Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)

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A Novel High Strength Low Temperature Hot Forming Steel

Authors
D. C. Xu1, *, B. M. Zhang1, X. T. Li1, X. Luo2, H. F. Zhao1, J. Huang3, H. X. Teng1
1Research Institute of Technology, Shougang Group Co., Ltd., Beijing, 100043, China
2Shougang Jingtang United Iron & Steel Co., Ltd., Tangshan, 063200, China
3Beijing Shougang Co., Ltd., Beijing, 100041, China
*Corresponding author. Email: xudechao@shougang.com.cn
Corresponding Author
D. C. Xu
Available Online 2 March 2023.
DOI
10.2991/978-94-6463-114-2_14How to use a DOI?
Keywords
Low temperature hot forming; Medium-Mn; Microstructure; Mechanical characteristics
Abstract

The current trend of hot forming steel is mainly focused on improving the ductility, meanwhile, the new steel was also designed to overcome the surface oxidation and avoid the complexity of cooling system of the stamping dies. This new steel and corresponding forming technology were called low temperature hot forming or warm stamping technology, which overcomes the disadvantages of the conventional hot forming steel. This present work focused on the microstructure characteristics and mechanical behavior of a 0.1C-5Mn-0.02Ti-Fe balance steel warm stamped after different batch annealing temperature. It can be concluded that the microstructure and mechanical characteristics strongly depended on the annealing temperature. These results suggest that when the batch annealing temperature is between 570–630 ℃, the steel exhibits over 1400 MPa tensile strength and 9% total elongation. A distinctly decrease in the tensile strength and total elongation was observed above 690 ℃. These worsen mechanical properties can be attributed to the increased prior austenite grain sizes and fraction of lath martensitic.

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_14
ISSN
2590-3217
DOI
10.2991/978-94-6463-114-2_14How to use a DOI?
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.

Cite this article

risenwbib
TY  - CONF
AU  - D. C. Xu
AU  - B. M. Zhang
AU  - X. T. Li
AU  - X. Luo
AU  - H. F. Zhao
AU  - J. Huang
AU  - H. X. Teng
PY  - 2023
DA  - 2023/03/02
TI  - A Novel High Strength Low Temperature Hot Forming Steel
BT  - Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
PB  - Atlantis Press
SP  - 105
EP  - 110
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-114-2_14
DO  - 10.2991/978-94-6463-114-2_14
ID  - Xu2023
ER  -