Microstructural origin of high scratch resistance in a gradient nanograined 316L stainless steel

doi:10.1016/j.scriptamat.2022.114895

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructural origin of high scratch resistance in a gradient nanograined 316L stainless steel
	Liang, Fei 2; Xu, Xiaoxiao 2; Wang, Pengfei 1; Zhang, Yaping 2; Han, Zhong 1; Chen, Xiang 2
刊名	SCRIPTA MATERIALIA
	2022-11-01
卷号	220 页码:5
关键词	316L stainless steel Gradient nanostructures Scratch resistance Microstructural origin
ISSN号	1359-6462
DOI	10.1016/j.scriptamat.2022.114895
通讯作者	Chen, Xiang(xiang.chen@njust.edu.cn)
英文摘要	Surface gradient nanostructures can be implemented in metallic materials to offer outstanding resistance to sliding friction and wear, but their scratch resistance and underlying anti-scratch mechanisms remain unknown. In this study, the scratch behavior and linked structure modification of a gradient nanograined 316L stainless steel were investigated and compared to the coarse-grained and the nanograined counterparts. After a single high-load scratch, inhomogeneous nanostructures are formed ahead of the indenter in the coarse-grained and nanograined samples, predominantly leading to mechanical incompatibility, crack nucleation and subsurface peeling-off. By contrast, the gradient nanograined sample exhibits superior scratch resistance without surface and subsurface cracking, thanks to strain delocalization associated with stabilized gradient nanostructure during scratching. This work forges the links between scratch-induced microstructural origin and high scratch resistance for gradient nanograined materials under extremely high tribological stress.
资助项目	National Natural Science Foundation of China[52001165] ; Natural Science Foundation of Jiangsu Province, China[BK20200475] ; Fundamental Research Funds for the Central Universities[30921011215]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000830789000001
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province, China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174674]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen, Xiang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Nanjing Univ Sci & Technol, Nano & Heterogeneous Mat Ctr, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
推荐引用方式 GB/T 7714	Liang, Fei,Xu, Xiaoxiao,Wang, Pengfei,et al. Microstructural origin of high scratch resistance in a gradient nanograined 316L stainless steel[J]. SCRIPTA MATERIALIA,2022,220:5.
APA	Liang, Fei,Xu, Xiaoxiao,Wang, Pengfei,Zhang, Yaping,Han, Zhong,&Chen, Xiang.(2022).Microstructural origin of high scratch resistance in a gradient nanograined 316L stainless steel.SCRIPTA MATERIALIA,220,5.
MLA	Liang, Fei,et al."Microstructural origin of high scratch resistance in a gradient nanograined 316L stainless steel".SCRIPTA MATERIALIA 220(2022):5.