Multilayer modelling of stainless steel with a nanocrystallised superficial layer

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:536

Article

Petit, J.²  Waltz, L.¹  Montay, G.³  Retraint, D.³  Roos, A.³  Francois, M.³ 

[1] Univ Montpellier 2, Lab Mecan & Genie Civil Montpellier LMGC, F-34000 Montpellier, France

[2] Univ Paris Ouest, EA4416, LEME, F-92410 Ville Davray, France

[3] Univ Technol Troyes, Inst Charles Delaunay, LASMIS, CNRS,UMR 6279, F-10010 Troyes, France

关键词: Nanocrystalline materials;    SMAT;    Localisation;    Electronic Speckle Pattern Interferometry (ESPI);    Tensile test;    Modelling;   

DOI  :  10.1016/j.msea.2011.12.085

来源: Elsevier

【 摘 要 】

In order to obtain the macroscopic mechanical response of a 316L stainless steel, nanocrystallised by Surface Mechanical Attrition Treatment (SMAT), a multilayer model is proposed. The constitutive behaviour of each layer is determined from tensile tests or by an inverse method and its thickness is evaluated from Scanning and Transmission Electron Microscopy (SEM and TEM) analyses and local hardness measurements. The consistency of the model is verified by its ability to predict the strain at which diffuse necking occurs. (C) 2012 Elsevier B.V. All rights reserved.

【 授权许可】

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