热处理对铝-钛-钢过渡接头性能的影响

详细信息

Effect of Heat Treatment on Mechanical Behavior of Al/Ti/B-steel Transition Joint

摘要: 研究了热处理对铝-钛-钢（3A21/TA1/B）过渡接头的力学性能、界面组织及界面成分的影响。结果表明，焊接界面温度低于350℃时，铝-钛-钢过渡接头力学性能与爆炸态的相当；超过350℃临界温度时，界面铝侧3A21铝合金组织发生再结晶和晶粒长大而使力学性能开始下降。因此，铝-钛-钢过渡接头现场焊接施工过程中应控制铝-钛界面温度不超过350℃，以保证过渡接头的良好性能。
- 爆炸复合 /
- 过渡接头 /
- 热处理 /
- 临界温度 /
- 力学性能
Abstract: The effects of heat treatment at different temperatures on mechanical behaviors, microstructure and interface compositions of explosive welded Al/Ti/B-steel transition joint(3 A21/TA1/B) were investigated. The results show that when the interface temperature is lower than 350℃, the mechanical properties of the joint heat treated is similar to that of the joint without heat treatment. When it is higher than the critical temperature of 350℃, the microstructure in the Al side of the 3 A21 titanium alloy recrystallizes, and the grain grows, resulting in the performance reduction. Therefore, to ensure the good performance of the joint, the heating temperature of transition joint Al-Ti interface should be kept below 350℃.
- explosive welding /
- Al/Ti/steel transition joint /
- heat treatment /
- critical temperature /
- mechanical performance