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Significantly Enhanced Wear Resistance of an Ultrafine-Grained CrFeNi Medium-Entropy Alloy at Elevated Temperatures
Liang, Dingshan1,2; Zhao, Cancan1; Zhu, Weiwei1,3; Wei, Pengbo1,2; Jiang, Feilong1; Ren, Fuzeng1
2020-06-01
Source PublicationMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
ISSN1073-5623
Volume51Issue:6Pages:2834-2850
Abstract

The hardness and pin-on-disk sliding wear behavior of CrFeNi medium-entropy alloy (MEA) against Inconel alloy 718 at room and elevated temperatures were investigated. The results show that the hardness and coefficient of friction of CrFeNi MEA linearly decrease with elevating temperature. The wear rates at 300 °C and 600 °C are 40- and 150-times lower than that at room temperature (25 ± 1 °C), respectively. The wear rate of CrFeNi MEA at 600 °C is only ~ 25 pct of that of Inconel alloy 718. Surface microstructure evolution and wear mechanism were discussed in detail. The significantly enhanced wear resistance at elevated temperatures is mainly attributed to the formation of the glaze layer which consists of a dense equiaxed nanocrystalline oxide layer and a mechanically mixed layer of nanocrystalline oxides and partially oxidized pin and disk alloys.

DOI10.1007/s11661-020-05755-8
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000526622300002
Scopus ID2-s2.0-85083781258
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Cited Times [WOS]:4   [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.Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Kowloon, Clear Water Bay, 999077, Hong Kong
3.Institute of Applied Physics and Materials Engineering, Faculty of Science & Technology, University of Macau, 999078, Macao
Recommended Citation
GB/T 7714
Liang, Dingshan,Zhao, Cancan,Zhu, Weiwei,et al. Significantly Enhanced Wear Resistance of an Ultrafine-Grained CrFeNi Medium-Entropy Alloy at Elevated Temperatures[J]. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science,2020,51(6):2834-2850.
APA Liang, Dingshan,Zhao, Cancan,Zhu, Weiwei,Wei, Pengbo,Jiang, Feilong,&Ren, Fuzeng.(2020).Significantly Enhanced Wear Resistance of an Ultrafine-Grained CrFeNi Medium-Entropy Alloy at Elevated Temperatures.Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science,51(6),2834-2850.
MLA Liang, Dingshan,et al."Significantly Enhanced Wear Resistance of an Ultrafine-Grained CrFeNi Medium-Entropy Alloy at Elevated Temperatures".Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 51.6(2020):2834-2850.
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