Influence of Mo on the microstructure and mechanical properties of TiC-based cermets |
| |
Authors: | Xingqing Wang Xiaoxiang He Hailiang Guo |
| |
Affiliation: | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
| |
Abstract: | The microstructures and mechanics properties of TiC-based cermets composed of TiC, WC, Ni, Co, Mo, and Cr3C2 were investigated. The results show that Mo has a great effect on the sintering densification, microstructures, and mechanical
properties. The microstructures and distribution of Mo and Ti in the TiC-based cermets were analyzed. It was indicated that
a new phase with Ti, Mo, W, and C was formed on the rim of (Ti,W)C grains by means of an addition of Mo into the TiC-based
cermets. The new phase with a surrounding structure was of great aid to improve the wettability of the liquid phase on the
solid phase surface of TiC, decrease the porosity and refine the grains of the hard phase, which gave rise to the increase
in strength and hardness. The properties of the TiC-based cermets could be further improved to some extent by adding WC, Cr2C3, and Co. |
| |
Keywords: | TiC-based eermets Mo effect sintering densification microstructure mechanical properties |
本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录! |
|