Effect of Heat-Magnetic Treatment on Performance of Based on Cobalt Hard Metal

摘要：

　　The effect of heat-magnetic treatment on the performance and structure of YG6 (WC-6%Co) hard metal are studied using powder X-ray diffraction,scanning electron microscope,optical microscope,transverse rupture strength,Vickers hardness and Coervice force tests.The research conditions are:holding at (1 100 ± 5) ℃ for 20-25 min,magnetic quenching 15 min with 2 T intensity,then 3 h annealing at temperature (500 ± 5) ℃; conventional quenching treatment with YG6 (WC-6%Co) was also conducted.Results show that:After heat-magnetic treatment,Vickers hardness of YG6 increases by 3%,transverse rupture strength increases by 18%,impact toughness increases by 24%,coervice force increases by 25%.The content of α-Co in WC-Co alloy increases,solid solubility of W and C increases and the degree of the rounding of the edges and comers of carbide crystals tends to increase after heatmagnetic treatment; these is the main reason for performance improving.

关键词： hard metal heat-magnetic treatment performance

作者: Li Jian Guo Xin Zhou Hongming Huang Zuqiong Yang Jun Yang Liang Liu Wenwen Fang Zhenqi

作者单位: School of Materials Science and Engineering,Central South University,Changsha 410083,China;Graduate School of Materials Science and Engineering,Central South University,Changsha 410083,China

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: 295-299

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）