SIMS study on the surface chemistry of stainless steel AISI 304 cylindrical tensile test samples showing hydrogen embrittlement

被引：6

作者：

Izawa, C. ^{[1
]}

Wagner, S. ^{[1
]}

Martin, M. ^{[2
]}

Weber, S. ^{[2
]}

Bourgeon, A. ^{[3
]}

Pargeter, R. ^{[3
]}

Michler, T. ^{[4
]}

Pundt, A. ^{[1
]}

机构：

[1] Univ Gottingen, Inst Mat Phys, D-37077 Gottingen, Germany

[2] Ruhr Univ Bochum, Gemeinsame Forschergrp, Helmholtz Zentrum Berlin, D-44801 Bochum, Germany

[3] TWI Ltd, Cambridge CB21 6AL, England

[4] Adam Opel GmbH, D-65423 Russelsheim, Germany

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷

关键词：

Hydrogen embrittlement; Secondary ion mass spectrometry; Contamination; Oxide layer; FATIGUE; DEFORMATION; TEMPERATURE; NIOBIUM;

D O I：

10.1016/j.jallcom.2010.12.143

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 local surface chemistry of a low-Ni austenitic stainless steel AISI type 304 used for tensile testing in hydrogen atmosphere is characterized by secondary ion mass spectrometry (SIMS). A chemical map on cylindrical austenitic stainless steel samples can be obtained even after a tensile test. In an effort to obtain the proper chemical element distribution on the samples, the influence of contamination and sample orientation is discussed. An iron oxide on top of a chromium oxide layer is present and Si segregation at grain boundaries is detected. Oxides are judged to reduce the initial hydrogen attack but to be of minor importance for crack propagation during the embrittlement process. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：S885 / S890

页数：6