Microstructural banding effects clarified through micrographic digital image correlation

被引：172

作者：

Tasan, C. C. ^{[1
,2
]}

Hoefnagels, J. P. M. ^{[1
]}

Geers, M. G. D. ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Dept Mech Engn, NL-5600 MB Eindhoven, Netherlands

[2] Mat Innovat Inst, Delft, Netherlands

来源：

SCRIPTA MATERIALIA | 2010年 / 62卷 / 11期

关键词：

Banding; Segregation; Steel; In situ tension test; Fracture; DUAL-PHASE STEELS; MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; TRIP STEELS; MORPHOLOGY;

D O I：

10.1016/j.scriptamat.2010.02.014

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Microstructural banding is commonly observed in commercial steels, but its effect on the global mechanical properties is still disputed in the literature. This letter investigates the influence of band morphology and banding phase properties from tensile tests for two limit cases (continuous hard band vs. discontinuous softer band), analysed from digital image correlation of in situ electron microscopy micrographs. The effects of band continuity and hardness are elucidated, yielding a clear detrimental influence especially for hard bands with a continuous morphology. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：835 / 838

页数：4

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