Digital image correlation studies for microscopic strain distribution and damage in dual phase steels

被引：298

作者：

Kang, Jidong ^{[1
]}

Ososkov, Yuriy ^{[1
]}

Embury, J. David ^{[1
]}

Wilkinson, David S. ^{[1
]}

机构：

[1] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada

来源：

SCRIPTA MATERIALIA | 2007年 / 56卷 / 11期

关键词：

microscopic strain mapping; digital image correlation; dual phase steel; damage; tensile properties;

D O I：

10.1016/j.scriptamat.2007.01.031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have measured the microscopic strain distribution of a dual phase steel at the grain scale, using digital image correlation based on scanning electron microscopy topography images at large strains. The results show how strain is partitioned between the ferritic and martensitic regions. We find that tempering changes the microscopic strain distribution considerably and that this correlates directly with the tensile properties, including the rate of damage accumulation and the consequent ductility of the material. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：999 / 1002

页数：4

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