Effect of grain refinement on the mechanical behaviour of ferritic steels: Evolution of isotropic hardening and kinematic hardening

被引：25

作者：

Bouaziz, O. ^{[1
]}

Aouafi, A. ^{[2
]}

Allain, S. ^{[1
]}

机构：

[1] Arcelor Res, Voie Romaine BP30320, F-57283 Maizieres Les Metz, France

[2] Univ Paris 13, PMTM, CNRS, UPR 9001, F-93430 Villetaneuse, France

来源：

NANOMATERIALS BY SEVERE PLASTIC DEFORMATION IV, PTS 1 AND 2 | 2008年 / 584-586卷

关键词：

grain size; Bauschinger effect; reverse shear test; modelling;

D O I：

10.4028/www.scientific.net/MSF.584-586.605

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

New experimental data related to the grain size and the Bauschinger effects have been obtained for ferritic steels with grain size in the range of 3.5-22 mu m. As the data show an increasing contribution of the kinematic hardening with grain size refinement, a new physical based model describing the isotropic hardening and the kinematic hardening is presented and validated with regard to the grain size. The consequences are discussed for fine grain metallic alloys.

引用

页码：605 / 609

页数：5

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