Effect of interlayer on the mechanical properties of YG8 hard carbide/40Cr steel brazed joints  

作　　者：吴铭方 浦娟 陈健 

机构地区：[1]Provincial Key Laboratory of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003

出　　处：《China Welding》2009年第2期30-34,共5页中国焊接（英文版）

基　　金：This work was supported by Natural Science Foundation of Educational Office of Jiangsu Province （Grant No. 05KJB460029）.

摘　　要：The effects of Cu foil and Ni foil on the mechanical properties of YG8 hard carbide/4OCr steel brazed joints were investigated. The results show that both Cu foil and Ni foil were beneficial to decrease the residual stress and enhance the joint strength. Moreover, Ni foil exhibited the better impact on enhancing the joint strength relative to Cu foil. When Cu foil was used as interlayer material, the key factor to restrain the joint strength was the massive and quick dissolution of Cu. Therefore, in order to prevent the excessive dissolution of Cu foil, the process parameter should be controlled strictly in the brazing process.The effects of Cu foil and Ni foil on the mechanical properties of YG8 hard carbide/4OCr steel brazed joints were investigated. The results show that both Cu foil and Ni foil were beneficial to decrease the residual stress and enhance the joint strength. Moreover, Ni foil exhibited the better impact on enhancing the joint strength relative to Cu foil. When Cu foil was used as interlayer material, the key factor to restrain the joint strength was the massive and quick dissolution of Cu. Therefore, in order to prevent the excessive dissolution of Cu foil, the process parameter should be controlled strictly in the brazing process.

关 键 词：YG8 hard carbide 40Cr steel BRAZING INTERLAYER STRENGTH 

分 类 号：TG161[金属学及工艺—热处理] TG146.21[金属学及工艺—金属学]