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Recrystallization in 304 austenitic stainless steel
journal contribution
posted on 2004-01-01, 00:00 authored by A Dehghan-Manshadi, Hossein BeladiHossein Beladi, Matthew BarnettMatthew Barnett, Peter HodgsonPeter HodgsonA 304 austenitic stainless steel was deformed using hot torsion to study the evolution of dynamic recrystallization (DRX). The initial nucleation of dynamically recrystallization occurred by the bulging of pre-existing high angle grain boundaries at a strain much lower than the peak strain. At the
peak stress, only a low fraction of the prior grain boundaries were covered with new DRX grains. Beyond the peak stress, new DRX grains formed layers near the initial DRX and a necklace structure was developed. Several different mechanisms appeared to be operative in the formation of new high angle boundaries and grains. The recrystallization behaviour after deformation showed a classic transition from strain dependent to strain independent softening. This occurred at a strain beyond the
peak, where the fraction of dynamic recrystallization was only 50%.
peak stress, only a low fraction of the prior grain boundaries were covered with new DRX grains. Beyond the peak stress, new DRX grains formed layers near the initial DRX and a necklace structure was developed. Several different mechanisms appeared to be operative in the formation of new high angle boundaries and grains. The recrystallization behaviour after deformation showed a classic transition from strain dependent to strain independent softening. This occurred at a strain beyond the
peak, where the fraction of dynamic recrystallization was only 50%.
History
Journal
Materials science forumVolume
467Issue
470Pagination
1163 - 1168Publisher
Trans Tech PublicationsLocation
Aedermannsdorf, SwitzerlandISSN
0255-5476Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2004, Trans Tech PublicationsUsage metrics
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