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Achieving exceptional wear resistance in a compositionally complex alloy via tuning the interfacial structure and chemistry
Zhu,Weiwei1,2; Zhao,Cancan1; Zhang,Yiwen1; Kwok,Chi Tat2,3; Luan,Junhua4; Jiao,Zengbao5; Ren,Fuzeng1
2020-04-15
Source PublicationActa Materialia
ISSN1359-6454
Volume188Pages:697-710
AbstractTitanium alloys have been widely used for medical devices and structural applications. However, conventional titanium alloys often suffer from low resistance to wear, particularly at elevated temperatures. Herein, an equiatomic TiMoNb compositionally complex alloy (CCA) is shown to exhibit wear resistance comparable to alumina at room temperature (RT). Even at 600 °C, the alloy still shows an extremely low wear rate of the order of 10 mm/(N·m). The remarkable wear resistance is achieved via tuning the interfacial structure and chemistry in TiMoNb CCA, including nanostructuring, titanium segregation at the grain boundaries, and the formation of a high density of nanoscale coherent Ti-rich precipitates with cube-on-cube orientation relationship with the ultrafine-grained matrix. The present results provide significant insights into the design of novel alloys for service in harsh environments.
KeywordCompositionally complex alloy Interface Titanium alloys Wear
DOI10.1016/j.actamat.2020.02.039
URLView the original
Language英语
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorRen,Fuzeng
Affiliation1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Institute of Applied Physics and Materials Engineering,Faculty of Science & Technology,University of Macau,Macau,China
3.Department of Electromechanical Engineering,Faculty of Science and Technology,University of Macau,Macau,China
4.Center for Advanced Structural Materials,Department of Materials Science and Engineering,City University of Hong Kong,Hong Kong,Hong Kong
5.Department of Mechanical Engineering,The Hong Kong Polytechnic University,Hong Kong,Hong Kong
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Zhu,Weiwei,Zhao,Cancan,Zhang,Yiwen,et al. Achieving exceptional wear resistance in a compositionally complex alloy via tuning the interfacial structure and chemistry[J]. Acta Materialia,2020,188:697-710.
APA Zhu,Weiwei,Zhao,Cancan,Zhang,Yiwen,Kwok,Chi Tat,Luan,Junhua,Jiao,Zengbao,&Ren,Fuzeng.(2020).Achieving exceptional wear resistance in a compositionally complex alloy via tuning the interfacial structure and chemistry.Acta Materialia,188,697-710.
MLA Zhu,Weiwei,et al."Achieving exceptional wear resistance in a compositionally complex alloy via tuning the interfacial structure and chemistry".Acta Materialia 188(2020):697-710.
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