{"title":"Study on the running-in tribological performance and mechanism of the valve plate with surface texture for axial piston pumps","authors":"Shiqi Xia , Chao Huang , Shaogan Ye , Wanxin Jiao , Yimin Xia , Zongming Zhu","doi":"10.1016/j.wear.2025.206085","DOIUrl":null,"url":null,"abstract":"<div><div>The textured valve plate pair's tribological performance directly determines axial piston pumps' efficiency and lifespan. The tribological parameters are significantly impacted by the running-in process. In this paper, ring-on-block testing with three types of textures was conducted to analyze the friction coefficients, running-in time, wear rates, and micrographs under two running-in conditions. In addition, the specific textures were applied during the pump's running-in tests. Results show that the lowest friction coefficient and wear rate of textured specimens are reduced by approximately 29.11 % and 74.88 %, respectively, compared to untextured specimens. The wear mechanism of the textured valve plate pair is primarily abrasive wear. Higher pressure and speed are beneficial in reducing friction and wear during the running-in process.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"574 ","pages":"Article 206085"},"PeriodicalIF":6.1000,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wear","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0043164825003540","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/4/18 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The textured valve plate pair's tribological performance directly determines axial piston pumps' efficiency and lifespan. The tribological parameters are significantly impacted by the running-in process. In this paper, ring-on-block testing with three types of textures was conducted to analyze the friction coefficients, running-in time, wear rates, and micrographs under two running-in conditions. In addition, the specific textures were applied during the pump's running-in tests. Results show that the lowest friction coefficient and wear rate of textured specimens are reduced by approximately 29.11 % and 74.88 %, respectively, compared to untextured specimens. The wear mechanism of the textured valve plate pair is primarily abrasive wear. Higher pressure and speed are beneficial in reducing friction and wear during the running-in process.
期刊介绍：
Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.
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