This paper has summarized five surface strengthening methods, and these methods could to improve the surface properties of materials. The selection of mechanical parts materials has determined according to their working conditions. The work-piece in using cannot avoid defects in the material. This paper has introduced surface deformation enhancement, surface phase transformation enhancement, ion implantation technology, surface diffusion and infiltration technology, chemical transformation technology and surface coating technology. And has also included the principle of every surface technology, various technologies, parameters, strengthening characteristics, as well as strengthening effect and matters needing attention. The hardness, residual stress and corrosion resistance off mechanical parts could be improved through these surface strengthening methods. It is convenient to find the strengthening method and parameters in this paper when strengthening mechanical parts.

中文翻译：

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机械零件表面强化技术

本文总结了五种表面强化方法，这些方法可以改善材料的表面性能。机械零件材料的选用已根据其工作条件而定。使用中的工件无法避免材料的缺陷。本文介绍了表面形变增强、表面相变增强、离子注入技术、表面扩散和渗透技术、化学转化技术和表面涂层技术。并且还包括了各种表面工艺的原理、各种工艺、参数、强化特性，以及强化效果和注意事项。硬度，通过这些表面强化方法可以提高机械零件的残余应力和耐腐蚀性。在加强机械零件时，方便查找本文中的加强方法和参数。