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研究了1 800℃/60 min、1 900℃/45 min、2 200℃/30 min三种碳化工艺对30%TiC-70%WC(质量分数)饱和固溶体固溶完全程度、粒度以及所制备WC-TiC-4.3%Co合金的显微结构、切削性能的影响。结果表明1 900℃/45 min碳化工艺制备的固溶体固溶较完全,Fsss粒度2.15μm,制备的WC-TiC-4.3%Co合金,显微结构为固溶体和粘结相两相组织,相同切削条件下合金刀片切削寿命较优。
The effects of three kinds of carbonization processes at 1 800 ℃ / 60 min, 1 900 ℃ / 45 min and 2 200 ℃ / 30 min on the solid solution and granularity of 30% TiC-70% WC (mass fraction) -TiC-4.3% Co alloy microstructure, cutting performance. The results show that the solid solution of 1 900 ℃ / 45 min carbonization process is more complete solution, Fsss particle size of 2.15μm, WC-TiC-4.3% Co alloy prepared microstructure of solid solution and binder phase two-phase microstructure, the same cutting conditions Under the alloy blade cutting life is better.