Stored energy calculation in AA 1050 based on deformation microstructure from electron backscatter diffraction data

Yingrui Yan; Hongjiang Pan; Andy Godfrey; Dorte Juul Jensen; Xiaodan Zhang

doi:10.1088/1757-899X/1249/1/012064

Stored energy calculation in AA 1050 based on deformation microstructure from electron backscatter diffraction data

Yingrui Yan
, Hongjiang Pan^*
, Andy Godfrey
, Dorte Juul Jensen
, Xiaodan Zhang^*

^*Corresponding author for this work

Kunming University of Science and Technology
Tsinghua University

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

An AA1050 aluminum plate was cold rolled to a true strain of 1.9, and the stored energy was calculated based on microstructural parameters, namely the dislocation boundary spacing and the misorientation distribution, determined from large area electron back-scatter diffraction maps with an indexed fraction higher than 90% before any data cleaning operations. Three methods were used to determine the dislocation boundary spacing and the misorientation distribution. The results show significant differences in the dislocation boundary spacings and the misorientation distributions obtained by the different methods, especially for boundaries with misorientation angles below 2°. These deviations lead to significant differences in the calculated stored energy. A discussion of the three approaches to determine stored energies is presented.

Original language	English
Article number	012064
Journal	IOP Conference Series: Materials Science and Engineering
Volume	1249
Issue number	1
Number of pages	7
ISSN	1757-8981
DOIs	https://doi.org/10.1088/1757-899X/1249/1/012064
Publication status	Published - 2022
Event	42nd Risø International Symposium on Materials Science - Risø, Denmark Duration: 5 Sept 2022 → 9 Sept 2022 https://www.conferencemanager.dk/42ndsymposium/program

Conference

Conference	42nd Risø International Symposium on Materials Science
Country/Territory	Denmark
City	Risø
Period	05/09/2022 → 09/09/2022
Internet address	https://www.conferencemanager.dk/42ndsymposium/program

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title = "Stored energy calculation in AA 1050 based on deformation microstructure from electron backscatter diffraction data",

abstract = "An AA1050 aluminum plate was cold rolled to a true strain of 1.9, and the stored energy was calculated based on microstructural parameters, namely the dislocation boundary spacing and the misorientation distribution, determined from large area electron back-scatter diffraction maps with an indexed fraction higher than 90\% before any data cleaning operations. Three methods were used to determine the dislocation boundary spacing and the misorientation distribution. The results show significant differences in the dislocation boundary spacings and the misorientation distributions obtained by the different methods, especially for boundaries with misorientation angles below 2°. These deviations lead to significant differences in the calculated stored energy. A discussion of the three approaches to determine stored energies is presented.",

author = "Yingrui Yan and Hongjiang Pan and Andy Godfrey and Jensen, \{Dorte Juul\} and Xiaodan Zhang",

year = "2022",

doi = "10.1088/1757-899X/1249/1/012064",

language = "English",

volume = "1249",

journal = "IOP Conference Series: Materials Science and Engineering",

issn = "1757-8981",

publisher = "IOP Publishing",

number = "1",

note = "42nd Ris{\o} International Symposium on Materials Science ; Conference date: 05-09-2022 Through 09-09-2022",

url = "https://www.conferencemanager.dk/42ndsymposium/program",

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TY - JOUR

T1 - Stored energy calculation in AA 1050 based on deformation microstructure from electron backscatter diffraction data

AU - Yan, Yingrui

AU - Pan, Hongjiang

AU - Godfrey, Andy

AU - Jensen, Dorte Juul

AU - Zhang, Xiaodan

PY - 2022

Y1 - 2022

N2 - An AA1050 aluminum plate was cold rolled to a true strain of 1.9, and the stored energy was calculated based on microstructural parameters, namely the dislocation boundary spacing and the misorientation distribution, determined from large area electron back-scatter diffraction maps with an indexed fraction higher than 90% before any data cleaning operations. Three methods were used to determine the dislocation boundary spacing and the misorientation distribution. The results show significant differences in the dislocation boundary spacings and the misorientation distributions obtained by the different methods, especially for boundaries with misorientation angles below 2°. These deviations lead to significant differences in the calculated stored energy. A discussion of the three approaches to determine stored energies is presented.

AB - An AA1050 aluminum plate was cold rolled to a true strain of 1.9, and the stored energy was calculated based on microstructural parameters, namely the dislocation boundary spacing and the misorientation distribution, determined from large area electron back-scatter diffraction maps with an indexed fraction higher than 90% before any data cleaning operations. Three methods were used to determine the dislocation boundary spacing and the misorientation distribution. The results show significant differences in the dislocation boundary spacings and the misorientation distributions obtained by the different methods, especially for boundaries with misorientation angles below 2°. These deviations lead to significant differences in the calculated stored energy. A discussion of the three approaches to determine stored energies is presented.

U2 - 10.1088/1757-899X/1249/1/012064

DO - 10.1088/1757-899X/1249/1/012064

M3 - Journal article

SN - 1757-8981

VL - 1249

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

IS - 1

M1 - 012064

T2 - 42nd Risø International Symposium on Materials Science

Y2 - 5 September 2022 through 9 September 2022

ER -

Stored energy calculation in AA 1050 based on deformation microstructure from electron backscatter diffraction data

Abstract

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