A two-step transient liquid phase diffusion bonding process of T91 steels

查看全文 作　　者：[1]陈思杰;[2]唐恒娟;[1]赵丕锋

机构地区：[1]School of Materials Science & Engineering,Henan Polytechnic University;[2]School of Electrical Engineering and Automation,Henan Polytechnic University

出　　处：《China Welding》索引2017年第26卷第2期,共6页

基　　金：supported by the Natural Science Foundation of Henan Province(Grant No.152107000047) 摘　　要：In this study,a two-step heating process is introduced for transient liquid phase( TLP) diffusion bonding for sound joints with T91 heat resistant steels. At first,a short-time higher temperature heating step is addressed to melt the interlayer,followed by the second step to complete isothermal solidification at a low temperature. The most critical feature of our new method is producing a non-planar interface at the T91 heat resistant steels joint. We propose a transitional liquid phase bonding of T91 heat resistant steels by this approach. Since joint microstructures have been studied,we tested the tensile strength to assess joint mechanical property. The result indicates that the solidified bond may contain a primary solid-solution,similar composition to the parent metal and free from precipitates. Joint tensile strength of the joint is not lower than parent materials. Joint bend's strengths are enhanced due to the higher metal-to-metal junction producing a non-planar bond lines.Nevertheless,the traditional transient liquid phase diffusion bonding produces planar ones. Bonding parameters of new process are 1 260 ℃ for 0.5 min and 1 230 ℃ for 4 min. 关键词：液相扩散焊 T91钢工艺焊接接头瞬时等温凝固耐热钢非平面

相关文献

参考文献（10）
引证文献（4）
耦合文献（0）

参考文献(10)

引证文献(4)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

A two-step transient liquid phase diffusion bonding process of T91 steels

参考文献(10)

引证文献(4)

用户提示