Hydrogen Interaction with Residual Stresses in Steel Studied by Synchrotron X-Ray Diffraction

被引：7

作者：

Dabah, Eitan ^{[1
]}

Kannengiesser, Thomas ^{[1
]}

Eliezer, Dan ^{[2
]}

Boellinghaus, Thomas ^{[1
]}

机构：

[1] BAM, Fed Inst Mat Res & Testing, Berlin, Germany

[2] Ben Gurion Univ Negev, Dept Mat Engn, Beer Sheva, Israel

来源：

MECHANICAL STRESS EVALUATION BY NEUTRONS AND SYNCHROTRON RADIATION VI | 2014年 / 772卷

关键词：

Residual stresses; hydrogen embrittlement; Supermartensitic steel; Energy Dispersive Diffraction; CORROSION CRACKING; PIPELINE STEELS;

D O I：

10.4028/www.scientific.net/MSF.772.91

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The residual stresses state in a material has an important role in the mechanism of cracking, induced or assisted by hydrogen. In this contribution, the beamline EDDI at BESSY II in Berlin was used in order to investigate the influence of hydrogen upon the residual stresses state existing in a Supermartensitic stainless steel sample. The method used for calculating the residual stresses is the "sin(2)psi" method. This method involves the usage of high energy X-ray diffraction in order to measure the residual stress state and magnitude. It was found that hydrogen presence has a significant influence upon the magnitude of the residual stresses, as its value decreases with high hydrogen content. This effect is reversible, as hydrogen desorbs from the sample the residual stress magnitude gains its initial value before hydrogen charging.

引用

页码：91 / +

页数：3

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