TY - JOUR

T1 - Dependence of the mechanical properties of a metastable austenitic stainless steel in high-pressure hydrogen gas on machining-induced defects

AU - Safyari, Mahdieh

AU - Moshtaghi, Masoud

N1 - Publisher Copyright: © 2023 Elsevier B.V.

PY - 2023/6/1

Y1 - 2023/6/1

N2 - The susceptibility of metastable 304L to embrittlement in a high-pressure gaseous hydrogen environment was studied from the viewpoint of changes in mechanical properties. The high pressure hydrogen gas leads to deterioration of mechanical properties, which may be accelerated by the presence of surface defects. The tensile specimens were cut with different machining parameters to change the density of the different defects caused by the machining. The maximum dislocation density caused by machining, rather than the maximum strain-induced martensite increased the sensitivity to hydrogen embrittlement.

AB - The susceptibility of metastable 304L to embrittlement in a high-pressure gaseous hydrogen environment was studied from the viewpoint of changes in mechanical properties. The high pressure hydrogen gas leads to deterioration of mechanical properties, which may be accelerated by the presence of surface defects. The tensile specimens were cut with different machining parameters to change the density of the different defects caused by the machining. The maximum dislocation density caused by machining, rather than the maximum strain-induced martensite increased the sensitivity to hydrogen embrittlement.

UR - http://www.scopus.com/inward/record.url?scp=85150056484&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2023.134149

DO - 10.1016/j.matlet.2023.134149

M3 - Article

VL - 340.2023

JO - Materials letters

JF - Materials letters

SN - 0167-577X

IS - 1 June

M1 - 134149

ER -