Effects of NbC/VC Addition on Mechanical Properties of Ultrafine Grained Cemented Carbides

Abstract:

The samples are prepared by vacuum sintering technology, and the effects of VC/NbC combined addition on the mechanical properties of the WC-8% Co alloys with superfine grain are investigated. The results show that: with the transformation of Co-doped inhibitors content, the grain growth is inhibited and the grain size 460nm at 0.4%NbC/0.4%VC. The mechanism that Co-doped NbC/VC on the effective reduction of ultrafine WC-8%Co cemented carbides was analyzed. The 0.4%NbC/0.4%VC addition equipped with the best integrated properties was obtained in this study. And sintered sample were investigated with SEM.

• Periodical: Applied Mechanics and Materials (Volumes 602-605)
• Pages: 420-423
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.602-605.420
• Online since: August 2014
• Authors: Ai Min Jiang, Xian Quan Jiang, Zi Peng Zhao, Jin Yang*, Rong Yu
• Keywords: Alloy, Grain Growth Inhibitor Application, Superfine Grain

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