The main factor influencing the tensile properties of surface nano-crystallized graded materials

doi:10.1016/j.msea.2010.07.064

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	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
发表期刊	Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
	2010
卷号	527 期号:26 页码:7040-7044
ISSN	0921-5093
摘要	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.
关键词	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
收录类别	SCI
语种	英语
WOS记录号	WOS:000283113200034
关键词[WOS]	MECHANICAL ATTRITION TREATMENT ; SEVERE PLASTIC-DEFORMATION ; KELVIN PROBING TECHNIQUE ; STAINLESS-STEEL ; NANOCRYSTALLINE SURFACE ; FATIGUE RESISTANCE ; RESIDUAL-STRESSES ; ULTRAFINE GRAIN ; YIELD STRAIN ; NICKEL-ALLOY
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者	NSFC [10972220, 10732050, 10721202] ; CAS [KJCX2-YW-M04] ; [PolyU7/CRF/08]
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/43453
专题	非线性力学国家重点实验室
通讯作者	Chen SH
推荐引用方式 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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