At the end, the paper discusses the mechanism of laser transformation hardening.
最后探讨了激光相变硬化的机理。
The technique of laser transformation hardening plays the more and more vital role in the industry.
激光相变硬化技术在工业中发挥着越来越重要的作用。
Laser transformation hardening was carried out on U74 rail steel by a self-developed high power diode laser.
使用自制的大功率半导体激光器对U 74轨钢进行了相变硬化。
The width and depth of laser transformation hardening zone and residual stress distribution were measured experimentally.
实测了激光相变硬化区的宽度和深度及残余应力分布。
The characteristic and mechanism of laser transformation hardening, the technics of laser surface heat treatment were introduced.
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 data-bases of thermal physical property and laser transformation hardening processing parameter for various kinds of steels can be set up using this system.
应用本系统可建立不同钢种的热物性参数库和激光相变硬化处理工艺参数库。
Abstract: The research of laser transformation hardening on steel 980 has been done in this paper. The width, depth and microhardness of quench zone was measured.
摘要：对980钢进行激光相变硬化研究，分别对其空冷和水冷时淬火硬化层的宽度和深度进行测量，对其组织和硬化层硬度进行分析。
The big area laser transformation hardening must adopt the methods of facular joint in giving priority to attrition, and the tempering zone can't be avoided in the joint.
以提高耐磨性为主的大面积激光相变硬化必须采用光斑搭接方法，在搭接处的回火带是不可避免的。
The structure and performance of steel materials is analyzed after laser quenching , and the research situation of laser transformation hardening in the field of materials science in future.
分析了钢铁材料激光相变硬化后的组织与性能，及近年来激光相变硬化技术在材料科学领域的研究状况。
A three-dimensional numerical model for laser surface transformation hardening of metals using the finite differential technique is given in this peper.
给出了用有限差分法对金属材料激光相变硬化过程建立的三维数值模型。
The phase transformation hardening and fast melting-solidification by controlling power intensity and shocking-time of laser pulse have been analysed.
分析和实验得出，通过控制入射激光功率密度和作用时间可以实现相变硬化及快速熔化——凝固处理。
The laser phase-transformation hardening treatment technique has broad prospects in industrial application.
激光表面相变硬化技术在钢铁工业中的应用具有十分广阔的前景。
The results show that, the laser treated layer includes surface melted layer, overheating layer and transformation hardening layer.
结果表明，激光处理层分三层：熔凝层、过热层和相变硬化层。
The results show that, the laser treated layer includes surface melted layer, overheating layer and transformation hardening layer.
结果表明，激光处理层分三层：熔凝层、过热层和相变硬化层。
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