Xiaohu Wu, Fuli Zhang, Huanxiong Xia, Lin Zhang, Jianhua Liu, Xuerui Zhang, Xiaohui Ao, Juncheng Luo
{"title":"Effects of Asperity Shapes and Normal Loads on Adhesive Wear Mechanisms","authors":"Xiaohu Wu, Fuli Zhang, Huanxiong Xia, Lin Zhang, Jianhua Liu, Xuerui Zhang, Xiaohui Ao, Juncheng Luo","doi":"10.1007/s11249-025-01978-1","DOIUrl":null,"url":null,"abstract":"<div><p>How the shape of asperities affects the wear behavior is still an open question in contact mechanics. This work developed adhesive wear models including the deformable spherical and sinusoidal asperities in contact with a rigid flat by introducing the ductile failure criterion. For spherical asperity, fractures propagating at the corner and then forming spherical-like wear particles are observed under high normal loads, indicating a new Archard-like wear mode. For sinusoidal asperity, it is almost flattened under high normal loads, yielding lamellar wear particles; the wear rate rises first and then decreases as the normal load increases, and both the peak wear rate and the corresponding normal load greatly depend on its shape.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":3.3000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tribology Letters","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11249-025-01978-1","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
How the shape of asperities affects the wear behavior is still an open question in contact mechanics. This work developed adhesive wear models including the deformable spherical and sinusoidal asperities in contact with a rigid flat by introducing the ductile failure criterion. For spherical asperity, fractures propagating at the corner and then forming spherical-like wear particles are observed under high normal loads, indicating a new Archard-like wear mode. For sinusoidal asperity, it is almost flattened under high normal loads, yielding lamellar wear particles; the wear rate rises first and then decreases as the normal load increases, and both the peak wear rate and the corresponding normal load greatly depend on its shape.
期刊介绍：
Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.
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