硬质合金气氛烧结过程中碳含量调整  

The study of adjustment of carbon content in atmosphere sintering of cemented carbides

作　　者：肖仲文[1] 杨慧敏[1] 白佳声[1] 

机构地区：[1]上海材料研究所,上海200433

出　　处：《硬质合金》2003年第4期204-207,共4页Cemented Carbides

摘　　要：阐明了碳含量对硬质合金质量控制的重要性以及国内外对用甲烷氢气混合气调整合金碳含量的研究情况。为了在两相区范围内对合金的碳势进行调整,从热力学上估算了不同温度下混合气体浓度的临界值,与试验结果基本符合。优化烧结气氛的试验结果显示:通过选择合适的烧结气氛,对WC-10Co合金性能的提高有明显作用。In this paper the influence of carbon control on the qualities of cemented carbides has been briefly discussed. In order to adjust carbon content of cemented carbides within the two-phase region, the critical values of concentration of the mixed gas varied with different temperature have also been calculated on the basis of thermodynamics method, and the calculations are consistent with facts of experiments. The results of experiments show that the performance of WC-10%Co alloys will be enhanced by optimizing sintering atmosphere.

关 键 词：硬质合金 碳含量 烧结气氛 调整 碳势 热力学 

分 类 号：TG135.6[一般工业技术—材料科学与工程]