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Proceedings Paper

Effect of VC on W-Ti-Co ultrafine cemented carbides
Author(s): Chongcai Zhang; Bo Zeng; Feiou Wu; Zhiyong Sheng; Daocheng Luan
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Paper Abstract

The ultrafine WC-14wt%TiC-8wt%Co powders doped different vanadium carbide(VC) content with an average particle size of 270nm were prepared by 72 hours high-energy ball milling. The VC content ranged from 0wt% to 1wt%. The powder was cold isostatic pressed at 280MPa and vacuum sintered at 1380°C. The physical properties and the micrographs of samples were detected. The main conclusions were as follow: the coercivity and hardness increased and the density and Cobalt magnetic decreased with the content of VC increasing; the hardness of alloy with 0.8wt% VC reached 91.8HRA.When the content of VC was less than 0.6wt%, the transverse rupture strength (TRS) increased; the content surpassed 0.8wt%, the TRS was lower than the one without VC. The VC could inhibited the growth of WC grain and the average grain size of WC with 0.8wt% VC was 0.7μm.

Paper Details

Date Published: 24 May 2011
PDF: 8 pages
Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 79970P (24 May 2011); doi: 10.1117/12.888419
Show Author Affiliations
Chongcai Zhang, Xihua Univ. (China)
Bo Zeng, Xihua Univ. (China)
Feiou Wu, Xihua Univ. (China)
Zhiyong Sheng, Xihua Univ. (China)
Daocheng Luan, Xihua Univ. (China)

Published in SPIE Proceedings Vol. 7997:
Fourth International Seminar on Modern Cutting and Measurement Engineering
Jiezhi Xin; Lianqing Zhu; Zhongyu Wang, Editor(s)

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