热处理工艺对Ti-15-3合金热轧棒材显微组织与力学性能的影响  

Effect of Heat Treatment on Microstructure and Mechanical Property of Ti-15-3 Hot-rolled Bars

作　　者：纪仁峰[1] 闵新华[1] 胡弘剑[1] 马天军[1] 

机构地区：[1]宝山钢铁股份有限公司,上海200940

出　　处：《稀有金属与硬质合金》2010年第2期49-52,共4页Rare Metals and Cemented Carbides

摘　　要：通过金相显微镜、透射电镜观察及拉伸试验,研究了不同固溶及时效处理工艺对Ti-15-3合金热轧棒材微观组织和力学性能的影响。结果表明:Ti-15-3合金的晶粒尺寸随固溶温度的升高而长大迅速,合金的强度随固溶时间的延长而降低,且以2#工艺合金的综合性能较好;合金时效后的强度主要取决于α相的尺寸及其体积分数的综合效应,且以10#工艺合金的组织和力学性能较为理想。Effects of different solution and ageing treatment on the microstructure and mechanical property of Ti-15-3 alloy barsthrough metalloscope,TEM and electron tensile test.The results show that the grain size of alloy Ti-15-3 grows rapidly with higher solution temperature and the strength of the alloy decreases with longer solution duration.Compared with various solution processes,the over-all property of 2# process alloy is better.The strength of aged alloy mainly depends on the synthetic effect of grain size of phase α and its volume fraction.Compared with various aging processes,the microstructure and mechanic property of 10# aged process alloy is more satisfactory.

关 键 词：Ti-15-3钛合金 热处理工艺 显微组织 力学性能 

分 类 号：TG166.5[金属学及工艺—热处理]