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Ultra-refinement of grain in low C steels through straininduceddynamic transformation and its application to hot stripmill

Published online by Cambridge University Press:  27 April 2006

Jae Sang Lee ,
Jong-Kyo Choi  and
Ki-Bong Kang
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Abstract

The features of dynamic transformation for grain refinement of lowcarbon steels are presented and representative results of trial hotstrip productions are reported. Laboratory experiments have establishedthat dynamic transformation occurs in under-cooled austeniteunder suitable deformation conditions. Trial production resultsshowed that utilizing the dynamic transformation concept, grain refinementof ferrite is feasible in commercial hot strip mills: a ferritegrain size of 2~3 μm can be obtained, along with various controlledsecond phases.

Type
Research Article
Information
Metallurgical Research & Technology , Volume 103 , Issue 4: Haut-fourneauFour électriqueCoulée continueUltra steelsBâtiment , April 2006 , pp. 188 - 192
Copyright
© La Revue de Métallurgie, 2006

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