锻造工艺及后续热处理对TC11钛合金组织与性能的影响  

Effects of Forging Process and Following Heat Treatment on Microstructure and Mechanical Properties of TC11 Titanium Alloy

作　　者：邓瑞刚[1,2] 杨冠军[2] 毛小南[2] 张鹏省[2] 韩栋[2] 张拓燕[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055 [2]西北有色金属研究院,西安710016

出　　处：《机械工程材料》2011年第11期58-61,77,共5页Materials For Mechanical Engineering

基　　金：国家"973"计划资助项目(2007CB613807)

摘　　要：分析了常规锻造和特种锻造及后续热处理对TC11钛合金组织和力学性能的影响。结果表明:终锻温度为950℃时,TC11钛合金经特种锻造得到网篮组织,其锻态及热处理后的性能均优于常规锻造的(等轴组织);终锻温度为950℃时,两种锻造方式得到的钛合金性能均优于980℃的(等轴组织);TC11钛合金经950℃特种锻造后再结合高温均匀化和双重退火处理,得到的片状编织组织可使材料获得良好的强韧性匹配。The effects of conventional forging, special forging and following heat treatment on microstructure and mechanical properties of TC11 titanium alloy were analyzed. The results show boasketweave microstructure could be obtained after TCll titanium alloys were forged by special forging at 950 ℃, and the mechanical properties of as-forged and as-heat-treated titaniun alloy were better than conventional forging （equiaxed microstructure）. For the two kinds forging, the mechanical properties of titanium alloy forged at 950 ℃ were better than that of at 980 ℃ （equiaxed microstructure）;Knitting structure which was obtained by special forging at 950 ℃ combined with high temperature hormogenizing teratiment and double annealing treatment showed good combination of strength and plasticity.

关 键 词：TC11钛合金 锻造工艺 显微组织 力学性能 

分 类 号：TG146.2[一般工业技术—材料科学与工程]