| Microstructural origin of high scratch resistance in a gradient nanograined 316L stainless steel | |
| Liang, Fei1; Xu, Xiaoxiao1; Wang, Pengfei2; Zhang, Yaping1; Han, Zhong2; Chen, Xiang1 | |
| Corresponding Author | Chen, Xiang(xiang.chen@njust.edu.cn) |
| 2022-11-01 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 220Pages:5 |
| Abstract | 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. |
| Keyword | 316L stainless steel Gradient nanostructures Scratch resistance Microstructural origin |
| Funding Organization | National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province, China ; Fundamental Research Funds for the Central Universities |
| DOI | 10.1016/j.scriptamat.2022.114895 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[52001165] ; Natural Science Foundation of Jiangsu Province, China[BK20200475] ; Fundamental Research Funds for the Central Universities[30921011215] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000830789000001 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174675 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Chen, Xiang |
| Affiliation | 1.Nanjing Univ Sci & Technol, Nano & Heterogeneous Mat Ctr, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| Recommended Citation 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. |
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