Study on Friction and Wear Behavior of Inconel 625 Superalloy during Hot Extrusion
Wang, Yanjiang1; Zhao, Sixiang2; Jia, Zhi1,2; Ji, Jinjin3; Liu, Dexue2; Guo, Tingbiao2; Ding, Yutian2
2020-02-27
Source PublicationADVANCES IN MATERIALS SCIENCE AND ENGINEERING
ISSN1687-8434
Volume2020
Abstract

Friction during the hot extrusion of Inconel 625 superalloy tubes causes severe wear of the mold and plays a decisive role in the quality of the workpieces. In this paper, a ball-to-disk method was utilized to investigate the tribological behavior of Inconel 625 using two different tribological pairs, i.e., GCr15 and Si3N4, at room and elevated temperatures. Friction coefficient, specific wear rate, and morphology of worn surfaces were systematically characterized. It was found that the friction coefficients for both tribological pairs generally increased as the testing temperature increased, while the specific wear rate increased firstly and then decreased with the rise of temperature. Along with the increasing sliding speed, the friction coefficient between Inconel 625 and Si3N4 decreased monotonically, while the specific wear rate increased firstly and then decreased. Under any given testing condition, the friction coefficient and specific wear rate of the Inconel 625 for Inconel/Si3N4 pair are less than those of the Inconel/GCr15 pair. The main wear mechanisms between GCr15 and Inconel 625 are adhesive and fatigue wear at all testing temperatures. The wear mechanisms between Si3N4 and Inconel 625 are adhesive and abrasive wear at room temperature but fatigue wear at 500 degrees C. Our findings indicate that the use of ceramic molds in the hot extrusion of Inconel 625 may significantly improve the surface qualities of the product and reduce the wear of the mold.

KeywordAdhesives Extrusion Friction Molds Morphology Silicon Silicon compounds Superalloys Thermal fatigue Tribology
DOI10.1155/2020/5453703
Indexed BySCI ; SCIE ; EI
Language英语
Funding ProjectNational Nature Science Foundation of China[51665032][51664041] ; Science Foundation for Distinguished Young Scholars of Gansu Province[18JR3RA134]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000522102200002
PublisherHINDAWI LTD
EI Accession Number20201108296253
EI KeywordsNitrogen compounds
EI Classification Number531 Metallurgy and Metallography - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 931 Classical Physics ; Quantum Theory ; Relativity - 951 Materials Science
Source libraryWOS
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lut.edu.cn/handle/2XXMBERH/64168
Collection省部共建有色金属先进加工与再利用国家重点实验室
材料科学与工程学院
Corresponding AuthorJia, Zhi
Affiliation1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China;
2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China;
3.Lanzhou Inst Technol, Sch Mat Engn, Lanzhou 730050, Peoples R China
First Author AffilicationColl Mat Sci & Engn
Corresponding Author AffilicationColl Mat Sci & Engn;  State Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
First Signature AffilicationColl Mat Sci & Engn
Recommended Citation
GB/T 7714
Wang, Yanjiang,Zhao, Sixiang,Jia, Zhi,et al. Study on Friction and Wear Behavior of Inconel 625 Superalloy during Hot Extrusion[J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2020,2020.
APA Wang, Yanjiang.,Zhao, Sixiang.,Jia, Zhi.,Ji, Jinjin.,Liu, Dexue.,...&Ding, Yutian.(2020).Study on Friction and Wear Behavior of Inconel 625 Superalloy during Hot Extrusion.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2020.
MLA Wang, Yanjiang,et al."Study on Friction and Wear Behavior of Inconel 625 Superalloy during Hot Extrusion".ADVANCES IN MATERIALS SCIENCE AND ENGINEERING 2020(2020).
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