The effect of composite microalloying on the performance of hot press forming B-pillars
- DOI
- 10.2991/978-94-6463-581-2_38How to use a DOI?
- Keywords
- Niobium-vanadium composite microalloying; Hot press forming B-pillar; Three-point bending; Trolley collision; Hydrogen embrittlement sensitivity index
- Abstract
This article investigates the effect of niobium-vanadium composite microalloying on the performance of hot press forming B-pillars. Three-point bending experiments and trolley collision performance experiments on B-pillars were conducted. The results showed that during the three-point bending experiment on the B-pillar, the critical fracture strain increased from 0.537 of 22MnB5 to 0.857 of 22MnB5NbV; When the B-pillar fracture occurred, the displacement of the press head increased from 65mm to 82mm. During the trolley collision, the intrusion amount in the three key parts of the dummy’s chest, abdom, and public corresponding to the B-pillar is significantly decreased. The HESI (hydrogen embrittlement sensitivity index) was measured by sampling from three locations of the B-pillar, and 22MnB5NbV showed a significant decrease compared to 22MnB5. Composite microalloying effectively improves the safety of hot press forming B-pillars in the using, protects passenger space, and extending the service life of the B-pillar.
- 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.
Cite this article
TY - CONF AU - Mingtu Ma AU - Yan Zhao AU - Jingwei Li AU - Gang Liu AU - Xiang Tian AU - Yu Cheng PY - 2024 DA - 2024/12/07 TI - The effect of composite microalloying on the performance of hot press forming B-pillars BT - Proceedings of the 7th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2024) PB - Atlantis Press SP - 312 EP - 318 SN - 2590-3217 UR - https://doi.org/10.2991/978-94-6463-581-2_38 DO - 10.2991/978-94-6463-581-2_38 ID - Ma2024 ER -