Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP)

AZ31B magnesium alloy with initial grain size of 11.2 µm was grain refined using Equal Channel Angular Pressing (ECAP) the alloy was ECAP-processed up to 5-times at 473 K. As a result, the grains are refined to 2.1 µm after three ECAP passes, the elongation was increased to 84 % at 473 K and strain...

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Main Authors: Ziad Tariq Madhloom, Azal R. Ismail
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2014-08-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_99933_17bd57736d9c9525ccf02bd4347cd615.pdf
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author Ziad Tariq Madhloom
Azal R. Ismail
author_facet Ziad Tariq Madhloom
Azal R. Ismail
author_sort Ziad Tariq Madhloom
collection DOAJ
description AZ31B magnesium alloy with initial grain size of 11.2 µm was grain refined using Equal Channel Angular Pressing (ECAP) the alloy was ECAP-processed up to 5-times at 473 K. As a result, the grains are refined to 2.1 µm after three ECAP passes, the elongation was increased to 84 % at 473 K and strain rate of 1×10-4 s-1 after ECAP up to 5-passes,. Large fracture elongations of 261% are obtained at 623 K and strain rate 2.45×10-4 s-1 for specimen made from 3 ECAR passes compared to 183% for the as received material. Also the superplastic properties of the ECAP-processed specimens were investigated at 623 K and the strain rate ranges from 2.45×10-4 s-1 to 1.2×10-3 s-1. The strain rate sensitivity were determined to be 0.33
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spelling doaj.art-391790496a944cfb816b8dd11811ba192024-02-04T17:31:17ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582014-08-013281958197010.30684/etj.32.8A699933Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP)Ziad Tariq MadhloomAzal R. IsmailAZ31B magnesium alloy with initial grain size of 11.2 µm was grain refined using Equal Channel Angular Pressing (ECAP) the alloy was ECAP-processed up to 5-times at 473 K. As a result, the grains are refined to 2.1 µm after three ECAP passes, the elongation was increased to 84 % at 473 K and strain rate of 1×10-4 s-1 after ECAP up to 5-passes,. Large fracture elongations of 261% are obtained at 623 K and strain rate 2.45×10-4 s-1 for specimen made from 3 ECAR passes compared to 183% for the as received material. Also the superplastic properties of the ECAP-processed specimens were investigated at 623 K and the strain rate ranges from 2.45×10-4 s-1 to 1.2×10-3 s-1. The strain rate sensitivity were determined to be 0.33https://etj.uotechnology.edu.iq/article_99933_17bd57736d9c9525ccf02bd4347cd615.pdfsuperplasticitymagnesium alloysevere plastic deformation
spellingShingle Ziad Tariq Madhloom
Azal R. Ismail
Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP)
Engineering and Technology Journal
superplasticity
magnesium alloy
severe plastic deformation
title Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP)
title_full Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP)
title_fullStr Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP)
title_full_unstemmed Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP)
title_short Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP)
title_sort superplastic behavior of az31b magnesium alloy processed by equal channel angular pressing ecap
topic superplasticity
magnesium alloy
severe plastic deformation
url https://etj.uotechnology.edu.iq/article_99933_17bd57736d9c9525ccf02bd4347cd615.pdf
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