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表层硬化
case hardening
- 磁头在磨损过程中表层有冷加工硬化现象。
The work hardening is present on the surface of audio heads during the wear process. - 激光冲击硬化是通过在材料表层内形成冲击波而引起“损伤”来改变表层的组织和性能。
Laser shock hardening may change the structure and properties through forming shock wave and causing damage in the surface layer of metal. - 材料亚表层在磨损后产生明显的应变硬化，硬化效果随温度的升高先增强后减弱。
An obvious strain hardening area generated in subsurface in the process of wear and the hardening effect firstly increased and then decreased with the increase of temperature.
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