切削刀具还必须具有高强度才能抗振动和抗冲击。

Cutting tools must also have high strength in order to be vibration and impact-resistant.

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其特点是强度高、硬度高、耐磨性好。所以，其切削加工性差，主要是刀具耐用度和加工效率均低。

It has the characteristic of high strength, hardness and good wearing ability, so it's machining capability is poor, mostly because tool's wearing and machining efficiency is very low.

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结果表明，材料的磨料磨损主要由显微切削和显微裂纹两个因素控制，材料的耐磨性由其强度与韧性的配合所决定。

The results show that the abrasive wear loss is mainly controlled by micro-cutting and microcracking. The wear resistance may be determined by the combination of strength and toughness.

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