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Open AccessArticle

Investigation of the Pressure Dependent Hydrogen Solubility in a Martensitic Stainless Steel Using a Thermal Agile Tubular Autoclave and Thermal Desorption Spectroscopy

by 1,†, 2,†, 1,† and 2,*,†,‡
1
Robert Bosch GmbH—Corporate Sector Research and Advance Engineering, 71272 Renningen, Germany
2
Technische Hochschule Köln, 50679 Köln, Germany
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Current address: Technische Hochschule Köln, Campus Deutz, Betzdorfer Straße 2, 50679 Köln, Germany.
Academic Editors: Jacques Huot and Thorsten Michler
Metals 2021, 11(2), 231; https://doi.org/10.3390/met11020231
Received: 13 December 2020 / Revised: 30 December 2020 / Accepted: 21 January 2021 / Published: 29 January 2021
Hydrogen is nowadays in focus as an energy carrier that is locally emission free. Especially in combination with fuel-cells, hydrogen offers the possibility of a CO2 neutral mobility, provided that the hydrogen is produced with renewable energy. Structural parts of automotive components are often made of steel, but unfortunately they may show degradation of the mechanical properties when in contact with hydrogen. Under certain service conditions, hydrogen uptake into the applied material can occur. To ensure a safe operation of automotive components, it is therefore necessary to investigate the time, temperature and pressure dependent hydrogen uptake of certain steels, e.g., to deduct suitable testing concepts that also consider a long term service application. To investigate the material dependent hydrogen uptake, a tubular autoclave was set-up. The underlying paper describes the set-up of this autoclave that can be pressurised up to 20 MPa at room temperature and can be heated up to a temperature of 250 °C, due to an externally applied heating sleeve. The second focus of the paper is the investigation of the pressure dependent hydrogen solubility of the martensitic stainless steel 1.4418. The autoclave offers a very fast insertion and exertion of samples and therefore has significant advantages compared to commonly larger autoclaves. Results of hydrogen charging experiments are presented, that were conducted on the Nickel-martensitic stainless steel 1.4418. Cylindrical samples 3 mm in diameter and 10 mm in length were hydrogen charged within the autoclave and subsequently measured using thermal desorption spectroscopy (TDS). The results show how hydrogen sorption curves can be effectively collected to investigate its dependence on time, temperature and hydrogen pressure, thus enabling, e.g., the deduction of hydrogen diffusion coefficients and hydrogen pre-charging concepts for material testing. View Full-Text
Keywords: hydrogen uptake; gaseous hydrogen; hydrogen sorption curves; thermal desorption spectroscopy; martensitic stainless steel; autoclave hydrogen uptake; gaseous hydrogen; hydrogen sorption curves; thermal desorption spectroscopy; martensitic stainless steel; autoclave
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MDPI and ACS Style

Fayek, P.; Esser, S.; Quiroz, V.; Kim, C.D. Investigation of the Pressure Dependent Hydrogen Solubility in a Martensitic Stainless Steel Using a Thermal Agile Tubular Autoclave and Thermal Desorption Spectroscopy. Metals 2021, 11, 231. https://doi.org/10.3390/met11020231

AMA Style

Fayek P, Esser S, Quiroz V, Kim CD. Investigation of the Pressure Dependent Hydrogen Solubility in a Martensitic Stainless Steel Using a Thermal Agile Tubular Autoclave and Thermal Desorption Spectroscopy. Metals. 2021; 11(2):231. https://doi.org/10.3390/met11020231

Chicago/Turabian Style

Fayek, Patrick; Esser, Sebastian; Quiroz, Vanessa; Kim, Chong D. 2021. "Investigation of the Pressure Dependent Hydrogen Solubility in a Martensitic Stainless Steel Using a Thermal Agile Tubular Autoclave and Thermal Desorption Spectroscopy" Metals 11, no. 2: 231. https://doi.org/10.3390/met11020231

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