Densification and Properties of Ti-5Al-2.5Sn Alloy from Atomized Powder
Net shape process from prealloyed powder has become a viable approach to manufacture high-performance, complex shaped titanium alloy components. In this work densification of Ti-5Al-2. 5Sn powder compacts in mild steel containers by means of hot isostatic pressing was studied. Due to the shielding effect of the container, inhomogeneous deformation of Ti-5Al-2. 5Sn powder compacts was observed during the experiment and this was also predicted by a finite element analysis. The mechanical properties of powder metallurgy (PM) Ti-5Al-2. 5Sn alloy of different density were compared. Near-net-shape forming processes of PM titanium alloy parts are studied. By using metal capsules and metal internal tooling, near-net-shaping of PM parts with complex shapes was demonstrated. The design of capsules and tooling was found very important because of the different shrinkage ratio of the differently shaped regions of the component.
Densification Ti-5Al-2.5Sn powder metallurgy nearnet-shape
Lei Xu Jun Wu Yuyin Liu Jiafeng Lei Rui Yang
Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1835-1838
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）