坯体成形工艺对烧结制备超细晶WC-12Co硬质合金组织和力学性能的影响

王超, 王海滨, 玄拾雷, 刘轩, 刘雪梅, 宋晓艳

Effects of Powder Molding Process on the Microstructure and Mechanical Properties of As-Sintered Ultrafine- Grained WC-12Co Cemented Carbides

WANG Chao, WANG Haibin, XUAN Shilei, LIU Xuan, LIU Xuemei, SONG Xiaoyan

图5 PEG质量分数为1.5%时不同浓度PEG溶液成形坯体烧结制备WC-12Co硬质合金显微组织的OM像和XRD谱

Fig.5 OM images of the sintered WC-12Co cemented carbides with PEG solution concentrations of 4.1% (a) and 30.0% (b) at PEG content of 1.5%; and corresponding XRD spectra of the cemented carbide (c) (Circles in Fig.5b show the poro-sities)