Fabrication, thermal stability and mechanical properties of novel (W_0.5Al_0.5)C_0.8–Co composite prepared by mechanical alloying and hot-pressing sintering

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• 作者：Zhuhui Qiao ; Xianfeng Ma ; Wei Zhao ; Huaguo Tang ; Shuguang Cai ; Bo Zhao
• 关键词：Novel cemented carbide ; (W_0.5Al_0.5)C_0.8– ; Co ; Hot-pressing sintering ; Mechanical properties
• 刊名：Journal of Alloys and Compounds
• 出版年：2008
• 出版时间：29 May 2008
• 年：2008
• 卷：456
• 期：1-2
• 页码：514-517
• 全文大小：523 K

文摘

A novel cemented carbides (W_0.5Al_0.5)C_0.8–Co with different cobalt contents were prepared by mechanical alloying and hot-pressing technique. Hot-pressing technique as a common technique was performed to fabricate the bulk bodies of the hard alloys. The novel cemented carbides have superior mechanical properties compared to WC–Co. The density, operating cost of the novel material were much lower than WC–Co. There is almost no η-phase in the (W_0.5Al_0.5)C_0.8–Co cemented carbides system although the carbon deficient get the value of 20 % , and successfully got the nanostructured rounded (W_0.5Al_0.5)C_0.8 particles.