On the Solubility of Chromium in the Cubic Carbide and M7C3 Carbide in the WC-Co-Cr-Ti and WC-Co-Cr-Nb Systems

摘要：

　　The solubility of Cr in cubic carbides in the systems WC-Co-TiC and WC-Co-NbC has been determined using equilibrium samples.Thermodynamic calculations were used to design the alloys through extrapolations of Gibbs energy expressions.The alloys were designed to have a microstructure containing the following phases:WC,liquid,M7C3,graphite and cubic carbide.The alloys were investigated using scanning electron microscopy and analyzed using energy-dispersive X-ray spectrometry.The present work shows how the Cr solubility depends on which cubic carbide former that is present.The WC-Co-Cr-Zr alloy has no detectable amount of Cr whereas the WC-Co-Cr-Ti alloy has 17% Cr in the cubic carbide.

关键词： Cr cubic carbides thermodynamics SEM EDS

作者: Susanne Norgren Alexandra Kusoffsky

作者单位: Sandvik Mining,R&D Rock Tools,Stockholm,Sweden;Department of Materials Science,The(A)ngstr(o)m Labor Sandvik Hard Materials,R&D Hard Materials,Coventry,UK

会议类型: 国际会议

会议名称: 2012 Zhuzhou International Conference on Cemented Carbides(株洲硬质合金国际学术会议)

会议地点: 株洲

会议语种:英文

页码: 201-205

在线出版日期: 2012-09-12（万方平台首次上网日期，不代表论文的发表时间）