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

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Influence of Annealing Temperatures on Microstructure and Mechanical Properties of 22MnB5 Hot Stamping Steel

Authors
B. Yang1, H. L. Liu1, *, T. Jing1, Y. Chen1
1R&D Institute of Benxi Steel Plates Co., Ltd., Benxi, 117000, Liaoning, China
*Corresponding author. Email: daliang_lhl@hotmail.com
Corresponding Author
H. L. Liu
Available Online 2 March 2023.
DOI
10.2991/978-94-6463-114-2_6How to use a DOI?
Keywords
Annealing temperature; Microstructure; Mechanical property; 22MnB5
Abstract

In this paper, the relationship between microstructure and mechanical properties of 22MnB5 hot stamping steel at different annealing temperatures was studied by optical microscope, scanning electron microscope and universal tensile test machine. The results showed that the tensile strength and yield strength decreased with the increasing of annealing temperature. When the pearlite was not spheroidized, the strength decline was due to the growth of grains caused by the diffusion of metal atoms during heating. When the pearlite was spheroidized, the solid solution atoms in the ferritic matrix of spheroidized pearlite were diffused and precipitated at grain boundaries. The solid solution atoms in the ferritic matrix were reduced and the effect of solid solution strengthening was reduced, which leads to the decreasing of the overall strength of the material.

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
978-94-6463-114-2
ISSN
2590-3217
DOI
10.2991/978-94-6463-114-2_6How 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  - B. Yang
AU  - H. L. Liu
AU  - T. Jing
AU  - Y. Chen
PY  - 2023
DA  - 2023/03/02
TI  - Influence of Annealing Temperatures on Microstructure and Mechanical Properties of 22MnB5 Hot Stamping Steel
BT  - Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
PB  - Atlantis Press
SP  - 42
EP  - 47
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-114-2_6
DO  - 10.2991/978-94-6463-114-2_6
ID  - Yang2023
ER  -