Study on Production of Pre-alloyed Powders and Powder Metallurgy Processing of A Gamma Titanium Aluminide

摘要：

Pre-alloyed gamma titanium aluminide powders with composition of Ti-46Al-2Cr-2Nb+B+W (at ％) have been successfully produced by argon gas atomization. The characteristics of pre-alloyed gamma titanium aluminide powders have been investigated In addition,a gamma titanium alu-minides compact has been obtained by consolidating pre-alloyed powders by HIP,and given various heat treatments to gain full lamella and duplex microstructures. Room temperature tensile properties were test and microstructures were observed to the test pieces gained during heat treatment. The results showed that the pieces with duplex microstructures have a better elongation up to 3. 1 ％, resulting from a fined grain size.

关键词： Gamma titanium (Ti) aluminide pre-alloyed spherical powder powder metallurgy microstructures properties

作者: Lang Zebao Zhang Xuhu Shi Jinliang Wang Liang Jia Wenjun

作者单位: Aerospace Research Institute of Materials & Processing Technology,Beijing 100076, PR China

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 1579-1582

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）