Effect of intermetallic compounds on heat resistance of hot roll bonded titanium alloy-stainless steel transition joint

被引：10
|
作者：
Zhao, Dong-sheng [1 ]
Yan, Jiu-chun [2 ]
Liu, Yu-jun [1 ]
机构：
[1] Dalian Univ Technol, Sch Naval Architecture, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China
[2] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2013年 / 23卷 / 07期
关键词：
intermetallics; titanium alloy; stainless steel; transition joint; heat resistance; heat treatment; hot roll bonding; INTERFACE MICROSTRUCTURE; STRENGTH PROPERTIES; INTERLAYER; COMPOSITE;
D O I：
10.1016/S1003-6326(13)62684-9
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of intermetallic compounds on the heat resistance of transition joint was investigated. The experiment of post-weld heat treatment for the hot roll bonded titanium alloy stainless steel joint using nickels interlayer was carried out, and the interface microstructure evolution due to heat treatment was presented. There was not found significant interdiffusion at stainless steel/nickel interface, when the specimens were heat treated in the temperature range of 600-800 degrees C for 10 and 30 min, while micro-cracks occurred at the stainless steel/nickel interface heat treated at 700 degrees C for 30 min. The thickness of intermetallic layers at nickel/titanium alloy interface increased at 600 degrees C, and micro-cracks occurred at 700 and 800 degrees C. The micro-cracks occurred between intermetallic layers or between intermetallic layer and nickel interlayer as well. The tensile strength of the transition joint decreased with the increase of heat treatment temperature or holding time.
引用
收藏
页码：1966 / 1970
页数：5
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