中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 21 No. 6 June 2011 |
powder metallurgy Ti-Al-Mo-V-Ag alloy
（State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China）
Abstract:The Ti-Al-Mo-V-Ag α+β alloys were processed by powder metallurgy (PM) using the blended elemental (BE) technique. The effects of Ag addition and sintering temperature on microstructure and properties of the Ti-5Al-4Mo-4V alloys were investigated using X-ray diffraction, optical microscope, scanning electron microscope and mechanical properties tests. The results show that adding Ag element increases the relative density and improves the mechanical properties of PM Ti-5Al-4Mo-4V alloy. After sintering at 1 250 °C for 4 h, the relative density and compression strength of Ti-5Al-4Mo-4V-5Ag alloy are 96.3% and 1 656 MPa, respectively.
Key words: titanium alloys; powder metallurgy (PM); Ag; microstructure; mechanical properties
