A study of the heterogeneity of plastic deformation in IF steel by EBSD

被引：255

作者：

Allain-Bonasso, Nathalie ^{[1
]}

Wagner, Francis ^{[1
]}

Berbenni, Stephane ^{[1
]}

Field, David P. ^{[2
]}

机构：

[1] Univ Paul Verlaine Metz, CNRS, UMR 7239, LEM3, F-57045 Metz, France

[2] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 548卷

关键词：

Plastic deformation; EBSD; Grain size distribution; Orientation distribution; IF steel; GRAIN-SIZE DISTRIBUTION; DIFFRACTION; EVOLUTION; ALUMINUM; STRAIN; FIELD; POLYCRYSTALS; DEPENDENCE; TEXTURES; CRYSTAL;

D O I：

10.1016/j.msea.2012.03.068

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The objective of this experimental study is to recognize the roles of several quantities like grain size and orientation distributions on the development of plastic heterogeneities. The measurements are performed on an interstitial free (IF) steel by Electron Back Scattered Diffraction (EBSD) at different states of deformation (from 0% to 17% tensile deformation). For each level of deformation, EBSD maps are performed before and after the deformation on exactly the same area. Several parameters as the Grain Orientation Spread (GOS), the Grain Orientation Spread over the grain Diameter (GOS/D) and the Geometrically Necessary Dislocation (GND) densities can thus be determined for different subpopulations of grains ranked as a function of individual grains sizes to follow the evolution of the deformed-induced microstructure. It appears that none of these grain scale measures are deciding and that grain neighborhood interactions play an important role. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：56 / 63

页数：8

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