中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 22 No. 3 March 2012 |
（State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China）
Abstract:The 7715D titanium alloy added with 2.1% Ta element, nominated as 2Ta, was successfully synthesized using common casting and hot-forging technology. Two kinds of heat treatments were adopted. The phase analysis was identified by XRD. The microstructures were observed by optical microscopy (OM) and scanning electron microscopy (SEM). Both room-temperature and high-temperature tensile properties were tested. The results show that the addition of Ta element plays an important role in the mechanical properties of 7715D titanium alloy, which strengths the alloy seriously.
Key words: titanium alloy; mechanical property; phase transformation
