Change in Hydrogen Trapping Characteristics and Influence on Hydrogen Embrittlement Sensitivity in a Medium-Carbon, High-Strength Steel: The Effects of Heat Treatments

Author:

Tong Zhi1ORCID,Wang Hantong1,Zheng Wenyue1,Zhou Hongyu1ORCID

Affiliation:

1. National Center for Materials Service Safety, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China

Abstract

Medium-carbon, high-strength steels are widely used in the field of hydrogen energy because of their good mechanical properties, and they can be readily tailored by heat treatment processes such as the normalizing–tempering (N&T) and quenching–tempering (Q&T) methods. The hydrogen embrittlement (HE) susceptibility of a medium-carbon, high-strength steel was investigated utilizing microstructural characterization with scanning electron microscopy (SEM), the electron backscatter diffraction (EBSD) technique, and transmission electron microscopy (TEM). A study was also conducted on the steel’s hydrogen transport behavior as affected by the N&T and Q&T treatments. The steel contained more hydrogen traps, such as dislocations, grain boundaries, lath boundaries, and carbide interfaces, after the Q&T process, which was associated with a lower HE sensitivity when comparing the two treatments. In comparison, the N&T process produced larger-size and lesser-density carbides distributed along the grain boundaries, and this resulted in a relatively higher HE susceptibility, as revealed by the slow-strain-rate tensile (SSRT) tests of the hydrogen-charged steels and by the fractographic study of the fracture surface.

Funder

Beijing Municipal Science & Technology Commision

Publisher

MDPI AG

Reference58 articles.

1. Qadrdan, M., Abeysekera, M., Wu, N.J., and Jenkins, B. (2020). The Future of Gas Networks, Springer.

2. Fuel Cells and Hydrogen Joint Undertaking (2024, April 14). Hydrogen Roadmap Europe: A Sustainable Pathway for the European Energy Transition. Available online: https://www.h2knowledgecentre.com/content/researchpaper1125.

3. Androulaki, M. (2024, April 14). Towards an EU Hydrogen Economy: Policy and Energy Security Perspectives. Available online: https://policycommons.net/artifacts/2026247/towards-an-eu-hydrogen-economy/2778690/.

4. (2020). German site for Enapter electrolyser production. Fuel Cells Bull., 2020, 12.

5. The effect of absorbed hydrogen on the dissolution of steel;Thomas;Heliyon,2016

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