Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1604268 | International Journal of Refractory Metals and Hard Materials | 2010 | 4 Pages |
Abstract
A powder metallurgical technology of low temperature and pressureless is used to fabricate a W-20wt.%Ti alloy using milled TiH2 powders and micro-sized W powders. The microstructure of the milled TiH2 powders and the bulk W–Ti alloy were studied. It is indicated that TiH2 nanoparticles with the size of 8 to 15 nm were obtained after milling for 48 h and the decomposition temperature decreased from 520.2 °C to 395.5 °C. The W-20wt.%Ti alloy prepared at 1200 °C for 80 min had a relative density of 97.8% which was composed of α-Ti, W and β(W/Ti) solid solution. A preparation mechanism of the W–Ti alloy is also proposed based on the experimental results.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Wang Qingxiang, Liang Shuhua, Fan Zhikang, Chen Xin,