| 摘要 |
An ultra hard alloy is a hard material with a high degree of toughness. Small amounts of various materials are added to achieve these properties. One such material is vanadium carbide (VC). However, a crushed carbide raw material has a large grain size, meaning the properties of a product cannot be improved uniformly. Vanadium trioxide (V2O3) was substituted for a carbide as one of the structural raw materials for a material used in producing a tool such as a hob. Because vanadium trioxide is softer than vanadium carbide, it can be readily converted to fine grains in the ball mill mixing process performed during raw material preparation. As a result, the effects of the uniformly dispersed vanadium trioxide results in improved hardness for the sintered ultra hard alloy.
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