Role of microtexture in the interaction and coalescence of hydrogen-induced cracks

被引：32

作者：

Venegas, V. ^{[1
]}

Caleyo, F. ^{[1
]}

Baudin, T. ^{[2
]}

Hallen, J. M. ^{[1
]}

Penelle, R. ^{[2
]}

机构：

[1] IPN ESIQIE, Dept Ingn Met, Mexico City 07738, DF, Mexico

[2] Univ Paris 11, CNRS, UMR 8182, Lab Physicochim Etat Solide,ICMMO, F-91405 Orsay, France

来源：

CORROSION SCIENCE | 2009年 / 51卷 / 05期

关键词：

Steels; Modelling studies; Crack interaction; CRYSTALLOGRAPHIC TEXTURE; PIPELINE STEEL;

D O I：

10.1016/j.corsci.2009.02.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The role of microtexture in hydrogen-induced crack interaction and coalescence is investigated in line pipe steels using electron backscatter diffraction. Experimental evidence shows that, depending on the local grain orientation, crack interaction and coalescence can depart from the conditions predicted by the mixed-mode fracture mechanics of isotropic linear elastic materials. Stress simulation and microtexture analysis are used to explain the experimental observations. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1140 / 1145

页数：6

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