期刊
THEORETICAL AND APPLIED FRACTURE MECHANICS
卷 86, 期 -, 页码 89-100出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tafmec.2016.09.005
关键词
Small Punch Test (SPT); Hydrogen Embrittlement (HE); Stress Corrosion Cracking (SCC)
In the present study, a new small punch test (SPT) methodology has been used to analyse the effect of hydrogen embrittlement on the tensile properties of three different grades of CrMoV steel: the base metal (CrMoV-1), weld metal (CrMoV-2) and this same weld metal subjected to an intermediate heat treatment (CrMoV-3). SPT results were compared with those obtained in standard tensile tests carried out in a hydrogen environment. Moreover, a new SPT methodology was used to analyse the environmental effects on a CrNiMn steel under cathodic protection and cathodic charge. Results obtained shows the usefulness of the SPT to estimate the grade of deterioration induced by hydrogen embrittlement, especially when a lack of testing material makes impossible the test of standard specimens. (C) 2016 Elsevier Ltd. All rights reserved.
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