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11 PEG质量分数为1.5%及PEG浓度为4.1%时烧结制备WC-12Co硬质合金试样的微结构分析

Fig.11 Microstructural analyses of the sintered WC-12Co cemented carbides under PEG content of 1.5% and PEG solution concentration of 4.1% (a) STEM-HAADF image and elemental mapping results (b) sub-grain structure of WC grain (c) grain size distribution of Co-rich phases inside the WC grains in Fig.11b