还讨论了双注入金属表面的硬化机理。
Finally, the surface strengthening mechanism by double ion implantation is discussed.
主要介绍了激光相变硬化的特点及强化机理、激光表面相变硬化工艺。
The characteristic and mechanism of laser transformation hardening, the technics of laser surface heat treatment were introduced.
介绍了激光强化的基础知识，分析了激光固态相变硬化机理，设计并进行了模具及模具材料表面的激光强化实验。
The mechanism of phase change in solid state by laser harding has been analysed after the presentation of the base of laser harding.
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