Hybrid Friction Stir Welding of High-carbon Steel
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2011年第2期
论文作者：Don-Hyun Choi Chang-Yong Lee Byung-Wook Ahn Jung-Hyun Choi Seung-Boo Jung
文章页码：127 - 130
摘 要：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 related with the lower cooling rate.
Don-Hyun Choi1，Chang-Yong Lee2，Byung-Wook Ahn1，Jung-Hyun Choi1，Seung-Boo Jung1
1. School of Advanced Materials Science and Engineering,Sungkyunkwan University 300 Cheoncheon-dong,Jangan-gu,Suwon,Gyeonggi-do 440-746,South Korea2. Department of Mechanical Engineering,Korea Advanced Institute of Science and Technology 335 Gwahangno,Yuseong-gu,Daejeon 305-701,South Korea
摘 要：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 related with the lower cooling rate.
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