谢永,宋文涛,陈文刚,刘德春,陈龙.三角表面微织构对304钢摩擦学性能的影响[J].表面技术,2021,50(4):225-234.
XIE Yong,SONG Wen-tao,CHEN Wen-gang,LIU De-chun,CHEN Long.Effect of Triangular Surface Micro-texture on Tribological Properties of 304 Steel[J].Surface Technology,2021,50(4):225-234 |
| 三角表面微织构对304钢摩擦学性能的影响 |
| Effect of Triangular Surface Micro-texture on Tribological Properties of 304 Steel |
| 投稿时间：2020-03-07 修订日期：2020-06-01 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.04.022 |
| 中文关键词: 三角微织构 304钢 摩擦磨损 有限元分析 转速 直径 |
| 英文关键词:Triangular micro-texture 304 steel friction and wear finite element analysis rotation diameter |
| 基金项目:国家自然科学基金面上项目(51865053) |
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| Author | Institution |
| XIE Yong | School of Mechanical and Transportation, Southwest Forestry University, Kunming 650224, China |
| SONG Wen-tao | School of Mechanical and Transportation, Southwest Forestry University, Kunming 650224, China |
| CHEN Wen-gang | School of Mechanical and Transportation, Southwest Forestry University, Kunming 650224, China |
| LIU De-chun | School of Mechanical and Transportation, Southwest Forestry University, Kunming 650224, China |
| CHEN Long | School of Mechanical and Transportation, Southwest Forestry University, Kunming 650224, China |
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| 中文摘要: |
| 目的 研究表面三角微织构对304钢减摩抗磨特性的影响，扩宽奥氏体不锈钢应用范围，为改善304钢的耐磨损性能提供理论依据。方法 采用激光加工技术在304钢表面制备三角形微织构，其底边长200 μm，高200 μm。利用有限元ANSYS软件对油膜压力等参数进行仿真分析，并在MRTR-1多功能摩擦磨损试验机上检测表面织构化304钢的摩擦学性能，探究不同旋转直径(15、25、35 mm)及不同转速(100、200、300 r/min)下三角微织构的摩擦磨损情况，并采用扫描电子显微镜(SEM)分析工件表面的显微结构及形貌。结果 有限元仿真结果表明，三角微织构的存在使油膜内部的压力增大，并且转速越大，油膜承受压力越大，摩擦系数明显降低。试验结果表明，三角织构与无织构化表面相比，平均摩擦系数显著降低，最大降幅达14.89%。结论 激光加工三角织构的304钢摩擦磨损性能优异，且在旋转直径35 mm、转速300 r/min的条件下，减摩抗磨性能更好。主要作用机理为，接触表面间润滑液的及时有效补充，提供了“二次润滑”效应，并建立了连续的摩擦接触界面间的油膜，起到减摩抗磨的作用。 |
| 英文摘要: |
| In order to study the anti-friction and anti-wear properties of 304 steel with surface triangular micro-texture, broaden the application range of austenitic stainless steel, and a theoretical basis is provided for improving the wear resistance of 304 steel. Laser processing technology is used to prepare triangular micro-texture on the surface of 304 steel. The length of the bottom is 200 μm and the height is 200 μm. The finite element ANSYS software is used to simulate and analyze the oil film pressure and other parameters. MRTR-1 multifunctional friction and wear tester is used to test the friction properties of surface textured 304 steel, and the friction and wear of the triangular micro-texture at different diameters (15, 25, 35 mm) and different speeds (100, 200, 300 r/min) is investigated. Scanning electron microscope (SEM) is used to analyze the microstructure and morphology of the working surface. The existence of triangular micro-texture increases the pressure inside the oil film, the rotation speed can get greater, the pressure of oil film can get greater too, and the friction coefficient decreases significantly. The experimental results show that compared with the untextured surface, the average friction coefficient of the triangular texture is significantly reduced, with a maximum decrease of 14.89%. The friction and wear performance of 304 steel with a triangular texture on the laser-machined surface is excellent, and its anti-friction and wear resistance can be better demonstrated under the conditions of 35 mm diameter and 300 r/min rotation speed. Its main function mechanism is to supplement the lubricating liquid between the contact surfaces timely and effectively, provide a “secondary lubrication” effect, and establish a continuous oil film between the frictional contact interfaces to reduce friction and wear. |
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