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Hydrogen embrittlement of high strength steel under in situ corrosive charging conditions and tensile load
Author(s) -
Scharf R.,
Muhr A.,
Stellnberger K.H.,
Faderl J.,
Holzer C.,
Mori G.
Publication year - 2017
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.201508655
Subject(s) - hydrogen embrittlement , galvanization , ultimate tensile strength , materials science , hydrogen , embrittlement , metallurgy , zinc , electrolyte , high strength steel , tensile testing , composite material , corrosion , electrode , chemistry , layer (electronics) , organic chemistry
It is known that advanced and ultra‐high strength steel grades (AHSS and UHSS) are susceptible to hydrogen embrittlement under certain test conditions [1][M. Loidl, 2011], [2][J. Rehrl, 2014]. In this study, punched hole specimens for constant load testing with in situ hydrogen charging were used to quantify the effect of different corrosive conditions. Flowing or stagnant electrolyte (5% NaCl) conditions were established and time to failure was recorded as a function of applied tensile stress. The pH of the solution was set at 2, 7, and 12. Bare and zinc‐galvanized (EG) specimens were used. Hydrogen uptake as a function of immersion time was characterized.