Recrystallization behaviour of the nickel-based alloy 80 a during hot forming

S. Mitsche; P. Poelt; C. Sommitsch

doi:10.1111/j.1365-2818.2007.01810.x

Recrystallization behaviour of the nickel-based alloy 80 a during hot forming

S. Mitsche^*, P. Poelt, C. Sommitsch

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The dynamic recrystallization as well as meta-dynamic and static recrystallization of the nickel-based alloy 80A was investigated by means of electron backscatter diffraction (EBSD). Specimens were hot compressed at a temperature of 1120°C and a strain rate of 0.1/s at varying strain and soak times to describe the recrystallization behaviour. Various approaches were tested in order to differentiate between recrystallized and deformed grains based on EBSD data. The grain orientation spread was clearly found to be the most reliable procedure. A high twinning of the recrystallized grains was observed, and as a consequence the measured grain size was strongly dependent on whether the coherent and incoherent twin boundaries were regarded as genuine boundaries or removed.

Original language	English
Pages (from-to)	267-274
Number of pages	8
Journal	Journal of Microscopy
Volume	227
Issue number	3
DOIs	https://doi.org/10.1111/j.1365-2818.2007.01810.x
Publication status	Published - 1 Sept 2007

Keywords

Electron backscatter diffraction
Nickel-based alloy
Recrystallization
Scanning electron microscope

ASJC Scopus subject areas

Pathology and Forensic Medicine
Histology

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10.1111/j.1365-2818.2007.01810.x

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title = "Recrystallization behaviour of the nickel-based alloy 80 a during hot forming",

abstract = "The dynamic recrystallization as well as meta-dynamic and static recrystallization of the nickel-based alloy 80A was investigated by means of electron backscatter diffraction (EBSD). Specimens were hot compressed at a temperature of 1120°C and a strain rate of 0.1/s at varying strain and soak times to describe the recrystallization behaviour. Various approaches were tested in order to differentiate between recrystallized and deformed grains based on EBSD data. The grain orientation spread was clearly found to be the most reliable procedure. A high twinning of the recrystallized grains was observed, and as a consequence the measured grain size was strongly dependent on whether the coherent and incoherent twin boundaries were regarded as genuine boundaries or removed.",

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T1 - Recrystallization behaviour of the nickel-based alloy 80 a during hot forming

AU - Mitsche, S.

AU - Poelt, P.

AU - Sommitsch, C.

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Y1 - 2007/9/1

N2 - The dynamic recrystallization as well as meta-dynamic and static recrystallization of the nickel-based alloy 80A was investigated by means of electron backscatter diffraction (EBSD). Specimens were hot compressed at a temperature of 1120°C and a strain rate of 0.1/s at varying strain and soak times to describe the recrystallization behaviour. Various approaches were tested in order to differentiate between recrystallized and deformed grains based on EBSD data. The grain orientation spread was clearly found to be the most reliable procedure. A high twinning of the recrystallized grains was observed, and as a consequence the measured grain size was strongly dependent on whether the coherent and incoherent twin boundaries were regarded as genuine boundaries or removed.

AB - The dynamic recrystallization as well as meta-dynamic and static recrystallization of the nickel-based alloy 80A was investigated by means of electron backscatter diffraction (EBSD). Specimens were hot compressed at a temperature of 1120°C and a strain rate of 0.1/s at varying strain and soak times to describe the recrystallization behaviour. Various approaches were tested in order to differentiate between recrystallized and deformed grains based on EBSD data. The grain orientation spread was clearly found to be the most reliable procedure. A high twinning of the recrystallized grains was observed, and as a consequence the measured grain size was strongly dependent on whether the coherent and incoherent twin boundaries were regarded as genuine boundaries or removed.

KW - Electron backscatter diffraction

KW - Nickel-based alloy

KW - Recrystallization

KW - Scanning electron microscope

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DO - 10.1111/j.1365-2818.2007.01810.x

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JO - Journal of Microscopy

JF - Journal of Microscopy

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ER -

Recrystallization behaviour of the nickel-based alloy 80 a during hot forming

Abstract

Keywords

ASJC Scopus subject areas

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