氢化钛粉烧结Ti-6Al-4V性能研究  

The Performance Study on Ti-6Al-4V Sintered by Titanium Hydride Powder

作　　者：尚青亮[1] 刘捷[1] 张玮[1] 方树铭[1] 

机构地区：[1]昆明冶金研究院,云南昆明650031

出　　处：《云南冶金》2015年第1期57-59,70,共4页Yunnan Metallurgy

基　　金：国际合作项目(2009DFB50410);云南省重大科技专项--新材料(2012ZE008)

摘　　要：研究了以氢化钛粉与铝钒合金粉为原料,在冷等静压机压制成型后分别采用真空烧结和气氛烧结制备Ti-6Al-4V合金,并对制备的Ti-6Al-4V合金进行相对密度、微观组织及力学性能进行分析。结果表明：在真空条件或气氛条件下烧结制备Ti-6Al-4V合金的相对密度均大于98%,力学性能满足ASTM B348要求;与真空烧结相比,气氛烧结制备的Ti-6Al-4V合金晶粒尺寸较小,力学性能在真空烧结的基础上提高了8%~10%。Ti-6A1-4V alloy is prepared separately by vacuum sintefing and atmosphere sintefing with the compacted raw materi- al titanium hydride powder and aluminum vanadium alloy powder in cold isostatic press ; and the relative density, microscopic structure and mechanical properties of the prepared alloy are analyzed. The results show： in the vacuum or atmosphere condition, the relative density of the sintefing prepared-alloy is more than 98%, the mechanical properties can meet the requirements of ASTM B348 ; comparing with the vacuum sintering, the grain size of-alloy prepared by atmosphere sintering is small, its mechanical properties improved 8 - 10% over than vacuum sintering.

关 键 词：氢化钛粉 烧结 相对密度 微观组织 力学性能 

分 类 号：TF124.53[冶金工程—粉末冶金]