Simulation of hydrogen diffusion affected by stress-strain heterogeneity in polycrystalline stainless steel

被引：52

作者：

Ilin, Dmitrii N. ^{[1
]}

Saintier, Nicolas ^{[2
]}

Olive, Jean-Marc ^{[3
]}

Abgrall, Remi ^{[4
]}

Aubert, Isabelle ^{[1
]}

机构：

[1] Univ Bordeaux, UMR 5295, I2M, F-33405 Talence, France

[2] Arts & Metiers ParisTech, UMR 5295, I2M, Esplanade Arts & Metiers, F-33405 Talence, France

[3] CNRS, UMR 5295, F-33405 Talence, France

[4] INRIA Bordeaux Sud Ouest, F-33405 Talence, France

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 05期

关键词：

Hydrogen diffusion; Crystal plasticity; Finite elements calculations; Austenitic stainless steel; Embrittlement; BLUNTING CRACK-TIP; DISLOCATION INTERACTIONS; NUMERICAL SIMULATIONS; TRANSPORT; PLASTICITY; BEHAVIOR; GROWTH; METALS; IRON;

D O I：

10.1016/j.ijhydene.2013.11.065

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of microstructure-induced strain stress heterogeneity on the evolution of hydrogen distribution was studied on 316 L stainless steel. A crystal plasticity-transient hydrogen diffusion finite element analysis was developed. To reach the stress strain heterogeneity, synthetic microstructures were computed under uniaxial loading. The results show that hydrostatic stress gradients is the main cause of the hydrogen redistribution and the strain rate has a crucial effect on the redistribution degree. Statistical analysis of H-segregation reveals clustering of H-enriched zones at the mesoscopic scale. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：2418 / 2422

页数：5

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