Quenching and partitioning (Q&P) processed medium Mn steel starting from heterogeneous microstructure
SCOPUS
- Title
- Quenching and partitioning (Q&P) processed medium Mn steel starting from heterogeneous microstructure
- Authors
- Kim J.H.; Kwon M.-H.; Gu G.; Lee J.S.; Suh D.-W.
- Date Issued
- 2020-08
- Publisher
- Elsevier BV
- Abstract
- We examine the microstructure and tensile properties of the quenching and partitioning (Q&P) processed medium Mn steels having different starting microstructure. Heterogeneous Mn distribution led by intercritical annealing prior to the Q&P process is more effective in retaining higher fraction of austenite; a major fraction of austenite exists as Mn-rich islands surrounded by martensite. Starting with uneven Mn distribution prior to the Q&P process enhanced the austenite stability by high Mn concentration and shielding effect by neighboring martensite. It contributed to the impressive tensile properties by operating multiple plasticity mechanisms: transformation-induced plasticity (TRIP) with twinning-induced plasticity (TWIP). © 2020
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/106955
- DOI
- 10.1016/j.mtla.2020.100757
- ISSN
- 2589-1529
- Article Type
- Article
- Citation
- Materialia, vol. 12, 2020-08
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- There are no files associated with this item.
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