仿生六边形织构对40Cr钢摩擦学性能的影响

doi:10.13251/j.issn.0254-6051.2023.12.041

金属热处理 ›› 2023, Vol. 48 ›› Issue (12): 250-254.DOI: 10.13251/j.issn.0254-6051.2023.12.041

仿生六边形织构对40Cr钢摩擦学性能的影响

杨洋^1,2, 龙伟民^1,3, 程战¹, 伍里峰^1,2, 师陆冰³, 吴元科⁴

1.中国机械科学研究总院集团有限公司, 北京 100044;
2.中国机械总院集团宁波智能机床研究院有限公司, 浙江宁波 315700;
3.郑州机械研究所有限公司, 河南郑州 450001;
4.中铁工程装备集团有限公司, 河南郑州 450016

收稿日期:2023-07-09 修回日期:2023-10-09 出版日期:2023-12-25 发布日期:2024-01-29
作者简介:杨洋(1996—),男,硕士,主要研究方向为激光表面改性与摩擦学设计,E-mail: yangtum@163.com
基金资助:
浙江省“尖兵”“领雁”研发攻关计划(2022C01187)

Effect of bionic hexagonal texture on tribological properties of 40Cr steel

Yang Yang^1,2, Long Weimin^1,3, Cheng Zhan¹, Wu Lifeng^1,2, Shi Lubing³, Wu Yuanke⁴

1. China Academy of Machinery Science and Technology Group, Beijing 100044, China;
2. Ningbo Intelligent Machine Tool Research Institute Co., Ltd., of China National Machinery Institute Group, Ningbo Zhejiang 315700, China;
3. Zhengzhou Research Institute of Mechanical Engineering Co., Ltd., Zhengzhou Henan 450001, China;
4. China Railway Engineering Equipment Group Co., Ltd., Zhengzhou Henan 450016, China

Received:2023-07-09 Revised:2023-10-09 Online:2023-12-25 Published:2024-01-29

摘要/Abstract

摘要： 采用激光加工技术,在40Cr钢表面加工不同面密度的仿生六边形织构,在油润滑条件下,采用高温摩擦磨损试验机进行摩擦磨损试验。在不同转速和试验载荷条件下,研究不同面密度的仿生六边形织构对40Cr钢摩擦学性能的影响。利用金相显微镜分析试件表面的磨损形貌。结果表明,表面织构化的试件摩擦因数相较未织构试件有不同程度的减小,并随织构面密度的增大先减小后增大,其中织构面密度为10%试件表面的摩擦因数较未织构试件降低9.8%,耐磨性能也得到一定程度的提高。低面密度织构试件的摩擦因数随载荷的增加先增大后减小,高面密度织构试件的摩擦因数随载荷的增加逐渐减小。试样摩擦因数随速度的增大而减小。在油润滑条件下,仿生六边形织构可以有效地改善摩擦副表面的摩擦磨损性能,且合理的织构面密度才能最大发挥仿生织构的减摩效果。

关键词: 40Cr钢, 激光加工, 仿生六边形织构, 摩擦因数, 油润滑

Abstract: Bionic hexagonal textures with different area densities were processed on the surface of 40Cr steel by laser processing technology. Friction and wear tests were carried out on high temperature tribometer under oil lubrication conditions. The influence in variation of rotational speed and load on the tribological properties of bionic hexagonal texture with different area density was studied. The wear morphology of the specimen surface was analyzed by means of metallurgical microscope. The results show that the friction coefficient of surface textured specimens is lower than that of un-textured specimens, decreases first and then increases with the increase of texture density. The friction coefficient of the specimen with texture density of 10% is 9.8% lower than that of the untextured surface. Wear resistance is improved. The friction coefficient of low density textured specimens increases first and then decreases with the increase of load, and the friction coefficient of high density decreases with the increase of load. The friction coefficient of the specimen decreases with the increase of speed. Under the condition of oil lubrication, the bionic hexagonal texture can effectively improve the friction and wear properties of the friction pair surface, and the reasonable texture area density can maximize the friction reduction effect of the bionic texture.

Key words: 40Cr steel, laser processing, bionic hexagonal texture, friction coefficient, oil lubrication

中图分类号:

TB301

杨洋, 龙伟民, 程战, 伍里峰, 师陆冰, 吴元科. 仿生六边形织构对40Cr钢摩擦学性能的影响[J]. 金属热处理, 2023, 48(12): 250-254.

Yang Yang, Long Weimin, Cheng Zhan, Wu Lifeng, Shi Lubing, Wu Yuanke. Effect of bionic hexagonal texture on tribological properties of 40Cr steel[J]. Heat Treatment of Metals, 2023, 48(12): 250-254.

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仿生六边形织构对40Cr钢摩擦学性能的影响

Effect of bionic hexagonal texture on tribological properties of 40Cr steel

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