期刊
SCRIPTA MATERIALIA
卷 65, 期 3, 页码 225-228出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2011.04.010
关键词
Austenite stability; Mn partitioning; Grain size; Retained austenite; Transformation-induced plasticity (TRIP)
类别
资金
- Ministry of Education, Science and Technology [R32-10147]
- POSCO
- National Research Foundation of Korea [R32-2011-000-10147-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The factors leading to the room temperature stabilization of austenite were investigated for an ultrafine-grained 6 mass% Mn transformation-induced plasticity steel. The size effect of ultrafine austenite grain and the partitioning of Mn to austenite during intercritical annealing were the two main contributions to the austenite stability. Mechanical stabilization of the austenite was not a factor contributing to the austenite stability due to the very low dislocation density of the austenite grains. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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