Effect of W content in solid solution on properties and microstructure of (Ti,W)C-Ni3Al cermets

被引：23
|
作者：
Huang, Bin [1 ]
Xiong, Weihao [1 ]
Zhang, Man [1 ]
Jing, Yong [1 ]
Li, Baolong [1 ]
Luo, Haifeng [1 ]
Wang, Shengqing [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 676卷
关键词：
Solid solution based cermets; W content; Carbothermal reduction; Wettability; Valence-electron configurations; MECHANICAL-PROPERTIES; MO ADDITION; WETTABILITY; COMPOSITES; NI3AL;
D O I：
10.1016/j.jallcom.2016.03.073
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
(Ti1-xWx)C solid solutions (x = 0.05, 0.15, 0.25, 0.35) were synthesized by carbothermal reduction and then were used as hard phases to prepare (Ti,W)C-Ni3Al cermets by vacuum sintering. (Ti,W)C-Ni3Al cermets showed weak core-rim structure carbide particles embedded in Ni3Al binder. As W content in (Ti, W) C increased, core-rim structure of carbide particles got weaker and the contrast of particles lowered down in SEM-BSE morphologies. Furthermore, the densification of cermets was promoted with W content in solid solution increasing, meanwhile TRS and toughness of cermets were improved obviously. In this paper, the wettability of molten metal on different group transition metal carbides was discussed in detail based on valence-electron configurations (VECs) of carbides. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：142 / 149
页数：8
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