Influence of Ni/Co binders and Mo2C on the microstructure evolution and mechanical properties of (Ti0.93W0.07)C-based cermets

被引：34
作者：
Rafiaei, Seyed Mahdi [1 ]
Bahrami, Abbas [2 ]
Shokouhimehr, Mohammadreza [3 ]
机构：
[1] Gokayegan Univ Technol, Dept Mat Sci & Engn, Golpayegan, Iran
[2] Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415683111, Iran
[3] Seoul Natl Univ, Dept Mat Sci & Engn, Res Inst Adv Mat, Seoul 08826, South Korea
来源：
CERAMICS INTERNATIONAL | 2018年 / 44卷 / 15期
关键词：
Cermet; Binder; Core-Rim; Hardness; Microstructure; Toughness; TIC-BASED CERMETS; LUMINESCENCE PROPERTIES; TI(C; N)-BASED CERMETS; CUTTING-TOOL; NANOSTRUCTURE; WEAR;
D O I：
10.1016/j.ceramint.2018.06.227
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this research, solid-solution powder of (Ti0.93W0.07)C was synthesized by high-energy ball mill method followed by carbothermal reduction process. Subsequently, the acquired powder was blended with Ni/Co and Mo2C secondary carbide, and sintered under the optimized temperature (1510 degrees C) for 1 h to produce the modulated cermets. A typical core-rim structure formation with solid-solution phases was confirmed by backscattered electrons studies using a Field Emission electron scanning microscope. The hardness of the synthesized cermets was enhanced by increasing the specific amount of Mo2C. The acquired results demonstrate that the binder type has a prominent influence on the microstructure and hardness of the prepared cermets. The hardness of (Ti0.93W0.07)C-xMo(2)C-Ni cermet increased similar to 9%, when nickel was partially substituted by cobalt.
引用
收藏
页码：17655 / 17659
页数：5
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