Formation mechanism and wear behavior of gradient nanostructured Inconel 625 alloy

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

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Formation mechanism and wear behavior of gradient nanostructured Inconel 625 alloy
	GAO, Yu-bi 1,2,4; LI, Xiu-yan 3; MA, Yuan-jun 2,3,4; KITCHEN, Matthew 1; DING, Yu-tian 2,4; LUO, Quan-shun 1
刊名	Transactions of Nonferrous Metals Society of China (English Edition)
	2022-06-01
卷号	32 期号:6 页码:1910-1925
关键词	Adhesives Grinding (machining) Nanostructures Residual stresses Surface stress Wear of materials Wear resistance Ball-on-disk Coarse-grained Formation mechanism Gradient nanostructure Inconel 625 alloys Micro-hardness Nano-structured Sliding wear Surface mechanical grinding treatments Wear behaviors
ISSN号	1003-6326
DOI	10.1016/S1003-6326(22)65918-1
英文摘要	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 μm-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. © 2022 The Nonferrous Metals Society of China
语种	英语
出版者	Nonferrous Metals Society of China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159415]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Materials and Engineering Research Institute, Sheffield Hallam University, Sheffield; S1 1WB, United Kingdom; 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang; 110016, China 4.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, 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 (English Edition),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 (English Edition),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 (English Edition) 32.6(2022):1910-1925.