Dynamic Recrystallization of Ferrite in a Low Carbon Nb-Microalloyed Steel

Abstract:

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The hot deformation behavior of a low carbon Nb-microalloyed steel is investigated by hot compression test in the ferrite phase region compared with a low carbon steel with similar compositions, and the effect of Nb on dynamic recrystallization of ferrite is analyzed. Results indicate that during hot deformation in the ferrite phase region, the effect of Nb solely depends on the size of NbC precipitates. Tiny particles which average size is about 7.5nm have a retarding effect on dynamic recrystallization process of ferrite, on the contrary, coarser particles which average size is about 30.6nm have a promoting effect and are of benefit to the refinement of recrystallized grains.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

149-152

DOI:

10.4028/www.scientific.net/MSF.475-479.149

Citation:

L. F. Li et al., "Dynamic Recrystallization of Ferrite in a Low Carbon Nb-Microalloyed Steel", Materials Science Forum, Vols. 475-479, pp. 149-152, 2005

Online since:

January 2005

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Price:

$35.00

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