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Volume 14
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10.3390/met14050588
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Article

Effect of Hydrogen Charging on the Mechanical Properties of High-Strength Copper-Base Alloys, Austenitic Stainless Steel AISI 321, Inconel 625 and Ferritic Steel 1.4511

by
Jens Jürgensen
1,*,
Andreas Frehn
2,
Klaus Ohla
2,†,
Sandra Stolz
1 and
Michael Pohl
1
1
Institute for Materials—Materials Testing, Ruhr-University Bochum, 44801 Bochum, Germany
2
Materion Brush GmbH, 70499 Stuttgart, Germany
*
Author to whom correspondence should be addressed.
†
Now retired.
Metals 2024, 14(5), 588; https://doi.org/10.3390/met14050588
Submission received: 9 April 2024 / Revised: 8 May 2024 / Accepted: 14 May 2024 / Published: 17 May 2024
(This article belongs to the Special Issue Hydrogen Embrittlement of Metals and Alloys)
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Abstract

Hydrogen embrittlement (HE) poses the risk of premature failure for many metals, especially high-strength steels. Due to the utilization of hydrogen as an environmentally friendly energy source, efforts are made to improve the resistance to HE at elevated pressures and temperatures. In addition, applications in hydrogen environments might require specific material properties in terms of thermal and electrical conductivity, magnetic properties as well as corrosion resistance. In the present study, three high-strength Cu-base alloys (Alloy 25, PerforMet® and ToughMet® 3) as well as austenitic stainless AISI 321, Ni-base alloy IN 625 and ferritic steel 1.4511 are charged in pressurized hydrogen and subsequently tested by means of Slow Strain Rate Testing (SSRT). The results show that high-strength Cu-base alloys exhibit a great resistance to HE and could prove to be suitable for materials for a variety of hydrogen applications with rough conditions such as high pressure, elevated temperature and corrosive environments.
Keywords: hydrogen embrittlement; high-strength Cu-base alloys; pressure hydrogen charging; slow strain rate test; Thermal Desorption Mass Spectrometry hydrogen embrittlement; high-strength Cu-base alloys; pressure hydrogen charging; slow strain rate test; Thermal Desorption Mass Spectrometry

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MDPI and ACS Style

Jürgensen, J.; Frehn, A.; Ohla, K.; Stolz, S.; Pohl, M. Effect of Hydrogen Charging on the Mechanical Properties of High-Strength Copper-Base Alloys, Austenitic Stainless Steel AISI 321, Inconel 625 and Ferritic Steel 1.4511. Metals 2024, 14, 588. https://doi.org/10.3390/met14050588

AMA Style

Jürgensen J, Frehn A, Ohla K, Stolz S, Pohl M. Effect of Hydrogen Charging on the Mechanical Properties of High-Strength Copper-Base Alloys, Austenitic Stainless Steel AISI 321, Inconel 625 and Ferritic Steel 1.4511. Metals. 2024; 14(5):588. https://doi.org/10.3390/met14050588

Chicago/Turabian Style

Jürgensen, Jens, Andreas Frehn, Klaus Ohla, Sandra Stolz, and Michael Pohl. 2024. "Effect of Hydrogen Charging on the Mechanical Properties of High-Strength Copper-Base Alloys, Austenitic Stainless Steel AISI 321, Inconel 625 and Ferritic Steel 1.4511" Metals 14, no. 5: 588. https://doi.org/10.3390/met14050588

APA Style

Jürgensen, J., Frehn, A., Ohla, K., Stolz, S., & Pohl, M. (2024). Effect of Hydrogen Charging on the Mechanical Properties of High-Strength Copper-Base Alloys, Austenitic Stainless Steel AISI 321, Inconel 625 and Ferritic Steel 1.4511. Metals, 14(5), 588. https://doi.org/10.3390/met14050588

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