Tensile Deformation Behaviors of Ultrafine Grained Al-Fe-Si Alloy Sheets

Hyoung Wook Kim; Suk Bong Kang; Nobuhiro Tsuji; Yoritoshi Minamino

doi:10.4028/www.scientific.net/MSF.512.85

Paper Titles

Evaluation Method for Fracture Mechanics-Based Material Toughness from Charpy Impact Test
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Microstructural Evolution in 36%Ni Austenitic Steel during the ARB Process
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Fine-Grained Structure Formation in 7475 Al Alloy during Hot Multidirectional Forging
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Tensile Deformation Behaviors of Ultrafine Grained Al-Fe-Si Alloy Sheets
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EBSD and TEM Characterization of Ultrafine Grained High Purity Aluminum Produced by Accumulative Roll-Bonding
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Acetate and Chloride Effects on Hydrogen Production across Crevices
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Process of the One-Dimensional Motion of Small Interstitial-Type Dislocation Loops in Iron
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Effect of Electron Irradiation on Nanocrystallization of Fe-Nd-B Amorphous Alloys
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HomeMaterials Science ForumMaterials Science Forum Vol. 512Tensile Deformation Behaviors of Ultrafine Grained...

Tensile Deformation Behaviors of Ultrafine Grained Al-Fe-Si Alloy Sheets

Abstract:

Ultra-fine grained AA8011 alloy sheets manufactured by the accumulative roll-bonding (ARB) process exhibited unique tensile deformation behavior. Tensile strength of the ARB processed AA8011 sheets increased up to three cycles, but then showed nearly the same value after three cycles. Meanwhile, the total elongation grew significantly with an increasing nember of ARB cycles. It was found that the strain-rate sensitivities (m) of the AA8011 sheets increased up to 0.047 by the ARB process. A large number of high-angle boundaries were introduced by the ARB process and the fraction of high-angle boundaries reached 70% after eight ARB cycles. In this paper, we discusse the increase in total elongation on the basis of strain-rate sensitive deformation of the material, which is also correlated with dynamic recovery.

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Periodical:

Materials Science Forum (Volume 512)

Pages:

85-90

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.512.85

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Online since:

April 2006

Authors:

Hyoung Wook Kim, Suk Bong Kang, Nobuhiro Tsuji, Yoritoshi Minamino

Keywords:

Accumulative Roll Bonding (ARB), Al-Fe-Si, Elongation, Strain Rate Sensitivity (SRS), Strain-Hardening, Tensile Deformation, Ultrafine Grained

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