粉末冶金Ti-3Al-5Mo-4.5V(TC16)合金的制备与力学性能  

Preparation and mechanical property of powder metallurgy Ti-3Al-5Mo-4.5V(TC16) alloy

作　　者：向泽阳 许荣君 刘彬[1] 刘咏[1] XIANG Zeyang;XU Rongjun;LIU Bin;LIU Yong(State Key Lab of Powder Metallurgy,Central South University,Changsha 410083,China)

机构地区：[1]中南大学粉末冶金国家重点实验室,长沙410083

出　　处：《粉末冶金材料科学与工程》2018年第5期534-538,共5页Materials Science and Engineering of Powder Metallurgy

基　　金：国家重点研发计划资助项目(2014CB644002);湖南省自然科学基金资助项目(2017JJ2311)

摘　　要：以Ti粉、Al-V合金粉及Mo粉为原料,通过冷等静压和真空烧结制备Ti-3Al-5Mo-4.5V(TC16)合金,并对该合金的组织与力学性能进行研究。结果表明,粉末冶金TC16合金具有由α相和β相组成的网篮组织,相对密度约为93.5%,抗拉强度、屈服强度和伸长率分别为1062 MPa,973 MPa和2.3%,关键性能(屈服强度)达到铸造TC16合金水平。Ti-3Al-5Mo-4.5V(TC16)alloy was prepared by powder metallurgy(PM)process with Ti powder,Al-V alloy powder and Mo powder as raw materials.The microstructure and mechanical properties of the powder metallurgy TC16 alloy were studied.The results show that the powder metallurgy TC16 alloys have a basketweave microstructure composed ofαphase andβphase.The powder metallurgy TC16 alloy with the relative density of 93.5%,the tensile strength of 1 062 MPa,the yield strength of 973 MPa and the uniform elongation of 2.3%is obtained,in which the yield strength reachs the level of casted TC16 alloy.

关 键 词：粉末冶金 钛合金 相对密度 微观组织 力学性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程]