A novel technique for developing bimodal grain size distributions in low carbon steels

SCRIPTA MATERIALIA

卷:57

Article

Azizi-Alizamini, H. ; Militzer, M. ; Poole, W. J.

关键词: steel;    dual-phase;    rolling;    annealing;    bimodal grain distribution;   

DOI  :  10.1016/j.scriptamat.2007.08.035

来源: Elsevier

【 摘 要 】

In this study a new method is introduced to produce bimodal grain structures in low carbon steels. This method is based on cold rolling of dual-phase structures and appropriate annealing treatments. The difference in the recrystallization behaviour of ferrite and martensite yields a heterogeneous microstructure with a distribution of coarse and fine grains. These types of microstructures are of interest for optimizing the balance of strength and uniform elongation in ultrafine-grained low carbon steels. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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