L (7.8%).","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47655726","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}
EN-9 is one of the steel grades, and it is widely used in power plants, automobiles, and the aerospace sector. The availability and ductility of EN9 steel have been limited. Heat-treatment procedures are used to increase the hardness, wear resistance, and percentage of elongation. The main intention of this study is to discover the effect of heat treatment on EN8 steel. In this work, the various kinds of heat-treatment methods like annealing, normalizing, hardening, and tempering were carried out on EN-8 steel. Mechanical properties like hardness, tensile strength, and percentage of elongation are evaluated. The microstructure is examined and compared, before and after the heat treatment process. Hardening and tempering results indicated that EN8 steel has better hardness, yield strength, ultimate tensile strength and elongation when compared to EN9 steel.
{"title":"Effect of the Heat-Treatment Process on the Mechanical and Microstructure Properties of EN8 Steel","authors":"R. Chandran, Udhayaraj S., Eazhil K. M.","doi":"10.4018/ijseims.313628","DOIUrl":"https://doi.org/10.4018/ijseims.313628","url":null,"abstract":"EN-9 is one of the steel grades, and it is widely used in power plants, automobiles, and the aerospace sector. The availability and ductility of EN9 steel have been limited. Heat-treatment procedures are used to increase the hardness, wear resistance, and percentage of elongation. The main intention of this study is to discover the effect of heat treatment on EN8 steel. In this work, the various kinds of heat-treatment methods like annealing, normalizing, hardening, and tempering were carried out on EN-8 steel. Mechanical properties like hardness, tensile strength, and percentage of elongation are evaluated. The microstructure is examined and compared, before and after the heat treatment process. Hardening and tempering results indicated that EN8 steel has better hardness, yield strength, ultimate tensile strength and elongation when compared to EN9 steel.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47142686","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}
Pub Date : 2021-07-01DOI: 10.4018/IJSEIMS.2021070101
L. Burstein
The load support of a lubricating film that separates the surfaces textured by identical equidistant spaced hemispherical pores was investigated. Two-dimensional time-dependent Reynolds equation is solved numerically for different pore-radius-to-gap and cell-dimension-to-pore-radius ratios and for different relative pore positions of opposite surfaces. The results are compared with the data obtained for the case when only one of the opposite surfaces is covered with pores. The obtained data show a maximum in the carrying capacity of the lubricating film when the cell-to-pore-radii ratio is approximately equal to two, in the case of two opposite surfaces with pores. At small pore radii and with increasing cell dimensions, the load support of two surfaces with pores is much greater than in the case of one surface with pores. This behavior reverses with increasing pore diameter. The presented analysis and the provided MATLAB programs are applicable for mechanisms having rubbing mechanical parts with surfaces covered with pores.
{"title":"Load-Carrying Capacity of the Lubricating Film in the Gap Between Surfaces Textured by Hemispherical Pores","authors":"L. Burstein","doi":"10.4018/IJSEIMS.2021070101","DOIUrl":"https://doi.org/10.4018/IJSEIMS.2021070101","url":null,"abstract":"The load support of a lubricating film that separates the surfaces textured by identical equidistant spaced hemispherical pores was investigated. Two-dimensional time-dependent Reynolds equation is solved numerically for different pore-radius-to-gap and cell-dimension-to-pore-radius ratios and for different relative pore positions of opposite surfaces. The results are compared with the data obtained for the case when only one of the opposite surfaces is covered with pores. The obtained data show a maximum in the carrying capacity of the lubricating film when the cell-to-pore-radii ratio is approximately equal to two, in the case of two opposite surfaces with pores. At small pore radii and with increasing cell dimensions, the load support of two surfaces with pores is much greater than in the case of one surface with pores. This behavior reverses with increasing pore diameter. The presented analysis and the provided MATLAB programs are applicable for mechanisms having rubbing mechanical parts with surfaces covered with pores.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70461917","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}
Pub Date : 2021-07-01DOI: 10.4018/IJSEIMS.2021070104
V. Msomi, Busiswa Tracey Jantjies
Friction stir welding (FSW) is considered as the new joining technique which does not involve fumes like any traditional joining techniques. The attainment of good weld depends on proper combination of FSW parameters, and this combination varies with the materials that are being welded. The tool rotational speed is known as the most critical parameter towards the generation of heat required to produce the weld in friction stir welding. This parameter plays an important role in restructuring the stir zone. The variation of this parameter may yield certain results which are dependent on the type of materials being welded. This paper reports on the impact of the rotational speed variation on the tensile properties of AA6082-T6 joints. The rotational speed was varied while keeping all the other welding parameters constant. The analysis was performed comparatively on the specimens that were sampled from different locations of the joint. The joints produced through the rotational speed of 600 rpm showed good tensile properties compared to joints produced through other rotational speeds.
{"title":"Correlative Analysis Between Tensile Properties and Tool Rotational Speeds of Friction Stir Welded Similar Aluminium Alloy Joints","authors":"V. Msomi, Busiswa Tracey Jantjies","doi":"10.4018/IJSEIMS.2021070104","DOIUrl":"https://doi.org/10.4018/IJSEIMS.2021070104","url":null,"abstract":"Friction stir welding (FSW) is considered as the new joining technique which does not involve fumes like any traditional joining techniques. The attainment of good weld depends on proper combination of FSW parameters, and this combination varies with the materials that are being welded. The tool rotational speed is known as the most critical parameter towards the generation of heat required to produce the weld in friction stir welding. This parameter plays an important role in restructuring the stir zone. The variation of this parameter may yield certain results which are dependent on the type of materials being welded. This paper reports on the impact of the rotational speed variation on the tensile properties of AA6082-T6 joints. The rotational speed was varied while keeping all the other welding parameters constant. The analysis was performed comparatively on the specimens that were sampled from different locations of the joint. The joints produced through the rotational speed of 600 rpm showed good tensile properties compared to joints produced through other rotational speeds.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70461667","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}
Pub Date : 2021-07-01DOI: 10.4018/IJSEIMS.2021070102
Mukhtiar Singh, Hitesh Vasudev, Ravinder Kumar
Boron nitride coatings were synthesised on 316L stainless steel substrates through the radio frequency magnetron sputtering from a target made of hexagonal boron nitride. The process of deposition was conducted in three separate N2 and Ar system mixing regimes. Scanning electron microscopy (SEM) and x-ray diffraction (XRD) techniques investigated the microstructure morphology and composition of the BN films at varying ratio of N2 and Ar plasma. This research aimed to examine the effects of changing the N2 gas ratio on the structure and structural morphology of c-BN coatings. Using QAr / QN2-5/1 ratios, an increased consistency of the microstructure and further c-BN step formation suggest a fundamental technique for producing superior quality cubic boron nitride films. The electrochemical corrosion test and mechanical analysis was performed to study corrosion and tribological behaviour of the BN coating, and the results showed more improvement in corrosion and tribilogical behaviour in case of BN2 regime. The BN2 regime showed a maximum corrosion resistance of around 1.114 mpy (miles per year). The young's modulus of 346Gpa in magnitude in case of BN2 thin film was found to be higher as compared to base material and other two thin films.
{"title":"Corrosion and Tribological Behaviour of BN Thin Films Deposited Using Magnetron Sputtering","authors":"Mukhtiar Singh, Hitesh Vasudev, Ravinder Kumar","doi":"10.4018/IJSEIMS.2021070102","DOIUrl":"https://doi.org/10.4018/IJSEIMS.2021070102","url":null,"abstract":"Boron nitride coatings were synthesised on 316L stainless steel substrates through the radio frequency magnetron sputtering from a target made of hexagonal boron nitride. The process of deposition was conducted in three separate N2 and Ar system mixing regimes. Scanning electron microscopy (SEM) and x-ray diffraction (XRD) techniques investigated the microstructure morphology and composition of the BN films at varying ratio of N2 and Ar plasma. This research aimed to examine the effects of changing the N2 gas ratio on the structure and structural morphology of c-BN coatings. Using QAr / QN2-5/1 ratios, an increased consistency of the microstructure and further c-BN step formation suggest a fundamental technique for producing superior quality cubic boron nitride films. The electrochemical corrosion test and mechanical analysis was performed to study corrosion and tribological behaviour of the BN coating, and the results showed more improvement in corrosion and tribilogical behaviour in case of BN2 regime. The BN2 regime showed a maximum corrosion resistance of around 1.114 mpy (miles per year). The young's modulus of 346Gpa in magnitude in case of BN2 thin film was found to be higher as compared to base material and other two thin films.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49004107","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}
Pub Date : 2021-07-01DOI: 10.4018/IJSEIMS.2021070105
Balraj Singh, Jagdev Singh, R. Joshi
Friction stir processing (FSP) is an emerging method for improving surface properties of materials by composite fabrication. This study aims at optimizing the major FSP parameters and analysis of their real-time influence on the mechanical performance of a surface composite fabricated with Magnesium (Mg) matrix and Titanium Carbide (TiC) as reinforcement. Effects of different process parameters, tool rotational speed, plunge depth, the linear speed of the tool, cooling condition, and number of FSP passes have been examined. Using L27 array, a total of 27 combinations of these process parameters were analyzed by taking microhardness as an output response to find influential parameters by Taguchi's technique. Maximum micro-hardness was achieved when tool rpm of 600, cooling temperature of -10o C, tool feed of 15 mm/min, plunge depth of 0.35 mm, and 3 passes of FSP tool were chosen with the help of Taguchi's method. Analysis of variance indicated that cooling temperature, the tool feed, and the number of passes of the FSP tool were the most significant parameters.
{"title":"Development and Parametric Optimisation of Pure Magnesium Matrix Surface Composite by Friction Stir Processing","authors":"Balraj Singh, Jagdev Singh, R. Joshi","doi":"10.4018/IJSEIMS.2021070105","DOIUrl":"https://doi.org/10.4018/IJSEIMS.2021070105","url":null,"abstract":"Friction stir processing (FSP) is an emerging method for improving surface properties of materials by composite fabrication. This study aims at optimizing the major FSP parameters and analysis of their real-time influence on the mechanical performance of a surface composite fabricated with Magnesium (Mg) matrix and Titanium Carbide (TiC) as reinforcement. Effects of different process parameters, tool rotational speed, plunge depth, the linear speed of the tool, cooling condition, and number of FSP passes have been examined. Using L27 array, a total of 27 combinations of these process parameters were analyzed by taking microhardness as an output response to find influential parameters by Taguchi's technique. Maximum micro-hardness was achieved when tool rpm of 600, cooling temperature of -10o C, tool feed of 15 mm/min, plunge depth of 0.35 mm, and 3 passes of FSP tool were chosen with the help of Taguchi's method. Analysis of variance indicated that cooling temperature, the tool feed, and the number of passes of the FSP tool were the most significant parameters.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47291190","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}
Pub Date : 2021-07-01DOI: 10.4018/IJSEIMS.2021070103
K. Arun, Manjula S
Experimental analysis is made to investigate the most significant fracture characterizing parameters in plasma sprayed substrate-coating composite. The experiments were conducted on the single edge notched bars (SENB) made with 7075 series aluminum alloy, with plasma sprayed Al2O3-TiO2 and WC-Co top coats. The pre-cracked bars were fractured in computerized universal testing machine in controlled conditions. The material has been tested under age-hardened and coated conditions also. The results have revealed that the age hardening and type of coating have a much influence on strain energy release rate. The experimental results have shown that WC-Co coated normal materials possess higher strength whereas uncoated normal materials possess lower strength. It is also found that Al2O3-TiO2 coated material possess better coating bond strength and moderate load bearing capacity. The SEM fractographic analysis has been made to analyze the fracture behavior as a function of coating type and the material conditions.
{"title":"Mechanism of Fracture in Pre-Cracked Single-Edged Notched Bars With AI2O3-TiO2 and WC-CO Coatings","authors":"K. Arun, Manjula S","doi":"10.4018/IJSEIMS.2021070103","DOIUrl":"https://doi.org/10.4018/IJSEIMS.2021070103","url":null,"abstract":"Experimental analysis is made to investigate the most significant fracture characterizing parameters in plasma sprayed substrate-coating composite. The experiments were conducted on the single edge notched bars (SENB) made with 7075 series aluminum alloy, with plasma sprayed Al2O3-TiO2 and WC-Co top coats. The pre-cracked bars were fractured in computerized universal testing machine in controlled conditions. The material has been tested under age-hardened and coated conditions also. The results have revealed that the age hardening and type of coating have a much influence on strain energy release rate. The experimental results have shown that WC-Co coated normal materials possess higher strength whereas uncoated normal materials possess lower strength. It is also found that Al2O3-TiO2 coated material possess better coating bond strength and moderate load bearing capacity. The SEM fractographic analysis has been made to analyze the fracture behavior as a function of coating type and the material conditions.","PeriodicalId":37123,"journal":{"name":"International Journal of Surface Engineering and Interdisciplinary Materials Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42176043","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：