Effects of Rare Earths on Microstructure and Properties of WC-8wt%Co Cemented Carbide Produced from Zinc Process Reclaimed Powder

摘要：

　　Both WC-8wt%Co (YG8) and rare earths (RE) doped WC-8wt%Co (YG8R) cemented carbides are fabricated from zinc process reclaimed WC/8wt%Co powder mix.The effects of doped yttrium on the microstructure,properties and performances of regenerated alloys are investigated.The results reveal that there are coarse Ca-S inclusions in YG8 alloy,however,only ultrafine(smaller than 0.5 μm) and dispersed spherical Y-Ca-S-O phase can be found in YG8R alloy so as to improving the morphology,size and distribution of the defects.Compared with YG8,the density,hardness and WC grain size of YG8R are similar but the TRS and cutting life are increased to the equal level of original cemented carbide with same grade.

关键词： regenerated cemented carbide rare earths microstructure properties

作者: Lin Chenguang Lin Zhongkun Cao Ruijun

作者单位: General Research Institute for Non-ferrous Metals,Beijing 100088,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: 280-286

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）