Mechanical properties and anti-corrosion properties of thin aluminum-silicon coated 2000mpa press hardening steel

DOI

10.2991/978-94-6463-581-2_52How to use a DOI?

Keywords

Thin aluminum-silicon coating; Hot stamping; Hydrogen-induced delayed cracking; Corrosion

Abstract

Based on the important demand of energy saving and emission reduction, press hardening steels have been widely used in automobile. In order to avoid oxidation of the steel during hot stamping process, aluminum-silicon coating is used. The mechanical properties of thin aluminum-silicon coating press hardening steels with strength of 2000 MPa before and after hot stamping were studied. The coating structure, bending angle, low temperature impact toughness and hydrogen-induced delayed cracking of the steels were detected. The results show that the mechanical properties of thin coating steels are similar to those of conventional coating steels. The coating performance tests were carried out by phosphating and zirconium electrophoresis pretreatment respectively, and the results showed that the adhesion of the electrophoretic coatings by phosphating and zirconium electrophoresis pretreatment both met the requirements. Finally, the cyclic salt spray corrosion test was carried out in the conventional coating steels and thin coating steels after electrophoresis, and it was found that the erosion line width of the thin coating was larger.

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  - Jiayue Chen
AU  - Yong Liu
AU  - Zhongbiao Zhou
AU  - Weilin Cao
AU  - Xuejun Qi
AU  - Erwei Li
AU  - Mengqi Xu
AU  - Xufeng Qi
PY  - 2024
DA  - 2024/12/07
TI  - Mechanical properties and anti-corrosion properties of thin aluminum-silicon coated 2000mpa press hardening steel
BT  - Proceedings of the 7th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2024)
PB  - Atlantis Press
SP  - 423
EP  - 430
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-581-2_52
DO  - 10.2991/978-94-6463-581-2_52
ID  - Chen2024
ER  -