FRICTION WELDING OF HIGH-NB TIAL ALLOY AND 40CR STEEL RODS
High-Nb TiAl alloy and 40Cr steel rods were welded together using friction welding method.The microstructure and microhardness distribution of the interface of the welded joint were investigated.The tensile strengths of the welded joints in as-welded and in annealing state were determined.The results indicated that the friction welding is an effective method for achieving the solid joint between high-Nb TiAl alloy and 40Cr steel.The tensile strength of as-welded joint reached about 150MPa,and fracture occurred at the interface.However,after annealing at 500℃for 10h,the tensile strength of the joint reached about 400MPa,and fracture occurred on the high-Nb TiAl alloy side.The microhardness at the welded interface was much higher than those of the 40Cr steel and high-Nb TiAl alloy in as-welded state.
High-Nb TiAl alloy 40Cr steel friction welding microstructure mechanical properties
Xin Wang Minghao Liang Dayong Lu
Key Laboratory for Special Functional Materials in Jilin Provincial Universities,Jilin Institute of Chemical Technology Chengde Street 45,Jilin 132022,China
国际会议
吉林
英文
262-264
2018-06-23（万方平台首次上网日期，不代表论文的发表时间）