Stress partitioning behavior of multilayered steels during tensile deformation measured by in situ neutron diffraction

被引：103

作者：

Ojima, M. ^{[1
]}

Inoue, J. ^{[1
]}

Nambu, S. ^{[1
]}

Xu, P. G. ^{[2
]}

Akita, K. ^{[2
]}

Suzuki, H. ^{[2
]}

Koseki, T. ^{[1
]}

机构：

[1] Univ Tokyo, Dept Mat Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

来源：

SCRIPTA MATERIALIA | 2012年 / 66卷 / 3-4期

关键词：

Steels; Multilayers; Elastic behavior; Plastic deformation; Neutron diffraction; COMPOSITES; STRENGTH;

D O I：

10.1016/j.scriptamat.2011.10.018

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Stress partitioning in multilayered steels consisting of martensitic and austenitic layers was measured during tensile deformation by in situ neutron diffraction measurements to investigate the mechanism of the improved strength elongation balance. The deformation mode can be classified into three stages, and the results indicate that the applied stress is effectively transferred to the martensitic phase, because no stress concentration sites exist, owing to the multilayered structure. Hence, even as-quenched martensite deformed uniformly, resulting in improved strength elongation balance in multilayered steels. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：139 / 142

页数：4

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