Hydrogen environment embrittlement of orbital welded austenitic stainless steels at-50°C

被引：13

作者：

Naumann, Joerg ^{[2
]}

Michler, Thotsten ^{[1
]}

机构：

[1] Adam Opel GmbH, Russelsheim, Germany

[2] BMW AG, Munich, Germany

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2009年 / 34卷 / 15期

关键词：

Austenitic stainless steel; Hydrogen embrittlement; Welding; Delta-ferrite; LOW-TEMPERATURES; MICROSTRUCTURE; MARTENSITE; TYPE-316; FERRITE; GAS;

D O I：

10.1016/j.ijhydene.2009.05.081

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：

Different stainless steels were TIG orbital welded resulting in delta-ferrite contents up to 5% in the weld seam. Tensile specimens tested in He atmosphere did fracture at the fusion line/heat affected zone (FL/HAZ), which is the typical failure mode for welded structures. In contrast, all specimens (except the one made of 1.4301) tested in H-2 did not fracture in the FL/HAZ but in the base material. These results clearly show that for the tests performed here delta-ferrite contents up to 5% did not enhance susceptibility to HEE compared to the base material. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：6478 / 6483

页数：6

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