Impulse pressuring diffusion bonding of titanium to 304 stainless steel using pure Ni interlayer

作     者：Fang-Li Wang Guang-Min Sheng Yong-Qiang Deng 

作者机构：College of Materials Science and EngineeringChongqing University 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2016年第35卷第4期

页      面：331-336页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 080201[工学-机械制造及其自动化] 

基　　金：financially supported by the National Natural Science Foundation of China(No.50675234) 

主　　题：Impulse pressuring diffusion bonding Titanium Stainless steel Ni interlayer 

摘      要：In the present study, impulse pressuring diffu- sion bonding technology （IPDB） was utilized between commercially pure titanium and 304 stainless steel （SS） using pure nickel （Ni） as interlayer metal. The interfacial microstructures of the bonded joints were investigated by scanning electron microscopy （SEM） and energy dispersive spectroscope （EDS） analyses. It is found that with the aid of the Ni interlayer, the interdiffusion and reaction between Ti and SS can be effectively restricted and robust joints can be obtained. Intermetallic compounds （IMCs） including Ti2Ni, TiNi, and TiNi3 are detected at the Ti/Ni interface; however, only Ni-Fe solid solution is found at the Ni/SS interface. The maximum tensile strength of 358 MPa is obtained by IPDB for 90 s and the fracture takes place along the Ti2Ni and TiNi phase upon tensile loading. The existence of cleavage pattern on the fracture surface indi- cates the brittle nature of the joints.