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Fatigue behaviors of AISI 316L stainless steel with a gradient nanostructured surface layer
H. W.; Wang Huang, Z. B.; Lu, J.; Lu, K.
2015
Source PublicationActa Materialia
ISSN1359-6454
Volume87Pages:150-160
AbstractBy means of surface mechanical rolling treatment (SMRT), a gradient nanostructured (GNS) surface layer was formed on AISI 316L stainless steel. The mean grain size is similar to 30 nm in the topmost surface layer and increases with depth. Tension compression fatigue measurements were performed on the SMRT sample under the stress-controlled mode. In comparison with the coarse-grained sample, the fatigue strength of the SMRT sample is significantly enhanced in both the low- and high-cycling fatigue regimes. Meanwhile, the fatigue ratio is evidently elevated with an increasing tensile strength in the SMRT sample. The initiation and growth of cracks, the cyclic deformation behaviors, as well as effects of strength and residual stresses, have been investigated to clarify the fatigue mechanism of the SMRT sample. The results emphasized the GNS surface layer enhances the fatigue property by suppressing the initiation of cracks and accommodating a remarkable cyclic plastic strain amplitude. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
description.department[huang, h. w. ; wang, z. b. ; lu, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [lu, j.] city univ hong kong, dept mfg engn & engn management, hong kong, hong kong, peoples r china. [lu, k.] nanjing univ sci & technol, herbert gleiter inst nanosci, nanjing 210094, jiangsu, peoples r china. ; wang, zb (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; zbwang@imr.ac.cn
KeywordGradient Nanostructures Surface Mechanical Rolling Treatment Aisi 316l Stainless Steel Fatigue Strain Localization High-cycle Fatigue Mechanical Attrition Treatment Severe Plastic-deformation Induced Residual-stresses Nanocrystalline Metals Grinding Treatment Grained Copper Alloy Resistance Stability
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73823
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
H. W.,Wang Huang, Z. B.,Lu, J.,et al. Fatigue behaviors of AISI 316L stainless steel with a gradient nanostructured surface layer[J]. Acta Materialia,2015,87:150-160.
APA H. W.,Wang Huang, Z. B.,Lu, J.,&Lu, K..(2015).Fatigue behaviors of AISI 316L stainless steel with a gradient nanostructured surface layer.Acta Materialia,87,150-160.
MLA H. W.,et al."Fatigue behaviors of AISI 316L stainless steel with a gradient nanostructured surface layer".Acta Materialia 87(2015):150-160.
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