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22130

Microstructural Evolution and Thermal Stability of Pure Copper Processed by Severe Plastic Deformation

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Last updated: 04 Jan 2025

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Abstract

Annealed pure copper samples of 99.97 wt. % processed at room temperature by Equal Channel Angular Pressing (ECAP) technique with route Bc up to 8 passes followed by cold rolling up to 75% reduction in thickness. The sample was followed by isothermal annealing at different temperatures. The recrystallized microstructure was detected by using EBSD technique. Isochronal and isothermal annealing was performed to investigate the material's behavior by measuring the change of Vickers microhardness. With increasing annealing temperature, the microstructure becomes more homogeneous while the microhardness decreases dramatically. A modified standard JMAK- microhardness Model used to analyze the Kinetics of recrystallization of the annealed deformed samples, in this approach the JMAK model expressed in terms of microhardness measurements. JMAK exponent, n, the temperature dependent constant, k, and the activation energy, Q, for recrystallization are obtained.

DOI

10.21608/asat.2018.22130

Keywords

UFG, ECAP, EBSD, Cold rolling, recrystallization

Authors

First Name

M.

Last Name

Elmasry

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Affiliation

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China.

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First Name

Yao

Last Name

Jiang

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-

Affiliation

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China.

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First Name

Fan

Last Name

Liu

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-

Affiliation

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China.

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City

-

Orcid

-

First Name

Jing

Last Name

Wang

MiddleName

Tao

Affiliation

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China.

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Volume

15

Article Issue

AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 15 – May 28 - 30, 2013

Related Issue

4183

Issue Date

2013-05-01

Receive Date

2018-12-17

Publish Date

2018-12-17

Page Start

1

Page End

10

Print ISSN

2090-0678

Online ISSN

2636-364X

Link

https://asat.journals.ekb.eg/article_22130.html

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https://asat.journals.ekb.eg/service?article_code=22130

Order

57

Type

Original Article

Type Code

737

Publication Type

Journal

Publication Title

International Conference on Aerospace Sciences and Aviation Technology

Publication Link

https://asat.journals.ekb.eg/

MainTitle

Microstructural Evolution and Thermal Stability of Pure Copper Processed by Severe Plastic Deformation

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Article

Created At

22 Jan 2023