Hybrid Friction Stir Welding of High-carbon Steel |
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| Authors: | Don-Hyun Choi ) Chang-Yong Lee ) Byung-Wook Ahn ) Jung-Hyun Choi ) Yun-Mo Yeon ) Keun Song ) Seung-Gab Hong ) Won-Bae Lee ) Ki-Bong Kang ) Seung-Boo Jung ) ) School of Advanced Materials Science Engineering Sungkyunkwan University Cheoncheon-dong Jangan-gu Suwon Gyeonggi-do - South Korea ) |
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| Affiliation: | Don-Hyun Choi 1),Chang-Yong Lee 2),Byung-Wook Ahn 1),Jung-Hyun Choi 1),Yun-Mo Yeon 3),Keun Song 3),Seung-Gab Hong 4),Won-Bae Lee 4),Ki-Bong Kang 4) and Seung-Boo Jung 1) 1) School of Advanced Materials Science and Engineering,Sungkyunkwan University,300 Cheoncheon-dong,Jangan-gu,Suwon,Gyeonggi-do 440-746,South Korea 2) Department of Mechanical Engineering,Korea Advanced Institute of Science and Technology,335 Gwahangno,Yuseong-gu,Daejeon 305-701,South Korea 3) Department of Advanced Materials Application,Su... |
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| Abstract: | A high-carbon steel joint,SK5(0.84 wt% C),was successfully welded by friction stir welding(FSW),both without and with a gas torch,in order to control the cooling rate during welding.After welding,the weld zone comprised gray and black regions,corresponding to microstructural variation:a martensite structure and a duplex structure of ferrite and cementite,respectively.The volume fraction of the martensite structure and the Vickers hardness in the welds were decreased with the using of the gas torch,which was... |
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| Keywords: | Friction stir welding High-carbon steel Transformation Martensite |
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