A Study of the Effect of Magnetic Field Pulse Duration on Residual Stress and Surface Hardness of 40Kh13, R6М5, and 40KhМFА Steels

IF 0.7 Q3 Engineering

Surface Engineering and Applied Electrochemistry Pub Date : 2025-09-05 DOI:10.3103/S1068375525700528

A. N. Matyas, A. M. Milyukova, A. A. Lyakh

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Abstract

The effect of magnetic-pulse treatment on changes in the properties of steel grades 40Kh13, R6M5, and 40KhMFA depending on the pulse duration, frequency and energy characteristics of the treatment is studied theoretically and experimentally. An experimental MIU 20-21 magnetic-pulse unit capable of increasing pulse duration and changing the strength of the magnetic field is developed. Dependencies of variation in microhardness and in the surface roughness parameter Ra of the studied samples are obtained on different magnetic-pulse units with different technical characteristics and under different modes of exposure. The treatment has made it possible to reduce the surface roughness values from 5 to 26%, to diminish the spread in values of surface microhardness and to increase it up to 20%. The research into the pulsed magnetic field effect on residual stresses in samples indicates the possibility of changing them stably and repeatedly. Stresses have been completely regulated in several samples using this method of magnetic-pulse treatment.

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磁场脉冲时间对40Kh13、R6М5和40KhМFА钢残余应力和表面硬度影响的研究

通过理论和实验研究了磁脉冲处理对40Kh13、R6M5和40KhMFA钢种性能变化的影响，研究了脉冲时间、频率和能量特性对磁脉冲处理的影响。研制了一种能够增加脉冲时间和改变磁场强度的实验性磁脉冲装置。得到了样品的显微硬度和表面粗糙度参数Ra的变化与不同技术特性的不同磁脉冲单元和不同曝光方式的关系。该处理可以将表面粗糙度值从5%降低到26%，减少表面显微硬度值的扩散，并将其提高到20%。脉冲磁场对样品残余应力影响的研究表明，脉冲磁场对样品残余应力的稳定、重复变化是可能的。使用这种磁脉冲处理方法，在几个样品中应力已完全调节。

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来源期刊

Surface Engineering and Applied Electrochemistry Engineering-Industrial and Manufacturing Engineering

CiteScore

1.60

自引率

22.20%

发文量

期刊介绍： Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.