Recrystallization in 304 austenitic stainless steel
Data(s) |
01/01/2004
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Resumo |
A 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<br />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<br />peak, where the fraction of dynamic recrystallization was only 50%.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Trans Tech Publications |
Relação |
http://dro.deakin.edu.au/eserv/DU:30002834/barnett-recrstalization-2004.pdf |
Direitos |
2004, Trans Tech Publications |
Palavras-Chave | #dynamic recrystallization #hot Deformation #austenitic stainless steel, #nucleation mechanism |
Tipo |
Journal Article |