Synergetic lubrication between MoDTC and TiO2 nano-additive: Dynamic evolution of tribofilm induced by tribocatalysis and tribomechanical effect

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2025-02-21 DOI:10.1016/j.triboint.2025.110608

Zhikai Fan , Shanshan Wang , Yihui Xiang , Yanfei Liu , Zeyang Yu , Xiangyu Ge , Wenzhong Wang

{"title":"Synergetic lubrication between MoDTC and TiO2 nano-additive: Dynamic evolution of tribofilm induced by tribocatalysis and tribomechanical effect","authors":"Zhikai Fan , Shanshan Wang , Yihui Xiang , Yanfei Liu , Zeyang Yu , Xiangyu Ge , Wenzhong Wang","doi":"10.1016/j.triboint.2025.110608","DOIUrl":null,"url":null,"abstract":"<div><div>Molybdenum dithiocarbamate (MoDTC) can significantly reduce friction and wear through the formation of lubricious tribofilm by decomposition of MoDTC, but it is difficult to regulate the tribochemical behaviors. In this study, TiO<sub>2</sub> nanoparticles are used as nano-additive combined with MoDTC, leading to reduced friction and wear under 50 N. The addition of TiO<sub>2</sub> with proper concentration can promote the formation of lubricious Mo-content tribofilm. Meanwhile, TiO<sub>2</sub> in tribofilm can also lead to enhanced wear-resistance. Moreover, the dynamic evolution of the tribofilm is also investigated under varied conditions to elucidate the synergetic lubrication mechanisms between MoDTC and TiO<sub>2</sub>. These findings offer fundamental insights of the lubrication mechanisms of MoDTC when combined with nano-additives from both tribochemical and tribomechanical viewpoints.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110608"},"PeriodicalIF":6.1000,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tribology International","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0301679X25001033","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

Molybdenum dithiocarbamate (MoDTC) can significantly reduce friction and wear through the formation of lubricious tribofilm by decomposition of MoDTC, but it is difficult to regulate the tribochemical behaviors. In this study, TiO₂ nanoparticles are used as nano-additive combined with MoDTC, leading to reduced friction and wear under 50 N. The addition of TiO₂ with proper concentration can promote the formation of lubricious Mo-content tribofilm. Meanwhile, TiO₂ in tribofilm can also lead to enhanced wear-resistance. Moreover, the dynamic evolution of the tribofilm is also investigated under varied conditions to elucidate the synergetic lubrication mechanisms between MoDTC and TiO₂. These findings offer fundamental insights of the lubrication mechanisms of MoDTC when combined with nano-additives from both tribochemical and tribomechanical viewpoints.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.