{"title":"Interfacial microstructure and fractography of Ti6Al4V/5A05Al dissimilar joint using the cold arc MIG welding","authors":"S. Wei, W. Rao","doi":"10.4149/KM_2021_2_139","DOIUrl":"https://doi.org/10.4149/KM_2021_2_139","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"183 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74624405","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}
Zhang Geming, Liu Peng, Shi Qingyu, Xu Shubo, Li Jianing, Feng Keyun, Jing Cainian
{"title":"Study on dislocation and microstructural properties of friction stir welded joint for 2024-T4 aluminum alloys","authors":"Zhang Geming, Liu Peng, Shi Qingyu, Xu Shubo, Li Jianing, Feng Keyun, Jing Cainian","doi":"10.4149/km_2017_4_245","DOIUrl":"https://doi.org/10.4149/km_2017_4_245","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85027089","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}
{"title":"Brazing of alloys based on intermetallic phase Ni3Al","authors":"A. Winiowski, M. Różański","doi":"10.4149/km_2013_2_123","DOIUrl":"https://doi.org/10.4149/km_2013_2_123","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82058967","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}
{"title":"Corrosion failure and microstructure analysis of AISI 316L SS for shio pipeline before and after welding","authors":"S. Kožuh, M. Gojić, L. Vrasalovic, B. Ivkovic","doi":"10.4149/km_2013_1_53","DOIUrl":"https://doi.org/10.4149/km_2013_1_53","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82295405","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}
{"title":"Accumulative roll-bonding of aluminium sheets at room and cryogenic temperatures","authors":"M. Karlík, P. Homola, P. Sláma","doi":"10.4149/km_2021_4_209","DOIUrl":"https://doi.org/10.4149/km_2021_4_209","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75991934","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}
The deep rolling process is a mechanical surface treatment which plastically deforms only the surface and near-surface regions. The deep rolled AISI 304 austenitic stainless steel has been investigated to illustrate the near-surface plastic deformation effect on the aluminium diffusion rate in the low-temperature pack aluminizing process. Near-surface properties such as residual stresses and full width at half maximum (FWHM) values were measured using the X-ray diffractometer (XRD). The deep rolled, and non-deep rolled specimens were aluminized using powder pack method at the relatively low temperature of 550◦C for about 2–8 h. A scanning electron microscope (SEM) with energy dispersive X-ray spectrometer (EDS) and XRD were used to characterize the surface layers. It was found that the deep rolled condition shows the higher diffusion coefficient as compared to the non-deep rolled condition. Finally, it can be mentioned that the deep rolling process can enhance the diffusion rate of the pack aluminizing treatment at the temperature of 550◦C. K e y w o r d s: stainless steel, aluminizing, deep rolling, diffusion, mechanical surface treatment
{"title":"Diffusion enhancement of low-temperature pack aluminizing on austenitic stainless steel AISI 304 by deep rolling process","authors":"W. Yutanorm, P. Juijerm","doi":"10.4149/KM_2016_3_227","DOIUrl":"https://doi.org/10.4149/KM_2016_3_227","url":null,"abstract":"The deep rolling process is a mechanical surface treatment which plastically deforms only the surface and near-surface regions. The deep rolled AISI 304 austenitic stainless steel has been investigated to illustrate the near-surface plastic deformation effect on the aluminium diffusion rate in the low-temperature pack aluminizing process. Near-surface properties such as residual stresses and full width at half maximum (FWHM) values were measured using the X-ray diffractometer (XRD). The deep rolled, and non-deep rolled specimens were aluminized using powder pack method at the relatively low temperature of 550◦C for about 2–8 h. A scanning electron microscope (SEM) with energy dispersive X-ray spectrometer (EDS) and XRD were used to characterize the surface layers. It was found that the deep rolled condition shows the higher diffusion coefficient as compared to the non-deep rolled condition. Finally, it can be mentioned that the deep rolling process can enhance the diffusion rate of the pack aluminizing treatment at the temperature of 550◦C. K e y w o r d s: stainless steel, aluminizing, deep rolling, diffusion, mechanical surface treatment","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87046568","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}
Friction stir welding is a solid-state welding method for joining materials having the same or different properties at temperatures below their melting points. Generally, the welding parameters affect the microstructural and mechanical properties of welded specimens. In this study, AA5083 and AA5754 aluminium alloys were joined by friction stir welding at different tool rotation speeds of 450, 700, and 900 rpm, feed rates of 40, 50, and 80 mm min−1, and tilting angles of 0◦, 1◦, and 3◦ using a tapered stir pin. The effects of these welding parameters on the mechanical properties of the welded parts were examined by tensile and micro-hardness tests. Moreover, the welded joints were analysed using an optical microscope, scanning electron microscope, and energy dispersive X-ray spectroscopy. The results indicated that the specimen welded at 50 mmmin−1 feed rate, 450 rpm tool rotation speed, and a 1◦ tilting angle exhibited the highest welding strength and elongation values. K e y w o r d s: friction stir welding, aluminium alloys, microstructure, tensile strength, microhardness elongation
{"title":"Mechanical and microstructural properties of friction stir welded AA5083 and AA5754 aluminium alloys\u0000TOLUN, F.","authors":"F. Tolun","doi":"10.4149/km_2021_3_149","DOIUrl":"https://doi.org/10.4149/km_2021_3_149","url":null,"abstract":"Friction stir welding is a solid-state welding method for joining materials having the same or different properties at temperatures below their melting points. Generally, the welding parameters affect the microstructural and mechanical properties of welded specimens. In this study, AA5083 and AA5754 aluminium alloys were joined by friction stir welding at different tool rotation speeds of 450, 700, and 900 rpm, feed rates of 40, 50, and 80 mm min−1, and tilting angles of 0◦, 1◦, and 3◦ using a tapered stir pin. The effects of these welding parameters on the mechanical properties of the welded parts were examined by tensile and micro-hardness tests. Moreover, the welded joints were analysed using an optical microscope, scanning electron microscope, and energy dispersive X-ray spectroscopy. The results indicated that the specimen welded at 50 mmmin−1 feed rate, 450 rpm tool rotation speed, and a 1◦ tilting angle exhibited the highest welding strength and elongation values. K e y w o r d s: friction stir welding, aluminium alloys, microstructure, tensile strength, microhardness elongation","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"100 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91478491","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}
X. Jiang, C.J. Zhang, Zhi Lv, H. Feng, S.Z. Zhang, C. Wang
{"title":"Thermomechanical processing of a near-β titanium alloy and effects on microstructure and tensile properties","authors":"X. Jiang, C.J. Zhang, Zhi Lv, H. Feng, S.Z. Zhang, C. Wang","doi":"10.4149/km_2021_5_321","DOIUrl":"https://doi.org/10.4149/km_2021_5_321","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91490616","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}
The processing of metals by equal-channel angular pressing provides the capability of refining the grain size to the submicrometer or nanometer level. It is shown that this will influence the high temperature creep properties provided the ultrafine grains are reasonably stable at elevated temperatures. Examples are presented for high-purity aluminum where grain growth occurs easily and some aluminum-based alloys where grain growth is restricted through the presence of scandium additions. It is relatively easy to depict the creep behavior by plotting deformation mechanism maps. Two examples of these maps are presented for the Pb-62% Sn eutectic alloy and high-purity aluminum.
{"title":"Creep behavior of metals processed by equal-channel angular pressing","authors":"M. Kawasaki, V. Sklenička, T. Langdon","doi":"10.4149/KM-2011-1-75","DOIUrl":"https://doi.org/10.4149/KM-2011-1-75","url":null,"abstract":"The processing of metals by equal-channel angular pressing provides the capability of refining the grain size to the submicrometer or nanometer level. It is shown that this will influence the high temperature creep properties provided the ultrafine grains are reasonably stable at elevated temperatures. Examples are presented for high-purity aluminum where grain growth occurs easily and some aluminum-based alloys where grain growth is restricted through the presence of scandium additions. It is relatively easy to depict the creep behavior by plotting deformation mechanism maps. Two examples of these maps are presented for the Pb-62% Sn eutectic alloy and high-purity aluminum.","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"31 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91440092","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}
{"title":"Optimization of DLC films on oxynitriding-treated Vanadis 10 tool steel through the various duty cycles of DC-pulsed plasma-enhanced CVD","authors":"S. Chang, Y. Wen, K. Huang, C.-M. Liu","doi":"10.4149/KM_2021_2_109","DOIUrl":"https://doi.org/10.4149/KM_2021_2_109","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"1 1","pages":"109-118"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83021866","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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