Influence of Ni/Co binders and Mo2C on the microstructure evolution and mechanical properties of (Ti0.93W0.07)C–based cermets |
| |
| Authors: | Seyed Mahdi Rafiaei Abbas Bahrami Mohammadreza Shokouhimehr |
| |
| Affiliation: | 1. Department of Materials Science and Engineering, Golpayegan University of Technology, Golpayegan, Iran;2. Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156–83111, Iran;3. Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea |
| |
| Abstract: | 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?°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–xMo2C–Ni cermet increased ~ 9%, when nickel was partially substituted by cobalt. |
| |
| Keywords: | Cermet Binder Core–Rim Hardness Microstructure Toughness |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
