Effect of TiCN Addition on Properties of WC-Co Cemented Carbide

LIAO Cong; GONG Manfeng; LI Mingsheng; LI Man

doi:10.11973/jxgccl201806016

Materials and Mechanical Engineering > 2018 > 42(6): 78-82. > DOI: 10.11973/jxgccl201806016

LIAO Cong, GONG Manfeng, LI Mingsheng, LI Man. Effect of TiCN Addition on Properties of WC-Co Cemented Carbide[J]. Materials and Mechanical Engineering, 2018, 42(6): 78-82. DOI: 10.11973/jxgccl201806016

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Effect of TiCN Addition on Properties of WC-Co Cemented Carbide

School of Mechatronic Engineering, Lingnan Normal University, Zhanjiang 524048, China

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Received Date: April 24, 2017
Revised Date: May 09, 2018

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Abstract

WC-Co cemented carbides were prepared by powder metallurgy and high temperature liquid sintering with TiCN content of 0,0.5wt%,1.0wt%,1.5wt%,2.0wt%, respectively. The effects of TiCN content on the micromorphology, densification performance and mechanical properties of the cemented carbide were studied. The results show that when TiCN content was no more than 1.0wt%, the grain size of the cemented carbide distributed evenly and less defects such as holes, microcracks and impurity segregation were observed; when higher than 1.0wt%, the amount of defects increased and the size bacame larger. With the increase of TiCN content, the densification performance of the cemented carbide decreased; the Vickers hardness increased and then decreased; the bending strength and fracture toughness first decreased then increased slightly and then decreased. When the TiCN content was 1.0wt%, the comprehensive performance of the cemented carbide was the best.
- TiCN,
- WC-Co cemented carbide,
- liquid sintering,
- mechanical property

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