Development of dynamic recrystallization theory

Although hot working had been defined as deformation above the recrystallization temperature (determined after cold working), it was only about 1965 that dynamic recrystallization (DRX) was confirmed to be occurring during the deformation; two decades were required to clarify the similarities to, an...

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Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 387; pp. 203 - 208
Main Author McQueen, H.J.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.12.2004
Subjects
Continuous DRX
Dynamic recrystallization history
Geometric DRX
Nucleation DRX
Continuous DRX
Geometric DRX
Nucleation DRX
Dynamic recrystallization history
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Summary:Although hot working had been defined as deformation above the recrystallization temperature (determined after cold working), it was only about 1965 that dynamic recrystallization (DRX) was confirmed to be occurring during the deformation; two decades were required to clarify the similarities to, and the differences from, static recrystallization. In classical discontinuous DRX in Cu, Ni, and γ-Fe, successive necklaces of new grains cause work softening; however in steady-state, the nuclei are uniformly distributed as reestablished dislocation structure limits growth. In high recovery metals at high strains, the grain boundary (GB) serrations meet across the elongated thinned grains thus pinching them off into almost equiaxed grains containing a substructure, thus geometric DRX.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2004.01.064