Martensite transformation of sub-micron retained austenite in ultra-fine grained manganese transformation-induced plasticity steel
SCIE
SCOPUS
- Title
- Martensite transformation of sub-micron retained austenite in ultra-fine grained manganese transformation-induced plasticity steel
- Authors
- Seok-Jae Lee; Seawoong Lee; De Cooman, BC
- Date Issued
- 2013-05
- Publisher
- HANSER
- Abstract
- The influence of the chemical composition and the grain size of retained austenite in an ultra-fine grained medium manganese steel on the martensite transformation kinetics was investigated by means of dilatometry. A modified Koistinen-Marburger type exponential function was developed for the martensite transformation kinetics, which includes the influence of the size and the composition of the austenite. Whereas the ultra-fine grained retained austenite had a remarkably low M-s temperature, the kinetics of its transformation to martensite was accelerated.
- Keywords
- Martensite transformation kinetics; Alloy partitioning; Grain refinement; Ultra-fine grain; Transformation-induced plasticity steel; LOW-ALLOY STEEL; START TEMPERATURE; TRIP STEELS; VOLUME FRACTION; PLAIN CARBON; PURE IRON; SIZE; KINETICS; MODEL; STABILITY
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15436
- DOI
- 10.3139/146.110882
- ISSN
- 1862-5282
- Article Type
- Article
- Citation
- INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, vol. 104, no. 5, page. 423 - 429, 2013-05
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