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

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Microstructure and Properties Evolution of the Medium Manganese Steel During Inter-critical Annealing Heat Treatment and Its Influence by Vanadium Microalloying

Authors
R. Yang1, J. Liu1, *, R. Ge1
1The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, Hubei, China
*Corresponding author. Email: liujing@wust.edu.cn
Corresponding Author
J. Liu
Available Online 2 March 2023.
DOI
10.2991/978-94-6463-114-2_15How to use a DOI?
Keywords
Medium manganese steel; V Microalloying; Quenching temperature
Abstract

The effect of V addition and inter-critical temperature quenching on the microstructure and properties of medium manganese steel were studied. As the quenching temperature of V-free medium manganese steel increased from 850 ℃ to 900 ℃, the tensile strength of the steel increased from 980 MPa to 1220 MPa and the total elongation decreased from 30% to 15%. When the quenching temperature was increased to 950 ℃, the tensile strength did not increase significantly, but the total elongation decreased to about 9.9%, which was due to the presence of coarse ferrite. The tensile strength of medium manganese steel quenched at 950 ℃ could reach 1500 MPa and the total elongation could reach 10.7% by V microalloying. Coarse banded ferrite in V-containing steel was greatly reduced and the morphology and distribution of ferrite between martensite in V-containing steel were optimized, which further improved the tensile strength of the medium-manganese steel without losing plasticity.

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_15
ISSN
2590-3217
DOI
10.2991/978-94-6463-114-2_15How 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  - R. Yang
AU  - J. Liu
AU  - R. Ge
PY  - 2023
DA  - 2023/03/02
TI  - Microstructure and Properties Evolution of the Medium Manganese Steel During Inter-critical Annealing Heat Treatment and Its Influence by Vanadium Microalloying
BT  - Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
PB  - Atlantis Press
SP  - 111
EP  - 117
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-114-2_15
DO  - 10.2991/978-94-6463-114-2_15
ID  - Yang2023
ER  -