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EBSD-based techniques for characterization of microstructural restoration processes during annealing of metals deformed to large plastic strains. / Godfrey, A.; Mishin, Oleg; Yu, Tianbo.

In: Materials Science Forum, Vol. 715-716, 2012, p. 203-210.

Publication: Research - peer-reviewConference article – Annual report year: 2012

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Godfrey, A.; Mishin, Oleg; Yu, Tianbo / EBSD-based techniques for characterization of microstructural restoration processes during annealing of metals deformed to large plastic strains.

In: Materials Science Forum, Vol. 715-716, 2012, p. 203-210.

Publication: Research - peer-reviewConference article – Annual report year: 2012

Bibtex

@article{bce6418ca25b4952b2cca0eb69d89072,
title = "EBSD-based techniques for characterization of microstructural restoration processes during annealing of metals deformed to large plastic strains",
keywords = "Annealing, Coarsening, Crystallization, Grain growth, Microstructure, Plastic deformation, Recrystallization (metallurgy), Restoration, Metal analysis",
publisher = "Trans Tech Publications Ltd.",
author = "A. Godfrey and Oleg Mishin and Tianbo Yu",
year = "2012",
doi = "10.4028/www.scientific.net/MSF.715-716.203",
volume = "715-716",
pages = "203--210",
journal = "Materials Science Forum",
issn = "0255-5476",

}

RIS

TY - CONF

T1 - EBSD-based techniques for characterization of microstructural restoration processes during annealing of metals deformed to large plastic strains

A1 - Godfrey,A.

A1 - Mishin,Oleg

A1 - Yu,Tianbo

AU - Godfrey,A.

AU - Mishin,Oleg

AU - Yu,Tianbo

PB - Trans Tech Publications Ltd.

PY - 2012

Y1 - 2012

N2 - Some methods for quantitative characterization of the microstructures deformed to large plastic strains both before and after annealing are discussed and illustrated using examples of samples after equal channel angular extrusion and cold-rolling. It is emphasized that the microstructures in such deformed samples exhibit a heterogeneity in the microstructural refinement by high angle boundaries. Based on this, a new parameter describing the fraction of regions containing predominantly low angle boundaries is introduced. This parameter has some advantages over the simpler high angle boundary fraction parameter, in particular with regard to data collected from electron-backscatter diffraction investigations, where boundaries with very low misorientation angles cannot be reliably detected. It is shown how this parameter can be related to the recrystallization behavior. Another parameter, based on mode of the distribution of dislocation cell sizes is outlined, and it is demonstrated how this parameter can be used to investigate the uniformity, or otherwise, of the restoration processes occurring during annealing of metals deformed to large plastic strains. © (2012) Trans Tech Publications, Switzerland.

AB - Some methods for quantitative characterization of the microstructures deformed to large plastic strains both before and after annealing are discussed and illustrated using examples of samples after equal channel angular extrusion and cold-rolling. It is emphasized that the microstructures in such deformed samples exhibit a heterogeneity in the microstructural refinement by high angle boundaries. Based on this, a new parameter describing the fraction of regions containing predominantly low angle boundaries is introduced. This parameter has some advantages over the simpler high angle boundary fraction parameter, in particular with regard to data collected from electron-backscatter diffraction investigations, where boundaries with very low misorientation angles cannot be reliably detected. It is shown how this parameter can be related to the recrystallization behavior. Another parameter, based on mode of the distribution of dislocation cell sizes is outlined, and it is demonstrated how this parameter can be used to investigate the uniformity, or otherwise, of the restoration processes occurring during annealing of metals deformed to large plastic strains. © (2012) Trans Tech Publications, Switzerland.

KW - Annealing

KW - Coarsening

KW - Crystallization

KW - Grain growth

KW - Microstructure

KW - Plastic deformation

KW - Recrystallization (metallurgy)

KW - Restoration

KW - Metal analysis

U2 - 10.4028/www.scientific.net/MSF.715-716.203

DO - 10.4028/www.scientific.net/MSF.715-716.203

JO - Materials Science Forum

JF - Materials Science Forum

SN - 0255-5476

VL - 715-716

SP - 203

EP - 210

ER -