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近年来,对钢件氮化后再加热到奥氏体状态进行淬火,这一复合处理工艺的研究和应用,引起了人们的注意。这种工艺是在氮化的基础上发展起来的,具有氮化的许多优点,同时又克服了其某些不足之处,使零件获得更好的性能,在生产应用上很有发展前途。国内外进行的有关研究工作,主要涉及到钢经复合处理后的硬化深度、氮浓度分布、组织变化及硬度特征。但对其它机械性能的研究尚比较少,特别是表面残余应力的分布
In recent years, the nitriding of steel and then heated to the austenitic state of quenching, the composite processing technology research and application has aroused people’s attention. This process is developed on the basis of nitriding, with many advantages of nitriding, but also overcome some of its shortcomings, make the parts get better performance, in the production and application of great prospects for development. The relevant research work carried out at home and abroad mainly involves the hardened depth, the distribution of nitrogen concentration, the change of the structure and the hardness of the steel after the composite treatment. However, the research on other mechanical properties is still relatively small, especially the surface residual stress distribution