| The main factor influencing the tensile properties of surface nano-crystallized graded materials | |
Li JJ(李建军); Chen SH(陈少华) ; Wu XL(武晓雷); Soh A; Lu JA; Chen SH
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| Source Publication | Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
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| 2010 | |
| Volume | 527Issue:26Pages:7040-7044 |
| ISSN | 0921-5093 |
| Abstract | The improved mechanical properties of surface nano-crystallized graded materials produced by surface severe plastic deformation ((SPD)-P-2) are generally owing to the effects of the refined structure, work-hardened region and compressive residual stress. However, during the (SPD)-P-2 process, residual stress is produced simultaneously with work-hardened region, the individual contribution of these two factors to the improved mechanical properties remains unclear. Numerical simulations are carried out in order to answer this question. It is found that work hardening predominates in improving the yield strength and the ultimate tensile strength of the surface nano-crystallized graded materials, while the influence of the residual stress mainly emerges at the initial stage of deformation and decreases the apparent elastic modulus of the surface nano-crystallized graded materials, which agrees well with the experimental results. (C) 2010 Elsevier B.V. All rights reserved. |
| Keyword | Surface Nano-crystallized Graded Material Residual Stress Work Hardening Finite Element Method Mechanical Attrition Treatment Severe Plastic-deformation Kelvin Probing Technique Stainless-steel Nanocrystalline Surface Fatigue Resistance Residual-stresses Ultrafine Grain Yield Strain Nickel-alloy |
| DOI | 10.1016/j.msea.2010.07.064 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000283113200034 |
| WOS Keyword | MECHANICAL ATTRITION TREATMENT ; SEVERE PLASTIC-DEFORMATION ; KELVIN PROBING TECHNIQUE ; STAINLESS-STEEL ; NANOCRYSTALLINE SURFACE ; FATIGUE RESISTANCE ; RESIDUAL-STRESSES ; ULTRAFINE GRAIN ; YIELD STRAIN ; NICKEL-ALLOY |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | NSFC [10972220, 10732050, 10721202] ; CAS [KJCX2-YW-M04] ; [PolyU7/CRF/08] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/43453 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Chen SH |
| Recommended Citation GB/T 7714 | Li JJ,Chen SH,Wu XL,et al. The main factor influencing the tensile properties of surface nano-crystallized graded materials[J]. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,2010,527,26,:7040-7044. |
| APA | 李建军,陈少华,武晓雷,Soh A,Lu JA,&Chen SH.(2010).The main factor influencing the tensile properties of surface nano-crystallized graded materials.Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,527(26),7040-7044. |
| MLA | 李建军,et al."The main factor influencing the tensile properties of surface nano-crystallized graded materials".Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 527.26(2010):7040-7044. |
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