高强高韧钛合金研究与应用进展  

Research and Application of High Strength and High Toughness Titanium Alloys

作　　者：杨冬雨[1] 付艳艳[2] 惠松骁[2] 叶文君[2] 于洋[2] 梁恩泉[1] 

机构地区：[1]上海飞机设计研究院标准材料设计部,上海200232 [2]北京有色金属研究总院有色金属材料制备加工国家重点实验室,北京100088

出　　处：《稀有金属》2011年第4期575-580,共6页Chinese Journal of Rare Metals

基　　金：国家科技部中韩联合研究项目(2010DFA52280)资助

摘　　要：航空航天业的发展对高强度、高断裂韧性的新型钛合金的需求越来越迫切,研究具有自主知识产权并用于航空大型结构件的新型高强高韧钛合金得到世界各国的重视。综合评述了国外传统的Ti-1023、BT22合金、β-21S合金、β-C合金,新型Timetal555和VST55531合金以及我国的TB2和TB10合金等7种高强高韧钛合金研究及应用现状,分析了合金的成分、组织、强度、塑性、断裂韧性等特点。根据国内外高强高韧钛合金发展现状,提出发展方向:研制Rm≥1300 MPa,KIC≥55 Pa·m1/2新型高强韧钛合金;新型合金成分应以Ti-Al-Mo-V-Cr系为主;探索加工工艺与高强高韧钛合金合金组织及性能的关系;发展具有优异的淬透性及良好的锻造性能为主的大型锻件用高强高韧钛合金。With the continuous development of the aerospace industry,the demand of new high strength and fracture toughness titanium alloy would grow increasingly.The research on new high strength and tough titanium alloy of intellectual property rights,which was applied to large structures of aerospace,aroused the interest of the world.The present development on the investigation of high strength and toughness titanium alloys was introduced,including traditional foreign Ti-1023,BT22,β-21S,β-C,new type Timetal555,VST55531 and domestic TB2 and TB10 alloys.Meanwhile,the characteristics of components,structures,strength,plasticity and fracture toughness were analyzed.Based on the development of these titanium alloys,the author′s opinions about development trend in this field were also presented： to develop a new high-strength and toughness titanium alloy with Rm≥1300 MPa,KIC≥55 Pa·m1/2;the components of new alloy should be based on Ti-Al-Mo-V-Cr series alloy;to probe into the relationship between processing technology and microstructure and properties of high strength and toughness titanium alloy;to develop the high strength and toughness titanium alloy with excellent hardenability and good forgeability that were used as heavy forgings.

关 键 词：钛合金 高强 高韧 锻件 

分 类 号：TG146.2[一般工业技术—材料科学与工程]