Pub Date : 2014-01-01DOI: 10.7494/MAFE.2014.40.3.175
Z. Zamkotowicz, B. Augustyn, P. Kumor, D. Kapinos, J. Żelechowski, M. Bigaj
The casting of ingots from aluminum alloys with a small range of solidification temperatures currently poses no major technical problems. On the other hand, problems do occur when multicomponent alloys containing elements such as Cu, Zn, or Mg are cast. This applies to alloys both wrought and cast. For these alloys, the differences in temperature starting and ending the solidification process reach 160°C. The difficulties are even more pronounced when the diameter of the cast ingot is less than 100 mm. Casting small-diameter ingots requires a very careful selection of parameters, which – for ingots with a diameter of about 70 mm – usually involve very high casting rates of up to 400 mm/min. The formation of a subsurface zone in the ingot along the crystallizer working length of several centimeters is very difficult at such a high casting rate and requires the precise determination of parameters for each alloy, particularly if this is a multicomponent alloy with a wide range of solidification temperatures. To this family of alloys belong multicomponent silumins, with the special case of phosphorus-modified near-eutectic and hypereutectic systems. Below are the results of technological tests as well as structure examinations of ingots cast from silumins with different ranges of solidification temperatures. Ingots of 100-mm diameters were cast in a vertical system. In this arrangement, ingots with a diameter of 70 mm were also cast, using crystallizers normally operating in a horizontal continuous casting line.
{"title":"CASTING SMALL-DIAMETER INGOTS FROM MULTICOMPONENT SILUMINS","authors":"Z. Zamkotowicz, B. Augustyn, P. Kumor, D. Kapinos, J. Żelechowski, M. Bigaj","doi":"10.7494/MAFE.2014.40.3.175","DOIUrl":"https://doi.org/10.7494/MAFE.2014.40.3.175","url":null,"abstract":"The casting of ingots from aluminum alloys with a small range of solidification temperatures currently poses no major technical problems. On the other hand, problems do occur when multicomponent alloys containing elements such as Cu, Zn, or Mg are cast. This applies to alloys both wrought and cast. For these alloys, the differences in temperature starting and ending the solidification process reach 160°C. The difficulties are even more pronounced when the diameter of the cast ingot is less than 100 mm. Casting small-diameter ingots requires a very careful selection of parameters, which – for ingots with a diameter of about 70 mm – usually involve very high casting rates of up to 400 mm/min. The formation of a subsurface zone in the ingot along the crystallizer working length of several centimeters is very difficult at such a high casting rate and requires the precise determination of parameters for each alloy, particularly if this is a multicomponent alloy with a wide range of solidification temperatures. To this family of alloys belong multicomponent silumins, with the special case of phosphorus-modified near-eutectic and hypereutectic systems. Below are the results of technological tests as well as structure examinations of ingots cast from silumins with different ranges of solidification temperatures. Ingots of 100-mm diameters were cast in a vertical system. In this arrangement, ingots with a diameter of 70 mm were also cast, using crystallizers normally operating in a horizontal continuous casting line.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"34 1","pages":"175"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85259168","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 : 2014-01-01DOI: 10.7494/MAFE.2014.40.3.125
E. Czekaj, S. Pysz
This article presents the possibility of decreasing dispersed shrinkage microporosity in castings of hypoeutectic alloying silumins, as a result of narrowing – within the standards or industrial specifications – the content of particular elements of the chemical composition: alloying additions and/or impurities. This relatively-simple and, at the same time, inexpensive method can often lead to a quick solution of this type of defects in castings and the improvement of their tightness. In order to orientate the chemical composition towards an optimal content computer-aided statistical processing was conducted (using Statistica Ver. 9 software) with the application of figures directly related to shrinkage microporosity as well as indirectly related to the temperature range of crystallisation (ΔT = Tlik – Tsol). This data came from literature and MAGMASoft® software for simulations of pouring and solidification processes in castings. The achieved results were verified under industrial conditions.
{"title":"THE APPLICATION OF A COMPUTER TECHNIQUE TO ASSESS THE IMPACT OF CHEMICAL COMPOSITION ON DISPERSED SHRINKAGE MICROPOROSITY OF HYPOEUTECTIC CAST SILUMINS","authors":"E. Czekaj, S. Pysz","doi":"10.7494/MAFE.2014.40.3.125","DOIUrl":"https://doi.org/10.7494/MAFE.2014.40.3.125","url":null,"abstract":"This article presents the possibility of decreasing dispersed shrinkage microporosity in castings of hypoeutectic alloying silumins, as a result of narrowing – within the standards or industrial specifications – the content of particular elements of the chemical composition: alloying additions and/or impurities. This relatively-simple and, at the same time, inexpensive method can often lead to a quick solution of this type of defects in castings and the improvement of their tightness. In order to orientate the chemical composition towards an optimal content computer-aided statistical processing was conducted (using Statistica Ver. 9 software) with the application of figures directly related to shrinkage microporosity as well as indirectly related to the temperature range of crystallisation (ΔT = Tlik – Tsol). This data came from literature and MAGMASoft® software for simulations of pouring and solidification processes in castings. The achieved results were verified under industrial conditions.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"2015 1","pages":"125"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87841540","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 : 2014-01-01DOI: 10.7494/MAFE.2014.40.4.221
D. Fydrych, A. Świerczyńska, G. Rogalski
The article describes manufacturing technology of multilayer joints in terms of control the diffusible hydrogen content. Diffusible hydrogen content in deposited metal for multilayer welded joints made of covered rutile electrodes or covered cellulosic and basic electrodes was determined. It was found that after four beads, the diffusible hydrogen content decreases in the case of the first technology from 36 ml/100 g to 18 ml/100 g while in the second of about 40 ml/100 g to a level of 12 ml/100 g. The explanation of the mechanisms responsible for this phenomenon and directions for further study were proposed.
{"title":"DIFFUSIBLE HYDROGEN CONTENT IN DEPOSITED METAL OF MULTILAYER WELDED JOINTS","authors":"D. Fydrych, A. Świerczyńska, G. Rogalski","doi":"10.7494/MAFE.2014.40.4.221","DOIUrl":"https://doi.org/10.7494/MAFE.2014.40.4.221","url":null,"abstract":"The article describes manufacturing technology of multilayer joints in terms of control the diffusible hydrogen content. Diffusible hydrogen content in deposited metal for multilayer welded joints made of covered rutile electrodes or covered cellulosic and basic electrodes was determined. It was found that after four beads, the diffusible hydrogen content decreases in the case of the first technology from 36 ml/100 g to 18 ml/100 g while in the second of about 40 ml/100 g to a level of 12 ml/100 g. The explanation of the mechanisms responsible for this phenomenon and directions for further study were proposed.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"239 1","pages":"221"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73122853","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 : 2013-12-31DOI: 10.7494/MAFE.2013.39.2.7
T. Kozieł, P. Matusiewicz, M. Kopyściański, A. Zielińska-Lipiec
One of the factors influencing possibly of bulk metallic glass fomation is cooling rate attainable in the casting process. The evaluation of the cooling rate of the suction-cast 3 mm rods is presented based on the measurements of the cellular spacing in the Fe-25Ni and lamellar spacing in the Cu-33 Al alloys. The estimated cooling rates are higher close to the rod surface than in the rod axis, which indicates the dominant radial heat flow. In contrast, for the Al-33Cu alloy higher cooling rates were evaluated in the rod axis than close to the surface due to the concave perturbation of the solidification front during eutectic transformation. Based on the results obtained for the Fe-25Ni alloy, it is concluded, that the cooling rate for the suction-cast 3 mm rod is not lower than 228 Ks-1.
{"title":"Estimation of the cooling rate in 3 mm suction-cast rods based on the microstructural features","authors":"T. Kozieł, P. Matusiewicz, M. Kopyściański, A. Zielińska-Lipiec","doi":"10.7494/MAFE.2013.39.2.7","DOIUrl":"https://doi.org/10.7494/MAFE.2013.39.2.7","url":null,"abstract":"One of the factors influencing possibly of bulk metallic glass fomation is cooling rate attainable in the casting process. The evaluation of the cooling rate of the suction-cast 3 mm rods is presented based on the measurements of the cellular spacing in the Fe-25Ni and lamellar spacing in the Cu-33 Al alloys. The estimated cooling rates are higher close to the rod surface than in the rod axis, which indicates the dominant radial heat flow. In contrast, for the Al-33Cu alloy higher cooling rates were evaluated in the rod axis than close to the surface due to the concave perturbation of the solidification front during eutectic transformation. Based on the results obtained for the Fe-25Ni alloy, it is concluded, that the cooling rate for the suction-cast 3 mm rod is not lower than 228 Ks-1.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"25 1","pages":"7"},"PeriodicalIF":0.0,"publicationDate":"2013-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78237796","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 : 2013-12-31DOI: 10.7494/MAFE.2013.39.2.37
J. Kozana, S. Rzadkosz, A. Garbacz-Klempka, M. Piękoś, W. Cieślak
The research aimed at assessing the influence of alloying elements, such as aluminium, silicon, nickel as well as lead and bismuth on the chosen alloys of Cu-Zn. Microstructures were examined with the help of optical and scanning microscopy with X-ray microanalysis. The properties of the received alloys were determined with regard to changes in the chosen mechanical parameters, namely R m , A 5 , HB, also, machinability changes were assessed as well as proclivity to hot fracturing of Cu-Zn alloys with additives of lead and bismuth. The results indicate the possibility of obtaining, within the alloys analysed, very high mechanical properties: R m up to 700 MPa, hardness within the range of 130 – 180 HB and A 5 from 3 to 30 %. Also, in the case of the researched alloys, the machining and hot fracturing results look promising.
{"title":"THE INFLUENCE OF SELECTED ALLOYING ELEMENTS ON THE MICROSTRUCTURE, SELECTED MECHANICAL AND TECHNOLOGICAL PROPERTIES OF BRASSES","authors":"J. Kozana, S. Rzadkosz, A. Garbacz-Klempka, M. Piękoś, W. Cieślak","doi":"10.7494/MAFE.2013.39.2.37","DOIUrl":"https://doi.org/10.7494/MAFE.2013.39.2.37","url":null,"abstract":"The research aimed at assessing the influence of alloying elements, such as aluminium, silicon, nickel as well as lead and bismuth on the chosen alloys of Cu-Zn. Microstructures were examined with the help of optical and scanning microscopy with X-ray microanalysis. The properties of the received alloys were determined with regard to changes in the chosen mechanical parameters, namely R m , A 5 , HB, also, machinability changes were assessed as well as proclivity to hot fracturing of Cu-Zn alloys with additives of lead and bismuth. The results indicate the possibility of obtaining, within the alloys analysed, very high mechanical properties: R m up to 700 MPa, hardness within the range of 130 – 180 HB and A 5 from 3 to 30 %. Also, in the case of the researched alloys, the machining and hot fracturing results look promising.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"367 1","pages":"37"},"PeriodicalIF":0.0,"publicationDate":"2013-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84916246","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 : 2013-12-31DOI: 10.7494/MAFE.2013.39.2.15
A. Sajek
The paper presents an example of design solution of aluminum goam glue joint using twocomponent epoxy glue. The joint principles for distribution forces and stresses in the tensile sample were formulated. Recommendations for surface preparation of foam and gluing procedure aimed at control the porosity of the foam and glued surface roughness were established. As a result of strength test defined joint destruction mechanism was proposed. It was suggested that optimized joint design improving its properties.
{"title":"ALUMINUM FOAMS GLUING","authors":"A. Sajek","doi":"10.7494/MAFE.2013.39.2.15","DOIUrl":"https://doi.org/10.7494/MAFE.2013.39.2.15","url":null,"abstract":"The paper presents an example of design solution of aluminum goam glue joint using twocomponent epoxy glue. The joint principles for distribution forces and stresses in the tensile sample were formulated. Recommendations for surface preparation of foam and gluing procedure aimed at control the porosity of the foam and glued surface roughness were established. As a result of strength test defined joint destruction mechanism was proposed. It was suggested that optimized joint design improving its properties.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"32 1","pages":"15"},"PeriodicalIF":0.0,"publicationDate":"2013-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78737216","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 : 2013-12-31DOI: 10.7494/MAFE.2013.39.2.47
M. Stygar, P. Kurtyka, T. Brylewski, W. Tejchman, R. Staśko
The paper presents the results of investigations of the physicochemical and mechanical properties of the Crofer 22 APU steel designed for application in metallic interconnects forming the key components of solid oxide fuel cells (SOFCs). Microstructural and hardness studies of non-metallic inclusions and the matrix were carried out. Based on compression tests of raw Crofer 22 APU and the steel after 600 hrs of cyclic oxidation in air at 800°C , the composition of non-metallic inclusions and their influence on the strength properties of the steel were determined.
{"title":"PHYSICOCHEMICAL AND MECHANICAL PROPERTIES OF CROFER 22 APU FERRITIC STEEL APPLIED IN SOFC INTERCONNECTS","authors":"M. Stygar, P. Kurtyka, T. Brylewski, W. Tejchman, R. Staśko","doi":"10.7494/MAFE.2013.39.2.47","DOIUrl":"https://doi.org/10.7494/MAFE.2013.39.2.47","url":null,"abstract":"The paper presents the results of investigations of the physicochemical and mechanical properties of the Crofer 22 APU steel designed for application in metallic interconnects forming the key components of solid oxide fuel cells (SOFCs). Microstructural and hardness studies of non-metallic inclusions and the matrix were carried out. Based on compression tests of raw Crofer 22 APU and the steel after 600 hrs of cyclic oxidation in air at 800°C , the composition of non-metallic inclusions and their influence on the strength properties of the steel were determined.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"25 1","pages":"47"},"PeriodicalIF":0.0,"publicationDate":"2013-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83364232","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 : 2013-12-31DOI: 10.7494/MAFE.2013.39.2.29
A. Garbacz-Klempka, S. Rzadkosz, T. Stolarczyk, J. Kozana, M. Piękoś
Many traces of copper metallurgy, such as slag and other copper melts, can be found in the area of Lower Silesia. The research programme, which assesses the exact location and detailed inventory of the sites connected with mining and copper smelting in the area of three historical regions of its exploitation, as well as testing of the collected material is implemented by the Copper Museum in Legnica, in collaboration with the Faculty of Foundry, at the University of Science and Technology. The tested material mainly consists of copper slag with different content of copper melts, being a semi product. The copper metallurgy remains, discovered during the research, undergo specialistic analyses, which will help better characterise the findings as well as contribute to documenting metallurgical processes in the historical bloomeries in Lower Silesia, and moreover to prepare further research in this field. The material coming from the area of Miedzianka, being the oldest and the longest working exploitation centre of copper ores and pollymetalic ores, is of special significance for the research. Mining activity in the area of Miedzianka took place as early as the beginning of the 14 th century, the first record from 1311 ( Cuprifodina in montubus) is the oldest information concerning copper mining in Poland.
{"title":"ARCHAEOLOGICAL REMAINS OF THE COPPER METALLURGY IN LOWER SILESIA","authors":"A. Garbacz-Klempka, S. Rzadkosz, T. Stolarczyk, J. Kozana, M. Piękoś","doi":"10.7494/MAFE.2013.39.2.29","DOIUrl":"https://doi.org/10.7494/MAFE.2013.39.2.29","url":null,"abstract":"Many traces of copper metallurgy, such as slag and other copper melts, can be found in the area of Lower Silesia. The research programme, which assesses the exact location and detailed inventory of the sites connected with mining and copper smelting in the area of three historical regions of its exploitation, as well as testing of the collected material is implemented by the Copper Museum in Legnica, in collaboration with the Faculty of Foundry, at the University of Science and Technology. The tested material mainly consists of copper slag with different content of copper melts, being a semi product. The copper metallurgy remains, discovered during the research, undergo specialistic analyses, which will help better characterise the findings as well as contribute to documenting metallurgical processes in the historical bloomeries in Lower Silesia, and moreover to prepare further research in this field. The material coming from the area of Miedzianka, being the oldest and the longest working exploitation centre of copper ores and pollymetalic ores, is of special significance for the research. Mining activity in the area of Miedzianka took place as early as the beginning of the 14 th century, the first record from 1311 ( Cuprifodina in montubus) is the oldest information concerning copper mining in Poland.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"126 1","pages":"29"},"PeriodicalIF":0.0,"publicationDate":"2013-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86401856","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 : 2013-12-31DOI: 10.7494/MAFE.2013.39.2.23
A. Garbacz-Klempka, S. Rzadkosz, J. Górski
In cooperation with the Archaeological Museum in Krakow, an attempt has been made to examine the earliest traces of non-ferrous metal metallurgy and casting in present-day Krakow. The preparatory investigation has centred around a group of finds coming from a small section of the eastern part of the city, including the area of present-day Nowa Huta. The paper gives an overall view of objects ranging from the first copper artefacts from the territory of Poland in the 4th millennium BC through Lusatian bronzes and Celtic products to modern slag from Jan Thurzo’s copper smelter. The analysis, involving diverse copper or copper alloy artefacts, ornaments and tools – both imports and local products – has been aimed at preliminary identification of Krakow’s earliest metal artefacts in terms of their materials and methods of production, and at preparing the ground for further study. This multifaceted research is intended to result in a comparison of materials and techniques used in metallurgy and casting during the timespan of 5000 years.
{"title":"ARTEFACTS FROM KRAKOW-NOWA HUTA AS AN ILLUSTRATION OF SELECTED ISSUES OF RESEARCH INTO PREHISTORIC AND MEDIAEVAL CASTING","authors":"A. Garbacz-Klempka, S. Rzadkosz, J. Górski","doi":"10.7494/MAFE.2013.39.2.23","DOIUrl":"https://doi.org/10.7494/MAFE.2013.39.2.23","url":null,"abstract":"In cooperation with the Archaeological Museum in Krakow, an attempt has been made to examine the earliest traces of non-ferrous metal metallurgy and casting in present-day Krakow. The preparatory investigation has centred around a group of finds coming from a small section of the eastern part of the city, including the area of present-day Nowa Huta. The paper gives an overall view of objects ranging from the first copper artefacts from the territory of Poland in the 4th millennium BC through Lusatian bronzes and Celtic products to modern slag from Jan Thurzo’s copper smelter. The analysis, involving diverse copper or copper alloy artefacts, ornaments and tools – both imports and local products – has been aimed at preliminary identification of Krakow’s earliest metal artefacts in terms of their materials and methods of production, and at preparing the ground for further study. This multifaceted research is intended to result in a comparison of materials and techniques used in metallurgy and casting during the timespan of 5000 years.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"24 1","pages":"23"},"PeriodicalIF":0.0,"publicationDate":"2013-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75214010","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 : 2013-01-01DOI: 10.7494/MAFE.2013.39.1.43
D. Fydrych, J. Tomków, A. Świerczyńska
The presence of diffusible hydrogen in welded joints is one of the causes of formation the welding imperfections. Improvement of weldability can be achieved by reducing the hydrogen amount in welded joints. This requires, among others, the finding of sources of hydrogen. For high hydrogen processes the commonly used method of determining the diffusible hydrogen amount is the glycerin method. This paper concerns issues related to the test procedure and the possibility to control the diffusible hydrogen amount in deposited metal.
{"title":"DETERMINATION OF DIFFUSIBLE HYDROGEN CONTENT IN THE DEPOSITED METAL OF RUTILE ELECTRODES BY THE GLYCERIN METHOD","authors":"D. Fydrych, J. Tomków, A. Świerczyńska","doi":"10.7494/MAFE.2013.39.1.43","DOIUrl":"https://doi.org/10.7494/MAFE.2013.39.1.43","url":null,"abstract":"The presence of diffusible hydrogen in welded joints is one of the causes of formation the welding imperfections. Improvement of weldability can be achieved by reducing the hydrogen amount in welded joints. This requires, among others, the finding of sources of hydrogen. For high hydrogen processes the commonly used method of determining the diffusible hydrogen amount is the glycerin method. This paper concerns issues related to the test procedure and the possibility to control the diffusible hydrogen amount in deposited metal.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"33 1","pages":"43"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78345483","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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