Recovering the ductility of medium-Mn steel by restoring the original microstructure after forming
- Title
- Recovering the ductility of medium-Mn steel by restoring the original microstructure after forming
- Author
- 정문식
- Alternative Author(s)
- 정문식
- Advisor(s)
- 한정호
- Issue Date
- 2021. 2
- Publisher
- 한양대학교
- Degree
- Master
- Abstract
- To recover the reduced ductility of cold-working medium-Mn steels, a novel resetting process is suggested in this study. Through a simple heat treatment, the original microstructure of the steel is restored by the re-reversion of the Mn-enriched strain-induced martensite. The ductility of the reset is successfully recovered, and its strength is improved, relative to the steel prior to cold rolling. The present technique facilitates the use of a single steel sheet and a simple heat treatment process for an automotive component which originally comprised two different parts to compensate for the opposing attributes that it requires (e.g., having a high strength at the upper and high toughness at the bottom part of a center pillar).
- URI
- https://repository.hanyang.ac.kr/handle/20.500.11754/159635http://hanyang.dcollection.net/common/orgView/200000485691
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > MATERIALS SCIENCE & ENGINEERING(신소재공학과) > Theses (Master)
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