Tribological performance of WC/C-based DLC coatings under high temperature in dry and humid conditions

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-04-09 DOI:10.1016/j.wear.2025.206073

Vanessa Montoya , Ali Zayaan Macknojia , Hamidreza Mohseni , Thomas D. Kasprow , Diana Berman

{"title":"Tribological performance of WC/C-based DLC coatings under high temperature in dry and humid conditions","authors":"Vanessa Montoya , Ali Zayaan Macknojia , Hamidreza Mohseni , Thomas D. Kasprow , Diana Berman","doi":"10.1016/j.wear.2025.206073","DOIUrl":null,"url":null,"abstract":"<div><div>Wear-resistant diamond-like carbon (DLC) films are widely used in industrial, biomedical, and automotive applications. However, their tribological performance across different environmental conditions, particularly during transitions between humid and dry environments, remains poorly understood. This study examines the tribological performance of WC/C-based DLC coatings under varying loads, temperatures, and environmental conditions. The results indicate that wear remained consistent at room temperature and 100 °C but increased with higher loads and temperatures. Elevated temperatures, particularly in dry conditions, were associated with greater disorder and partial graphitization of the coating, as revealed by Raman spectroscopy. The lower friction and wear observed in humid environment were connected to the presence of oxygen that assisted in preserving the structure of the coating. Indeed, the tests conducted in dry oxygen atmosphere confirmed lower friction and prolonged lifetime of the coating. The coating's performance in humid and dry environments highlights the importance of considering environmental factors in real-world applications.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"572 ","pages":"Article 206073"},"PeriodicalIF":5.3000,"publicationDate":"2025-04-09","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/S0043164825003424","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

Wear-resistant diamond-like carbon (DLC) films are widely used in industrial, biomedical, and automotive applications. However, their tribological performance across different environmental conditions, particularly during transitions between humid and dry environments, remains poorly understood. This study examines the tribological performance of WC/C-based DLC coatings under varying loads, temperatures, and environmental conditions. The results indicate that wear remained consistent at room temperature and 100 °C but increased with higher loads and temperatures. Elevated temperatures, particularly in dry conditions, were associated with greater disorder and partial graphitization of the coating, as revealed by Raman spectroscopy. The lower friction and wear observed in humid environment were connected to the presence of oxygen that assisted in preserving the structure of the coating. Indeed, the tests conducted in dry oxygen atmosphere confirmed lower friction and prolonged lifetime of the coating. The coating's performance in humid and dry environments highlights the importance of considering environmental factors in real-world applications.

查看原文本刊更多论文

干湿高温条件下WC/ c基DLC涂层的摩擦学性能

耐磨类金刚石（DLC）薄膜广泛应用于工业、生物医学和汽车领域。然而，它们在不同环境条件下的摩擦学性能，特别是在潮湿和干燥环境之间的过渡期间，仍然知之甚少。本研究考察了WC/ c基DLC涂层在不同载荷、温度和环境条件下的摩擦学性能。结果表明，在室温和100℃时，磨损基本保持一致，但随着载荷和温度的升高而增大。拉曼光谱显示，温度升高，特别是在干燥条件下，与涂层更大的无序和部分石墨化有关。在潮湿环境中观察到的较低的摩擦和磨损与氧气的存在有关，氧气有助于保持涂层的结构。事实上，在干氧气氛中进行的试验证实了涂层的摩擦更小，使用寿命更长。该涂层在潮湿和干燥环境中的性能突出了在实际应用中考虑环境因素的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

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.