Flow Stress Behavior and Microstructural Evolution of DC Cast 7065 Aluminum Alloy during Hot Compression Deformation

Kezhun He; Zimeng Tan; Xu Zheng; Xinming Zhang; Biao Chen; Kechao Zhou

doi:10.1088/1742-6596/1885/3/032067

Flow Stress Behavior and Microstructural Evolution of DC Cast 7065 Aluminum Alloy during Hot Compression Deformation

Kezhun He
, Zimeng Tan
, Xu Zheng
, Xinming Zhang
, Biao Chen
, Kechao Zhou

School of Materials Sience and Engineering

Central South University
Guangxi ALNAN Res. Institute for Aviation and Transportation Aluminum Alloy Material and Application
Guangxi ALNAN Aluminium Inc.

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

1 Scopus citations

Abstract

The deformation behavior and microstructure evolution of DC cast 7065 aluminum alloy was investigated in the temperature range of 340-460 and strain rate range of 0.1-8 s-1. The flow stresses of the 7065 alloy are forceful function of deformation strain rate and temperature. The peak stress raises with reducing compression temperature, and at a designated deformation temperature, the peak stress increases with the increasing of strain rate. The hot deformation equation of the alloy is generated, and the deformation activation energy of the alloy is 117.869 kJ/mol. When the samples were deformed above 380, the a-aluminum dendrite in the initial microstructure was replaced by recrystallized grains, dynamic recrystallisation occurred during compression.

Original language	English
Article number	032067
Journal	Journal of Physics: Conference Series
Volume	1885
Issue number	3
DOIs	https://doi.org/10.1088/1742-6596/1885/3/032067
State	Published - 28 Apr 2021
Event	2021 7th International Conference on Manufacturing Technology and Applied Materials, ICAMMT 2021 - Sanya, China Duration: 26 Mar 2021 → 28 Mar 2021

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title = "Flow Stress Behavior and Microstructural Evolution of DC Cast 7065 Aluminum Alloy during Hot Compression Deformation",

abstract = "The deformation behavior and microstructure evolution of DC cast 7065 aluminum alloy was investigated in the temperature range of 340-460 and strain rate range of 0.1-8 s-1. The flow stresses of the 7065 alloy are forceful function of deformation strain rate and temperature. The peak stress raises with reducing compression temperature, and at a designated deformation temperature, the peak stress increases with the increasing of strain rate. The hot deformation equation of the alloy is generated, and the deformation activation energy of the alloy is 117.869 kJ/mol. When the samples were deformed above 380, the a-aluminum dendrite in the initial microstructure was replaced by recrystallized grains, dynamic recrystallisation occurred during compression.",

author = "Kezhun He and Zimeng Tan and Xu Zheng and Xinming Zhang and Biao Chen and Kechao Zhou",

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T1 - Flow Stress Behavior and Microstructural Evolution of DC Cast 7065 Aluminum Alloy during Hot Compression Deformation

AU - He, Kezhun

AU - Tan, Zimeng

AU - Zheng, Xu

AU - Zhang, Xinming

AU - Chen, Biao

AU - Zhou, Kechao

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2021/4/28

Y1 - 2021/4/28

N2 - The deformation behavior and microstructure evolution of DC cast 7065 aluminum alloy was investigated in the temperature range of 340-460 and strain rate range of 0.1-8 s-1. The flow stresses of the 7065 alloy are forceful function of deformation strain rate and temperature. The peak stress raises with reducing compression temperature, and at a designated deformation temperature, the peak stress increases with the increasing of strain rate. The hot deformation equation of the alloy is generated, and the deformation activation energy of the alloy is 117.869 kJ/mol. When the samples were deformed above 380, the a-aluminum dendrite in the initial microstructure was replaced by recrystallized grains, dynamic recrystallisation occurred during compression.

AB - The deformation behavior and microstructure evolution of DC cast 7065 aluminum alloy was investigated in the temperature range of 340-460 and strain rate range of 0.1-8 s-1. The flow stresses of the 7065 alloy are forceful function of deformation strain rate and temperature. The peak stress raises with reducing compression temperature, and at a designated deformation temperature, the peak stress increases with the increasing of strain rate. The hot deformation equation of the alloy is generated, and the deformation activation energy of the alloy is 117.869 kJ/mol. When the samples were deformed above 380, the a-aluminum dendrite in the initial microstructure was replaced by recrystallized grains, dynamic recrystallisation occurred during compression.

UR - https://www.scopus.com/pages/publications/85105924811

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DO - 10.1088/1742-6596/1885/3/032067

M3 - 会议文章

AN - SCOPUS:85105924811

SN - 1742-6588

VL - 1885

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 3

M1 - 032067

T2 - 2021 7th International Conference on Manufacturing Technology and Applied Materials, ICAMMT 2021

Y2 - 26 March 2021 through 28 March 2021

ER -

Flow Stress Behavior and Microstructural Evolution of DC Cast 7065 Aluminum Alloy during Hot Compression Deformation

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