High Strength-Ductility Combination of a Medium-Mn Steel Through Pre-annealing and Fast Heating

DOI

10.2991/978-94-6463-114-2_17How to use a DOI?

Keywords

Medium-Mn steel; Pre-annealing; Cementite dissolution; Austenite transformation; Strength-ductility combination

Abstract

In this study, the effect of pre-annealing treatment on the microstructure and mechanical properties of a cold rolled medium-Mn steel was investigated. The C/Mn distribution in austenite during the following heating was simulated. The results showed that the inhomogeneous Mn distribution is fabricated during the pre-annealing process, which leads to enriched and poor Mn region in austenite in virtue of rapid heating. Consequently, varied transformation, i.e. martensite/retained austenite and bainite transformation occurs during the final cooling process. Accordingly, the combination of strength and ductility was improved significantly with the assistance of bainite and retained austenite.

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.

Download article (PDF)

TY  - CONF
AU  - H. F. Lan
AU  - M. R. Wu
AU  - J. P. Li
AU  - L. X. Du
PY  - 2023
DA  - 2023/03/02
TI  - High Strength-Ductility Combination of a Medium-Mn Steel Through Pre-annealing and Fast Heating
BT  - Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
PB  - Atlantis Press
SP  - 124
EP  - 128
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-114-2_17
DO  - 10.2991/978-94-6463-114-2_17
ID  - Lan2023
ER  -