| Issue |
MATEC Web Conf.
Volume 417, 2025
2025 RAPDASA-RobMech-PRASA-AMI Conference: Bridging the Gap between Industry & Academia - The 26th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, co-hosted by CSIR and Tshwane University of Technology, Pretoria
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| Article Number | 03009 | |
| Number of page(s) | 11 | |
| Section | Materials Engineering | |
| DOI | https://doi.org/10.1051/matecconf/202541703009 | |
| Published online | 25 November 2025 | |
A study of the uptake of hydrogen in pipeline steels using accelerated laboratory methodologies
1 Department of Materials Science and Metallurgical Engineering, University of Pretoria, South Africa,
2 Advanced Materials Division, physical Metallurgy group, MINTEK, South Africa.
* pkambilinya2@gmail.com
* tresormapoli@gmail.com
* ericp692@gmail.com
The study investigates hydrogen uptake in two pipeline steels using accelerated laboratory methods. Thermal desorption mass spectrometry (TDMS) was used for diffusible hydrogen content and hydrogen trap analysis. The optimal electrolyte for electrochemical charging was found to be 1.0 N H2SO4 + 3% NH2SCN. TDMS confirmed hydrogen uptake, with the highest levels observed for the time between 36 and 48 hours of charging. The study of hydrogen permeability compared the steels’ susceptibility to hydrogen uptake, with the steel A showing a greater capacity for hydrogen uptake than steel B.
© The Authors, published by EDP Sciences, 2025
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