Mingfeng Li , Yuzhen Liu , Dae-Eun Kim , Oleksiy V. Penkov
{"title":"Enhanced mechanical and tribological performance of W/B4C periodic nano-multilayer coating by optimizing W deposition power","authors":"Mingfeng Li , Yuzhen Liu , Dae-Eun Kim , Oleksiy V. Penkov","doi":"10.1016/j.tsf.2025.140716","DOIUrl":null,"url":null,"abstract":"<div><div>Tungsten/Boron Carbide (W/B<sub>4</sub>C) periodic nano-multilayer coatings (PNCs) were deposited by pulse DC magnetron sputtering; the effect of W sputtering power on the structure and tribological performance of PNCs was investigated with W power ranging from 15 to 50 Watts. The highest mechanical and tribological performance was achieved at a deposition rate of 35 Watts, and these properties were attributed to high uniformity, high compactness, and low intermixing of the PNC. Besides, the formation of graphitization on the surface of the wear track was observed, which was also the reason for the wear reduction of the W/B<sub>4</sub>C PNC coating. The W deposition power should be adjusted to a suitable range to obtain a coating with superior mechanical and tribological performance.</div></div>","PeriodicalId":23182,"journal":{"name":"Thin Solid Films","volume":"825 ","pages":"Article 140716"},"PeriodicalIF":2.0000,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thin Solid Films","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0040609025001166","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
引用次数: 0
Abstract
Tungsten/Boron Carbide (W/B4C) periodic nano-multilayer coatings (PNCs) were deposited by pulse DC magnetron sputtering; the effect of W sputtering power on the structure and tribological performance of PNCs was investigated with W power ranging from 15 to 50 Watts. The highest mechanical and tribological performance was achieved at a deposition rate of 35 Watts, and these properties were attributed to high uniformity, high compactness, and low intermixing of the PNC. Besides, the formation of graphitization on the surface of the wear track was observed, which was also the reason for the wear reduction of the W/B4C PNC coating. The W deposition power should be adjusted to a suitable range to obtain a coating with superior mechanical and tribological performance.
期刊介绍:
Thin Solid Films is an international journal which serves scientists and engineers working in the fields of thin-film synthesis, characterization, and applications. The field of thin films, which can be defined as the confluence of materials science, surface science, and applied physics, has become an identifiable unified discipline of scientific endeavor.