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热处理对Ti2AlNb/Ti60双合金接头组织及性能的影响
英文标题:Effects of heat treatment on microstructure and mechanical properties for joint of Ti2AlNb/Ti60 dual alloys
作者:郭凡 郭鸿镇 姚泽坤 田宏杰 赵张龙 
单位:西北工业大学 
关键词:Ti2AlNb/Ti60双合金 热处理 显微组织 力学性能 
分类号:TG166.5
出版年,卷(期):页码:2013,38(3):137-140
摘要:

以连接加变形后的Ti2AlNb/Ti60双合金为对象,研究锻后不同热处理制度对双合金接头显微组织和力学性能的影响。结果表明:热处理制度对Ti60合金侧热影响区的相组成影响较小,但对相的形态、尺寸和数量具有一定的影响;随着固溶温度的升高或固溶时间的延长,双合金试样的强度增加,塑性下降;经过990℃/1h+750℃/4h热处理后的Ti2AlNb/Ti60双合金焊缝组织得到优化,强度和塑性均高于Ti60合金基体,双合金试样在室温及600℃高温均表现出较好的强度与塑性匹配。
 

Effects of different heat treatment schemes on microstructure and mechanical properties for weld joint of Ti2AlNb/Ti60 dual alloys after connecting and forging were investigated. The results show that: heat treatment schemes play a small role in phase composition of heat-affected zone of Ti60 alloy, but a large role in phase morphology, size and amount; along with the increase of solution temperature or solution time, the strength of the sample increases while the plastic decreases;microstructure of weld joint of Ti2AlNb/Ti60 dual alloys is optimized after the heat treatment scheme 990℃/1h+750℃/4h, and the strength and the plastic are higher than that of Ti60 alloy, and good strength and plastic matching at room temperature or 600℃ high temperature are showed in Ti2AlNb/Ti60 dual alloys.

基金项目:
国家自然科学基金资助项目(51175431)
作者简介:
参考文献:


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