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Investigation of the Effect of the Plasma Thin-Film Coating System Si − O − C − N on the Surface Hardening of High-Speed Steel
Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques ( IF 0.5 ) Pub Date : 2020-05-07 , DOI: 10.1134/s1027451020020263
V. A. Korotkov , I. A. Rastegaev , D. L. Merson , M. A. Afanasyev

Abstract

The results of studying changes in the strength properties of the surface of a tool product from high-speed steel (HSS) of the W6Mo5Cr4V2 type after its hardening by the application of the Si−O−C−N micron plasma coating system are presented. The study is conducted by comparing the properties of the surface, evaluated by the same methods before and after coating. In this case, the sample goes through a complete cycle of mechanical and heat treatment designed for the product before coating. The results of evaluation of the adhesive strength of the coating using the proposed method of recalculation are given, and the correspondence between the index of destruction of the coating of the VDI 3198: 1992-08 technique and the delamination coefficient is obtained. The study itself is carried out by indenting and scratching the surface with HV, HRC and HRB-type indenters in the load variation range of 0.1–200 N, which makes it possible to simulate different levels of contact pressure in the surface layer of the substrate and at the base–coating interface. It is shown that the application of a thin-film coating of the Si−O−C−N system by the plasma method makes it possible, in addition to standard heat treatment of HSS steel, to increase the surface resistance to penetration and scratching with harder bodies. The causes of the obtained positive effect are analyzed and the limits of the expediency of applying plasma hardening depending on the contact task are described. These results make it possible to consider the method of the additional plasma hardening of HSS steel as promising for implementation.


中文翻译:

等离子薄膜涂层系统Si-O-C-N对高速钢表面硬化影响的研究

摘要

提出了研究通过应用Si-OC-N微米等离子涂层系统对W6Mo5Cr4V2型高速钢(HSS)进行硬化后的工具产品表面强度性能变化的结果。该研究是通过比较表面的特性进行的,该特性在涂覆之前和之后均通过相同的方法进行了评估。在这种情况下,样品在涂覆之前会经历为产品设计的完整的机械和热处理循环。给出了使用建议的重新计算方法评估涂层的粘合强度的结果,并获得了VDI 3198:1992-08技术的涂层破坏指数与分层系数之间的对应关系。研究本身是通过用HV压痕和划伤表面来进行的,HRC和HRB型压头的负载变化范围为0.1–200 N,这使得可以模拟基材表面层和底涂层界面的不同接触压力水平。结果表明,通过等离子方法对Si-OCn体系进行薄膜镀膜,除了可以对HSS钢进行标准热处理外,还可以提高表面抗渗透性和抗划伤性。坚硬的身体。分析了获得积极效果的原因,并描述了根据接触任务施加等离子体硬化的便利性的局限性。这些结果使得有可能将HSS钢的附加等离子体硬化方法视为有望实现的方法。这样就可以模拟基材表面层和底涂层界面的不同接触压力水平。结果表明,通过等离子方法对Si-OCn体系进行薄膜镀膜,除了可以对HSS钢进行标准热处理外,还可以提高表面抗渗透性和抗划伤性。坚硬的身体。分析了获得积极效果的原因,并描述了根据接触任务施加等离子体硬化的便利性的局限性。这些结果使得有可能将HSS钢的附加等离子体硬化方法视为有望实现的方法。这样就可以模拟基材表面层和底涂层界面的不同接触压力水平。结果表明,通过等离子方法对Si-OCn体系进行薄膜镀膜,除了可以对HSS钢进行标准热处理外,还可以提高表面抗渗透性和抗划伤性。坚硬的身体。分析了获得积极效果的原因,并描述了根据接触任务施加等离子体硬化的便利性的局限性。这些结果使得有可能将HSS钢的附加等离子体硬化方法视为有望实现的方法。结果表明,通过等离子方法对Si-OCn体系进行薄膜镀膜,除了可以对HSS钢进行标准热处理外,还可以提高表面抗渗透性和抗划伤性。坚硬的身体。分析了获得积极效果的原因,并描述了根据接触任务施加等离子体硬化的便利性的局限性。这些结果使得有可能将HSS钢的附加等离子体硬化方法视为有望实现的方法。结果表明,通过等离子方法对Si-OCn体系进行薄膜镀膜,除了可以对HSS钢进行标准热处理外,还可以提高表面抗渗透性和抗划伤性。坚硬的身体。分析了获得积极效果的原因,并描述了根据接触任务施加等离子体硬化的便利性的局限性。这些结果使得有可能将HSS钢的附加等离子体硬化方法视为有望实现的方法。分析了获得积极效果的原因,并描述了根据接触任务施加等离子体硬化的便利性的局限性。这些结果使得有可能将HSS钢的附加等离子体硬化方法视为有望实现的方法。分析了获得积极效果的原因,并描述了根据接触任务施加等离子体硬化的便利性的局限性。这些结果使得有可能将HSS钢的附加等离子体硬化方法视为有望实现的方法。
更新日期:2020-05-07
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