Laser Treatment Influence on Tribotechnical Properties of 45 Steel

IF 0.5 4区工程技术 Q4 ENGINEERING, MECHANICAL

Journal of Friction and Wear Pub Date : 2025-10-07 DOI:10.3103/S1068366625700412

E. G. Akunets, D. M. Gutsev, V. G. Kudrytski, A. V. Maksimenko, I. V. Tsarenko

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Abstract

The influence of technological parameters of laser processing on tribotechnical characteristics of 45 steel has been investigated, allowing to develop recommendations for obtaining maximum wear resistance. The influence of laser processing modes (pump current I, pulse duration τ) on the values of energy in the pulse E transferred to the surface to be processed has been evaluated. Changing the current strength in the range of 60–120 A and pulse time from 5 to 25 ms allowed us to obtain the change of energy in the pulse in the range from 0.3 to 4.1 J. It was found that tribotechnical properties of the surface treated with the same energy, but different modes of exposure differ. The wear resistance of the sample was estimated by the width of the friction track. It was found that the influence of pulse duration on tribotechnical characteristics is extreme: at a pumping current of 60 A the minimum friction coefficient and maximum wear resistance were obtained at pulse duration of 20 ms. Increase of pulse duration more than 20 ms leads to lamellar fragments peeling off on the surface and deterioration of tribotechnical parameters.

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激光处理对45钢摩擦性能的影响

研究了激光加工工艺参数对45钢摩擦技术特性的影响，提出了获得最大耐磨性的建议。研究了激光加工模式（泵浦电流I、脉冲持续时间τ）对传递到待加工表面的脉冲E能量值的影响。电流强度在60-120 A范围内变化，脉冲时间在5 - 25 ms范围内变化，可以得到脉冲能量在0.3 - 4.1 j范围内的变化。结果表明，相同能量处理的表面摩擦学性能不同，但不同的曝光方式不同。试样的耐磨性由摩擦轨迹的宽度来估计。研究发现，脉冲持续时间对摩擦技术特性的影响是极端的：在泵送电流为60 a时，脉冲持续时间为20 ms时获得最小摩擦系数和最大耐磨性。当脉冲持续时间增加到20 ms以上时，表面片状碎片脱落，摩擦技术参数恶化。

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来源期刊

Journal of Friction and Wear ENGINEERING, MECHANICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Journal of Friction and Wear is intended to bring together researchers and practitioners working in tribology. It provides novel information on science, practice, and technology of lubrication, wear prevention, and friction control. Papers cover tribological problems of physics, chemistry, materials science, and mechanical engineering, discussing issues from a fundamental or technological point of view.