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Determination of Hydrogen Transport Behaviour in Boron-Manganese Steels Using Different Methods and Boundary Conditions

Faculty of Mechanical Engineering, Institute of Material and Joining Technology, Otto von Guericke University Magdeburg, 39106 Magdeburg, Germany
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Metals 2019, 9(9), 1007; https://doi.org/10.3390/met9091007
Received: 30 July 2019 / Revised: 29 August 2019 / Accepted: 9 September 2019 / Published: 12 September 2019
Within the framework of the project "ELOBEV" (research of electrolytic coating systems for joining elements made of high-strength materials) funded by the Federal Ministry of Education and Research, a test methodology for the assessment of the danger of hydrogen-assisted and liquid metal-induced cracking for auxiliary joining elements is being developed. One working point of the project is the determination of the hydrogen transport behaviour in high-strength boron-manganese steels and their coating concepts. Permeation measurements under different boundary conditions are used to characterize the hydrogen transport in 22MnB5 and 37MnB4. The results are validated by thermal desorption analyses with a constant heating rate and an isothermal temperature control. Several methods for the determination of the diffusion velocity are investigated and the determined values are compared with each other. View Full-Text
Keywords: quenched and tempered steel; 22MnB5; 37MnB4; diffusion coefficient; thermal desorption analysis; permeation measurement quenched and tempered steel; 22MnB5; 37MnB4; diffusion coefficient; thermal desorption analysis; permeation measurement
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Kuhlmann, M.; Mitzschke, N.; Jüttner, S. Determination of Hydrogen Transport Behaviour in Boron-Manganese Steels Using Different Methods and Boundary Conditions. Metals 2019, 9, 1007.

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