Elastoplastic deformation of ferritic steel and cementite studied by neutron diffraction and self-consistent modelling

被引：183

作者：

Daymond, MR ^{[1
]}

Priesmeyer, HG

机构：

[1] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[2] Univ Kiel, Inst Expt & Angew Phys, Kiel, Germany

来源：

ACTA MATERIALIA | 2002年 / 50卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

neutron diffraction; elasto-plastic self-consistent model;

D O I：

10.1016/S1359-6454(02)00026-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A tensile specimen was machined from heat treated ferritic steel, with a small volume fraction of carbon in the form of cementite. In situ measurements of the strain response of multiple hkl lattice planes to an applied uniaxial tensile load were made using neutron diffraction, to macroscopic plastic strains of around 3%. The experimental results are compared with predictions from a self-consistent Hill-Hutchinson model modified to take into account the presence of the second phase. Good agreement was obtained between model and experimental data. The interpretation of residual stress measurements, for both single peak and Rietveld measurements is considered in light of these results. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1613 / 1626

页数：14

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