Hard alloy wear part and preparation method and application thereof

The invention belongs to the technical field of processing of hard alloy wear parts, and discloses a hard alloy wear part and a preparation method and application thereof. The hard alloy wear part iscomposed of the following alloy components of percentage by weight: 6-15% of Co powder; 0.05-0.4% of rare earth element; 0.1-0.6% of an inhibitor; and the balance WC; and the sum of all the alloy components is 100%. The invention adopts Cr3C2 as an inhibitor in the hard alloy wear part, and the inhibition effect is good, and the addition of the rare earth element can further strengthen the inhibition effect, and can also strengthen the toughness effect of Co, and through the synergistic action of the Cr3C2 and the rare earth element, the hardness and bending strength of the hard alloy wear part are significantly improved, and the service life of the hard alloy wear part is prolonged. 本发明属于硬质合金耐磨件加工技术领域，公开了种硬质合金耐磨件及其制备方法和应用。所述硬质合金耐磨件由以下重量百分比的合金成分组成：Co粉：6~15%，稀土元素：0.05~0.4%，抑制剂：0.1~0.6%，余量为WC，上述所有合金成分之和为100%。本发明在硬质合