| Microstructure Evolution and Tensile Properties of 304L Stainless Steel Subjected to Surface Mechanical Attrition Treatment | |
Jiang P(姜萍) ; Lu J; Wu XL(武晓雷); Jiang, P (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
| |
| Source Publication | NANOMATERIALS BY SEVERE PLASTIC DEFORMATION: NANOSPD5, PTS 1 AND 2 |
| 2011 | |
| Pages | 175-179 |
| Conference Name | 5th International Conference on Nanomaterials by Severe Plastic Deformation |
| Conference Date | MAR 21-25, 2011 |
| Conference Place | Nanjing, PEOPLES R CHINA |
| Abstract | A gradient nanostructured layer (GNsL) was generated on the two sides of bulk sample in 304L stainless steel by means of the surface mechanical attrition treatment. The microstructure of the GNsL was characterized via TEM observation. The prominent microstructural features involve the intersection of multi-system twin operation, subdividing the original grains into blocks, a martensite transformation mainly occurring at the interface of the twins as well, and the randomly orientated nanocrystallites at the top of surface. After annealing at 750 degrees C for 10 min, recovery had occurred and the dislocation density was much reduced. The vast majority of the grains at the top surface were in the nanocrystalline/ultrafine range, with some recrystallization regions. The uniaxial tensile tests were performed to obtain the mechanical property of bulk samples with GNsL. The yield strength was about 2 times higher than that of the coarse-grained counterpart, but with a decrease in uniform elongation and elongation to failure as well. The relationship between the microstructure and mechanical property was discussed in detail. |
| Keyword | Surface Mechanical Attrition Treatment 304l Stainless Steel Gradient Nanostructured Layer Mechanical Twinning Mechanical Properties |
| WOS ID | WOS:000299234300029 |
| Department | LNM材料介观力学性能的表征 |
| Funding Organization | Nanjing Univ Sci & Technol |
| URL | 查看原文 |
| Indexed By | CPCI-S ; EI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/45249 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Jiang, P (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Jiang P,Lu J,Wu XL,et al. Microstructure Evolution and Tensile Properties of 304L Stainless Steel Subjected to Surface Mechanical Attrition Treatment[C]NANOMATERIALS BY SEVERE PLASTIC DEFORMATION: NANOSPD5, PTS 1 AND 2,2011:175-179. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Conf2011-011.pdf（2515KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment