|
|
|
| Microstructure and mechanical properties of W-Re-HfC alloy which fabricated by spark plasma sintering |
| LIN Xiao-hui, LI Lai-ping, LIANG Jing, XUE Jian-rong, LI Yan-chao, ZHANG Xin |
| Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China |
|
|
|
|
Abstract W-Re-HfC alloys with different HfC contents (1%, 5%, 10%, mass present) were fabricated by spark plasma sintering. The microstructure, room temperature compression properties and fracture toughness of W-Re-HfC alloys were observed and measured respectively. The results showed that with the increasing of HfC content, the relative density of sinter W-Re-HfC alloys decreased slightly, HfC particles are dispersively distributed within the grains and along with the grain boundary which refine the grain size apparently. The room temperature compression strength and fracture toughness of W-Re-HfC alloys were dramatically improved with increasing of HfC content, when the content of HfC from 1% up to 10%, the room temperature compression strength of alloy improved 80%. The W-Re-HfC alloys present a optimal compression deformability when the content of HfC was 5%.
|
|
Received: 21 February 2019
|
|
|
|
|
|
|
2019, Vol. 29 
