Research on the effect of hydrogen charging on the extreme tip bending performance of ultra high strength automotive steel plate

DOI

10.2991/978-94-6463-581-2_35How to use a DOI?

Keywords

Hydrogen charging; Extreme tip bending; Hydrogen embrittlement

Abstract

In this study, the effect of hydrogen charging treatment on the extreme tip bending performance of ultra-high strength automotive steel plates was investigated. After electrochemical hydrogenation, the extreme tip bending angle of the steel plate decreased to varying degrees, and the downward trend began to converge after 6 hours of hydrogenation. After 6 hours of hydrogen charging, the extreme tip bending angle of 22MnB5 bare plate decreased by 49.2%, 22MnB5-NbV by 36.7%, 34MnB5 by 49%, 34MnB5-V by 34.6%, and 34MnB5-Nb by 30.8% respectively. In addition, Al-Si coated plates need to be pre-bended treatment before the experiment to produce micro cracks on the surface to get the chance of the hydrogen getting into the plate. The influence of hydrogen overflow on the extreme tip bending angle was also studied, and it was found that the filled hydrogen will overflow completely after 24 hours. Therefore, this report summarizes the effect of hydrogen content on the extreme tip bending angle, hoping to provide positive guidance for future research on the hydrogen embrittlement resistance of high-strength steels.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Jian Wang
AU  - Hongzhou Lu
AU  - Xiangxing Deng
AU  - Lintao Gui
AU  - Aimin Guo
AU  - Feng Yang
AU  - Yan Zhao
PY  - 2024
DA  - 2024/12/07
TI  - Research on the effect of hydrogen charging on the extreme tip bending performance of ultra high strength automotive steel plate
BT  - Proceedings of the 7th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2024)
PB  - Atlantis Press
SP  - 279
EP  - 287
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-581-2_35
DO  - 10.2991/978-94-6463-581-2_35
ID  - Wang2024
ER  -