Study on Austenitizing Process in Hot Stamping of 2000 MPa Grade Ultra-High Strength Steel

S. Liu; Y. Feng; H. Q. Chen; X. Che; M. Cao; F. Yang

doi:10.2991/978-94-6463-114-2_3

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Study on Austenitizing Process in Hot Stamping of 2000 MPa Grade Ultra-High Strength Steel

Authors

S. Liu¹^{, *}, Y. Feng², H. Q. Chen¹, X. Che¹, M. Cao¹, F. Yang¹

¹School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, China

²China Automotive Engineering Research Institute Co., Ltd, Chongqing, 554399, China

^*Corresponding author. Email: liushuang@tyust.edu.cn

Corresponding Author

S. Liu

Available Online 2 March 2023.

DOI: 10.2991/978-94-6463-114-2_3 How to use a DOI?
Keywords: Hot stamping; Steel; Microstructures; Phase transition
Abstract: With the rapid development of the automobile industry and the increasing requirement of the environmental protection, ultra-high strength hot stamping steel is widely used in body parts of the car. In this paper, the precipitation changes of the second phase particles and CCT curves of 2000 MPa ultra-high strength steel under different austenitizing conditions are studied by the thermodynamic calculations and simulations. The effects of austenitizing temperature, holding time and cooling rate on the quenching transformation behaviors of the steel in the hot stamping process are explored. The microstructure differences on the surface and internal positions of the steel in the austenitizing quenching process are compared and analyzed. The austenitizing process parameters suitable for 2000 MPa ultra-high strength hot stamping steel are formulated, which provides a theoretical basis for the formulation of 2000 MPa ultra-high strength steel in the hot stamping process.
Copyright: © 2023 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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Volume Title: Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
Series: Atlantis Highlights in Material Sciences and Technology
Publication Date: 2 March 2023
ISBN: 10.2991/978-94-6463-114-2_3
ISSN: 2590-3217
DOI: 10.2991/978-94-6463-114-2_3 How to use a DOI?
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

ris enw bib

TY  - CONF
AU  - S. Liu
AU  - Y. Feng
AU  - H. Q. Chen
AU  - X. Che
AU  - M. Cao
AU  - F. Yang
PY  - 2023
DA  - 2023/03/02
TI  - Study on Austenitizing Process in Hot Stamping of 2000 MPa Grade Ultra-High Strength Steel
BT  - Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
PB  - Atlantis Press
SP  - 19
EP  - 24
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-114-2_3
DO  - 10.2991/978-94-6463-114-2_3
ID  - Liu2023
ER  -

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