Feasibility of surface-coated friction stir welding tools to join AISI 304grade austenitic stainless steel  

作　　者：A.K.LAKSHMINARAYANAN C.S.RAMACHANDRAN V.BALASUBRAMANIAN 

机构地区：[1]Department of Mechanical Engineering, SSN College of Engineering, Kalavakkam, 603 110, Chennai, Tamil Nadu, India [2]Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar,608 002,Tamil Nadu, India

出　　处：《Defence Technology（防务技术）》2014年第4期360-370,共11页Defence Technology

基　　金：the Department of Science and Technology (DST), Government of India for the financial support through Fast Track Scheme for Young Scientists R&D project (SR/FTP/ETA043/2009) to carry out this investigation

摘　　要：An attempt is made to develop the tools that are capable enough to withstand the shear, impact and thermal forces that occur during friction stir welding of stainless steels. The atmospheric plasma spray and plasma transferred arc hardfacing processes are employed to deposit refractory ceramic based composite coatings on the Inconel 738 alloy. Five different combinations of self-fluxing alloy powder and 60% ceramic reinforcement particulate mixtures are used for coating. The best friction stir welding tool selected based on tool wear analysis is used to fabricate the austenitic stainless steel joints.An attempt is made to develop the tools that are capable enough to withstand the shear, impact and thermal forces that occur during friction stir welding of stainless steels. The atmospheric plasma spray and plasma transferred arc hardfacing processes are employed to deposit refractory ceramic based composite coatings on the Inconel 738 alloy. Five different combinations of self-fluxing alloy powder and 60% ceramic rein- forcement particulate mixtures are used for coating. The best friction stir welding tool selected based on tool wear analysis is used to fabricate the austenitic stainless steel joints.

关 键 词：摩擦搅拌焊接 304不锈钢 奥氏体不锈钢 焊接工具 AISI 表面涂层 大气等离子喷涂 自熔性合金粉末 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TG453.9[金属学及工艺—金属学]