IC10合金TLP扩散焊接头拉伸性能研究  

Tensile properties of TLP butt joint for IC10 alloy

作　　者：李菊[1] 侯金保[1] 张胜[1] 郭德伦[1] 

机构地区：[1]北京航空制造工程研究所航空焊接与连接技术航空科技重点实验室,100024

出　　处：《焊接》2015年第6期22-26,73-74,共5页Welding & Joining

摘　　要：TLP扩散焊技术是IC10合金涡轮导向器叶片关键制造工艺之一,TLP扩散焊接头性能直接影响着IC10合金涡轮导向器叶片的使用性能。钎焊工序是继TLP扩散焊工序之后叶片的又一制造工艺,TLP扩散焊对接接头性能及经历了钎焊工序的TLP扩散焊接头性能如何,是文中研究的重点内容。研究发现:IC10合金TLP扩散焊接头性能优良,对接接头横向室温屈服强度R_(p0.2)达到母材相应强度的98%,对接接头纵向室温屈服强度R_(p0.2)达到母材相应强度的89%;IC10合金TLP扩散焊对接接头横向高温抗拉强度达到母材相应强度的99%,对接接头纵向高温抗拉强度达到母材相应强度的98.6%。经历了钎焊循环的TLP扩散焊接头室温和高温拉伸强度均没有明显降低,与TLP扩散焊接头性能相当。TLP(transient liquid phase) diffusion bonding process was the key technology to manufacture the blade of turbine,the mechanical properties of TIP joint for IC10 alloy was the key parameter to influence the usage of blade.Brazing was the following process to make blade after TLP diffusion bonding process,the properties of TLP joint and TLP + brazed joint were mainly discussed in this paper.The results showed that the tensile properties of TLP joint for IC10 alloy are excellent,the transverse yield tensile strength of the joint at room temperature reach up to 98%that of IC10 alloy,and the longitudinal yield strength of the joint at room temperature reaches 89%that of IC10 alloy.The transverse ultimate strength at 1 000 ℃ of the TLP joint for IC10 alloy reaches 99%that of base material,and the longitudinal ultimate strength at 1 000℃ reached 98.6%that of IC10 alloy.The tensile properties at room temperature and that at 1 000 ℃ for TLP joint after undergoing the brazing process are not reduced evidently,nearly equivalent to the TLP joint without undergoing brazing process.

关 键 词：IC10合金 TLP扩散焊 钎焊 拉伸性能 

分 类 号：TG453[金属学及工艺—焊接]