激光相变硬化机理主要是马氏体强化和晶粒细化。
The mechanism of laser hardening is martensitic hardening and grain refining.
磨削淬火技术是利用磨削热对工件表面进行热处理，使工件表层发生马氏体相变，达到与表面强化处理一样的性能。
The heat flux generated in grinding is utilized to induce martensitic phase transformation in the surface layers of components, such as that achieved by other surface strengthening processes.
磨削强化技术是近年来兴起的一项新技术，它利用磨削加工过程中产生的大量磨削热，使金属材料工件的表面马氏体化，强化工件材料性能。
The grind-hardening is the flourishing new technology recently, which martensitizes the metal material of workpiece surface and enhances its capability by heat generated during grinding process.
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