Effect of laser textured surface on the friction coefficient of wheel/rail under dry friction condition
文献类型：期刊论文
| 作者 | Jiang HZ(蒋华臻)2; Wang HC(王红才)2; Zhan J(占剑)1,2; Li ZY(李正阳)1,2 |
| 刊名 | JOURNAL OF LASER APPLICATIONS
 |
| 出版日期 | 2025-11-01 |
| 卷号 | 37期号:4页码:18 |
| 关键词 | laser texturing wheel-rail contact friction coefficient dry friction |
| ISSN号 | 1042-346X |
| DOI | 10.2351/7.0001844 |
| 通讯作者 | Zhan, Jian(zhanjian@imech.ac.cn) ; Li, Zheng-Yang(zyli@imech.ac.cn) |
| 英文摘要 | In this study, laser surface texturing was adopted to create discretely distributed microtextures on wheel specimens, with the aim of enhancing surface roughness and, consequently, increasing the friction coefficient. Through an orthogonal experimental methodology, the effects of laser processing parameters-specifically, single-pulse laser energy, the distance between adjacent laser-textured pits, and laser defocus distance-on surface roughness were investigated. This study identified the most significant influencing factors and selected optimized processing parameters to control the morphology of laser texturing. Two typical laser texturing morphologies, namely, volcanic crater type and spherical crown type, were reconstructed through modeling. A comprehensive analysis was conducted on the variation in surface roughness under different texture dimensions, distribution intervals, and arrangement configurations. Finally, rolling friction coefficient tests were conducted using a friction-wear testing machine. The results show that laser texturing significantly enhances the friction coefficient between the wheel and rail. For nontextured specimens subjected to approximately 1000 MPa of contact pressure, the friction coefficient stabilizes at around 0.24 with a slip ratio of approximately 0.45%. In contrast, the laser-treated specimens exhibit an improvement in the friction coefficient ranging from 51.3% to 62.5% compared to their untreated counterparts. Furthermore, lower single-pulse laser energy processing increases the friction coefficient between the wheel and rail; however, the resulting laser-textured morphology exhibits inferior wear resistance compared to those produced with relatively higher pulse energies. |
| 分类号 | Q3 |
| WOS关键词 | RAILWAY WHEEL ; ADHESION BEHAVIOR ; ROLLING-CONTACT ; WEAR BEHAVIOR ; PERFORMANCE ; STEEL ; WATER ; FATIGUE ; SLIP |
| WOS研究方向 | Materials Science ; Optics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001568229900001 |
| 其他责任者 | 占剑，李正阳 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/103904]  |
| 专题 | 宽域飞行工程科学与应用中心 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Jiang HZ,Wang HC,Zhan J,et al. Effect of laser textured surface on the friction coefficient of wheel/rail under dry friction condition[J]. JOURNAL OF LASER APPLICATIONS,2025,37(4):18. |
| APA | 蒋华臻,王红才,占剑,&李正阳.(2025).Effect of laser textured surface on the friction coefficient of wheel/rail under dry friction condition.JOURNAL OF LASER APPLICATIONS,37(4),18. |
| MLA | 蒋华臻,et al."Effect of laser textured surface on the friction coefficient of wheel/rail under dry friction condition".JOURNAL OF LASER APPLICATIONS 37.4(2025):18. |
入库方式： OAI收割
来源：力学研究所
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