一、引言非金属元素合金化就是将含有碳、氮、硼元素的化合物,按一定的比例制备成添加物,涂敷在金属材料的表面上,在激光束的辐照下,使涂层和基体薄层同时达到熔化程度。在熔池中,添加元素和基体元素同处于液体状态下,由于液体表面张力效应和重力的作用,熔池中各种元素之间相互扩散,混合,移去加热的激光束,熔池吸收大量的热量由基体迅速地传走,而表面急剧冷却,凝固后,基体表面便形成含有添加元素的合金层。采用激光C·N和C·B合金化与常规化学共渗处理相比其优点是:激光合金化 I. Introduction Non-metallic elements alloying is to contain carbon, nitrogen, boron compounds, according to a certain percentage of prepared as additives, coated on the surface of the metal material, the laser beam irradiation, the coating and The base layer melts at the same time. In the pool, the addition of elements and matrix elements in the same liquid state, due to liquid surface tension effect and the role of gravity, the pool of various elements mutual diffusion, mixing, remove the heated laser beam, the pool absorb a large amount Of the heat from the substrate quickly passed away, and the surface rapid cooling, solidification, the substrate surface will form an alloy layer containing added elements. The advantages of using laser C · N and C · B alloying compared with the conventional chemical osmosis are: laser alloying