| Diffusion behavior of Cr in gradient nanolaminated surface layer on an interstitial-free steel | |
| Xie, S. L.1,2; Wang, Z. B.1; Lu, K.1 | |
| Corresponding Author | Wang, Z. B.(zbwang@imr.ac.cn) |
| 2019-03-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 35Issue:3Pages:460-464 |
| Abstract | Nanolaminated structures composed of low-angle grain boundaries (LAGBs) possess high thermal stability. In this paper, a gradient nanolaminated (GNL) surface layer with smooth finish was fabricated on an interstitial-free steel by means of surface mechanical rolling treatment. Microstructural observations demonstrated that the average lamellar thickness is about 80 nm in the topmost surface layer and increases with increasing depth. High thermal stability was confirmed in the GNL surface layer after annealing at 500 degrees C. Diffusion measurements showed that effective diffusivity of Cr in GNL layer is 4-6 orders of magnitude higher than lattice diffusivity within the temperature range from 400 to 500 degrees C. This might be attributed to numerous LAGBs or dislocation structures with a higher energy state in the GNL surface layer. This work demonstrates the possibility to advanced chromizing (or other surface alloying) processes of steels with formation of GNL surface layer, so that a thicker alloyed surface layer with a stable nanostructure is achieved. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Gradient nanolaminated structure Interstitial-free steel Diffusion Low-angle grain boundary Surface mechanical rolling treatment |
| Funding Organization | National Key Research and Development Program of China ; Shenyang National Laboratory for Materials Science |
| DOI | 10.1016/j.jmst.2018.09.043 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2017YFA0204401] ; Shenyang National Laboratory for Materials Science[2015RP04] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000454506800030 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131110 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Z. B. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Xie, S. L.,Wang, Z. B.,Lu, K.. Diffusion behavior of Cr in gradient nanolaminated surface layer on an interstitial-free steel[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(3):460-464. |
| APA | Xie, S. L.,Wang, Z. B.,&Lu, K..(2019).Diffusion behavior of Cr in gradient nanolaminated surface layer on an interstitial-free steel.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(3),460-464. |
| MLA | Xie, S. L.,et al."Diffusion behavior of Cr in gradient nanolaminated surface layer on an interstitial-free steel".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.3(2019):460-464. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment