Formation mechanism and wear behavior of gradient nanostructured Inconel 625 alloy

doi:10.1016/S1003-6326(22)65918-1

IMR OpenIR

	Formation mechanism and wear behavior of gradient nanostructured Inconel 625 alloy
	Gao, Yu-bi 1,2,3; Li, Xiu-yan 4; Ma, Yuan-jun 1,2,4; Kitchen, Matthew 3; Ding, Yu-tian 1,2; Luo, Quan-shun 3
通讯作者	Ding, Yu-tian(dingyt@lut.edu.cn) ; Luo, Quan-shun(q.luo@shu.ac.uk)
	2022-06-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	32 期号:6 页码:1910-1925
摘要	The formation mechanism and wear behavior of a gradient nanostructured (GNS) Inconel 625 alloy were investigated using SEM, TEM and ball-on-disc sliding wear tester. The results show that surface mechanical grinding treatment (SMGT) induced an approximately 800 mu m-deep gradient microstructure, consisting of surface nano-grained, nano-laminated, nano-twined, and severely deformed layers, which resulted in a reduced gradient in micro-hardness from 6.95 GPa (topmost surface) to 2.77 GPa (coarse-grained matrix). The nano-grained layer resulted from the formation of high-density nano-twins and subsequent interaction between nano-twins and dislocations. The width and depth of the wear scar, wear loss volume, and wear rate of the SMGT-treated sample were smaller than those of untreated coarse-grained sample. Moreover, the wear mechanisms for both samples were mainly abrasive wear and adhesive wear, accompanied with mild oxidation wear. The notable wear resistance enhancement of the GNS Inconel 625 alloy was attributed to the high micro-hardness, high residual compressive stress, and high strain capacity of the GNS surface layer.
关键词	Inconel 625 alloy surface mechanical grinding treatment gradient nanostructure formation mechanism wear behavior residual stress
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Program for Major Projects of Science and Technology in Gansu Province, China ; Hongliu First-class Discipline Construction Plan of Lanzhou University of Technology, China ; Incubation Program of Excellent Doctoral Dissertation, Lanzhou University of Technology, China ; Lanzhou University of Technology Excellent Students Studying Abroad Learning Exchange Fund ; State Key Laboratory of Cooperation and Exchange Fund
DOI	10.1016/S1003-6326(22)65918-1
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFA07007003] ; National Natural Science Foundation of China[51661019] ; Program for Major Projects of Science and Technology in Gansu Province, China[145RTSA004] ; Hongliu First-class Discipline Construction Plan of Lanzhou University of Technology, China ; Incubation Program of Excellent Doctoral Dissertation, Lanzhou University of Technology, China ; Lanzhou University of Technology Excellent Students Studying Abroad Learning Exchange Fund ; State Key Laboratory of Cooperation and Exchange Fund
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000871787400001
出版者	ELSEVIER
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176360
专题	中国科学院金属研究所
通讯作者	Ding, Yu-tian; Luo, Quan-shun
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China 3.Sheffield Hallam Univ, Mat & Engn Res Inst, Sheffield S1 1WB, S Yorkshire, England 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yu-bi,Li, Xiu-yan,Ma, Yuan-jun,et al. Formation mechanism and wear behavior of gradient nanostructured Inconel 625 alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2022,32(6):1910-1925.
APA	Gao, Yu-bi,Li, Xiu-yan,Ma, Yuan-jun,Kitchen, Matthew,Ding, Yu-tian,&Luo, Quan-shun.(2022).Formation mechanism and wear behavior of gradient nanostructured Inconel 625 alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,32(6),1910-1925.
MLA	Gao, Yu-bi,et al."Formation mechanism and wear behavior of gradient nanostructured Inconel 625 alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 32.6(2022):1910-1925.