Abstract
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.
Original language | English |
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Article number | 112219 |
Number of pages | 16 |
Journal | Corrosion science |
Volume | 235.2024 |
Issue number | 15 July |
DOIs | |
Publication status | E-pub ahead of print - 17 Jun 2024 |
Bibliographical note
Publisher Copyright: © 2024 The Author(s)Keywords
- austenitic stainless steel
- high-pressure charging
- hydrogen embrittlement
- Hydrogen uptake