Effect of WC and Mo<sub>2</sub>C Addition on Microhardness of Ti(C,N)-Based Cermets at High Temperature

WU Yuemei; ZHOU Liming; XIONG Ji; YE Junliu; WEN Bin

doi:10.11973/jxgccl201707005

Materials and Mechanical Engineering > 2017 > 41(7): 24-28,33. > DOI: 10.11973/jxgccl201707005

WU Yuemei, ZHOU Liming, XIONG Ji, YE Junliu, WEN Bin. Effect of WC and Mo₂C Addition on Microhardness of Ti(C,N)-Based Cermets at High Temperature[J]. Materials and Mechanical Engineering, 2017, 41(7): 24-28,33. DOI: 10.11973/jxgccl201707005

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Effect of WC and Mo₂C Addition on Microhardness of Ti(C,N)-Based Cermets at High Temperature

1. Chengdu Aeronautic Polytechnic, Chengdu 610100, China;
2. School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, China;
3. Chengdu Tungsten West Tool Co., Ltd., Chengdu 610100, China

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Received Date: August 08, 2016
Revised Date: May 17, 2017

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Abstract

Based on the similar effect of WC and Mo₂C addition on microstructure optimizing and wettability improvement of Ti(C,N)-based cermets, the microhardness of Ti(C,N)-based cermets with WC or Mo₂C addition was investigated at high temperature. The results show that the high-temperature microhardness of Ti(C,N)-based cermets with WC and Mo₂C addition both decreased with the increase of temperature. At 600-800℃, the high-temperature microhardness of cermets containing WC was slightly higher than that of cermets with Mo₂C and microhardness was almost the same at 900℃. The indentation area and average indentation depth of two cermets both increased with increase of temperature. The true strain of cermets with WC was significantly less than that of cermets with Mo₂C addition, but high-temperature deformations of two cermets were nearly close at 900℃.
- Ti(C,N)-based cermets,
- WC,
- Mo₂C,
- high temperature,
- microhardness

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Effect of WC and Mo2C Addition on Microhardness of Ti(C,N)-Based Cermets at High Temperature

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Effect of WC and Mo₂C Addition on Microhardness of Ti(C,N)-Based Cermets at High Temperature