MicrostructureandstrengthofbrazedjointsofTiB2cermettoTiAl-basedalloys

被引：2

作者：

李卓然

冯吉才

曹健

机构：

[1] State Key Laboratory of Advanced Welding Production Technology

[2] Harbin Institute of Technology

[3] Harbin

来源：

China Welding | 2003年 / 01期

关键词：

TiB; 2; cermet; TiAl; vacuum brazing; interface structure; strength;

D O I：

暂无

中图分类号：

TG457 [各种金属材料和构件的焊接];

学科分类号：

080201 ; 080503 ;

摘要：

In this study, TiB 2 cermet and TiAl based alloy are vacuum brazed successfully by using Ag Cu Ti filler metal. The microstructural analyses indicate that two reaction products, Ti(Cu, Al) 2 and Ag based solid solution (Ag(s.s)), are present in the brazing seam, and the interface structure of the brazed joint is TiB 2/TiB 2+ Ag(s.s) /Ag(s.s)+Ti(Cu, Al) 2/Ti(Cu, Al) 2/TiAl. The experimental results show that the shear strength of the brazed TiB 2/TiAl joints decreases as the brazing time increases at a definite brazing temperature. When the joint is brazed at 1 223 K for 5 min , a joint strength up to 173 MPa is achieved.

引用

页码：19 / 21

页数：3