{"title":"Low-temperature annealing effects on friction and wear performance of nanotwinned copper dry sliding against zirconia","authors":"Zhidong Zheng , Zhimin Peng , Weijie Huang , Yongjin Mai , Fujian Guo","doi":"10.1016/j.wear.2025.205969","DOIUrl":null,"url":null,"abstract":"<div><div>To elucidate the influence of structural parameters beyond twin thickness on the tribological behavior of nanotwinned metals, we fabricated a series of nanotwinned copper (NT-Cu) films with almost the same average twin thickness using direct current electroplating, followed by annealing at temperatures below the de-twinning point. Subsequently, we assessed their tribological performance under dry sliding conditions against zirconia balls and observed a significant reduction in both the coefficient of friction and wear rate of the NT-Cu films post-annealing. Through a comparative analysis of the microstructures of NT-Cu before and after annealing, coupled with an examination of the worn subsurface microstructure, we identified the contributions of grain size and texture to the reduced friction and wear rate of the NT-Cu films. This study sheds light on the role of the initial microstructure in dictating the tribological properties of nanotwinned metals.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"568 ","pages":"Article 205969"},"PeriodicalIF":5.3000,"publicationDate":"2025-02-20","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/S0043164825002388","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
To elucidate the influence of structural parameters beyond twin thickness on the tribological behavior of nanotwinned metals, we fabricated a series of nanotwinned copper (NT-Cu) films with almost the same average twin thickness using direct current electroplating, followed by annealing at temperatures below the de-twinning point. Subsequently, we assessed their tribological performance under dry sliding conditions against zirconia balls and observed a significant reduction in both the coefficient of friction and wear rate of the NT-Cu films post-annealing. Through a comparative analysis of the microstructures of NT-Cu before and after annealing, coupled with an examination of the worn subsurface microstructure, we identified the contributions of grain size and texture to the reduced friction and wear rate of the NT-Cu films. This study sheds light on the role of the initial microstructure in dictating the tribological properties of nanotwinned metals.
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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