Effect of Cr3C2 on microstructures and properties of WC-6Co cemented carbides prepared by SPS

被引：0
|
作者：
Zhang X.-H. [1 ]
Huang Z. [1 ]
Xu C. [1 ]
Li X.-X. [1 ]
Cai Z.-Y. [1 ]
Chen H. [1 ]
机构：
[1] School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou
来源：
Chen, Hao (chenhao_168@163.com) | 2017年 / Central South University of Technology卷 / 27期
基金：
中国国家自然科学基金;
关键词：
Corrosion resistance; Mechanical property; Microstructure; WC-6Co cemented carbide;
D O I：
10.19476/j.ysxb.1004.0609.2017.08.06
中图分类号：
学科分类号：
摘要：
The WC-6Co cemented carbides with various contents of grain growth inhibitors Cr3C2 were fabricated by spark plasma sintering (SPS). The effects of Cr3C2 amount on the microstructures and performances of the cemented carbides were investigated by SEM, EDS, mechanical property tester, wear testing machine and electrochemical workstation. The results show that, with increasing the amount of Cr3C2 in the cemented carbides, the abnormal growth of WC grains disappears and homogeneous submicron-grained microstructure forms. At the same time, the addition of Cr3C2 can obviously improve the mechanical properties, wear performance and corrosion resistance of the alloys. When the Cr3C2 addition is 0.45%, the comprehensive performances of the alloy are the best. The hardness is 1933 HV30 and fracture toughness is 12.5 MPa∙m1/2. © 2017, Science Press. All right reserved.
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页码：1580 / 1588
页数：8
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