Hydrogen diffusivity, uptake and embrittlement of solution annealed and cold deformed austenitic stainless steel 1.4435 at hydrogen pressures up to 1000 bar and 200 °C
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In: Corrosion science, Vol. 235.2024, No. 15 July, 112219, 17.06.2024.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Hydrogen diffusivity, uptake and embrittlement of solution annealed and cold deformed austenitic stainless steel 1.4435 at hydrogen pressures up to 1000 bar and 200 °C
AU - Eichinger, Matthias
AU - Pengg, Johann
AU - Zwittnig, Dino
AU - Mori, Gregor Karl
N1 - Publisher Copyright: © 2024 The Author(s)
PY - 2024/6/17
Y1 - 2024/6/17
N2 - Austenitic stainless steel 1.4435, a candidate material for high-pressure tubing for hydrogen applications, was investigated in two different stages of cold deformation (0 and 27 %) regarding its hydrogen embrittlement tendency. The determination of effective diffusion coefficients revealed slightly increased diffusion kinetics at 60°C for the cold-reduced material (8.0 · 10−15 m²/s) compared to the solution annealed one (5.0 · 10−15 m²/s). High-pressure gaseous hydrogen charging shows no differences regarding the degree of cold deformation with a maximum hydrogen concentration of 112 wt.-ppm. Furthermore, a significant ductility loss expressed by the ratio of the reduction of area was observed.
AB - Austenitic stainless steel 1.4435, a candidate material for high-pressure tubing for hydrogen applications, was investigated in two different stages of cold deformation (0 and 27 %) regarding its hydrogen embrittlement tendency. The determination of effective diffusion coefficients revealed slightly increased diffusion kinetics at 60°C for the cold-reduced material (8.0 · 10−15 m²/s) compared to the solution annealed one (5.0 · 10−15 m²/s). High-pressure gaseous hydrogen charging shows no differences regarding the degree of cold deformation with a maximum hydrogen concentration of 112 wt.-ppm. Furthermore, a significant ductility loss expressed by the ratio of the reduction of area was observed.
KW - austenitic stainless steel
KW - high-pressure charging
KW - hydrogen embrittlement
KW - Hydrogen uptake
UR - http://www.scopus.com/inward/record.url?scp=85196284422&partnerID=8YFLogxK
U2 - 10.1016/j.corsci.2024.112219
DO - 10.1016/j.corsci.2024.112219
M3 - Article
VL - 235.2024
JO - Corrosion science
JF - Corrosion science
SN - 0010-938X
IS - 15 July
M1 - 112219
ER -
