Microstructure, texture, electrical and mechanical properties of aa-6063 processed by multi directional forging.
File(s)
Published version
Author(s)
Djavanroodi, Faramarz
Type
Journal Article
Abstract
In current research, the effect of the multi-directional forging (MDF) process on the microstructure, texture, mechanical and electrical properties of AA-6063 under different heat treatment conditions at various MDF temperatures was studied. The annealed AA-6063 alloy was processed up to three passes of MDF at ambient temperature. Three passes of this process were also applied to the solution-treated AA-6063 at ambient temperature and 177 °C. Microstructural investigations demonstrated that the MDF process led to a significant reduction in the average grain size as well as a considerable increase in the fraction of low angle grain boundaries. Texture analysis revealed that copper and Goss textures were mainly developed within the annealed and solution-treated samples of AA-6063, respectively. The hardness and shear strength values of all processed samples also showed a sizeable improvement compared to the initial heat-treated samples. For example, the hardness and shear yield strength value of the solution-treated sample MDFed for three passes showed more than 100 and 70% increase, respectively. The effect of the MDF process on the electrical conductivity of AA-6063 under different heat treatment conditions at various temperatures was negligible. So, it can be concluded that the MDF process increased the mechanical properties without an appreciable decrease in electrical conductivity.
Date Issued
2018-11-29
Date Acceptance
2018-11-27
Citation
Materials, 2018, 11 (12), pp.1-17
ISSN
1996-1944
Publisher
MDPI
Start Page
1
End Page
17
Journal / Book Title
Materials
Volume
11
Issue
12
Copyright Statement
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Identifier
https://www.mdpi.com/1996-1944/11/12/2419
Subjects
Science & Technology
Technology
Materials Science, Multidisciplinary
Materials Science
MDF process
AA-6063 aluminum alloy
microstructure
texture
mechanical properties
electrical properties
SEVERE PLASTIC-DEFORMATION
ULTRAFINE-GRAINED MATERIALS
EQUAL-CHANNEL
AGING TREATMENT
ALUMINUM-ALLOY
AL-ALLOY
SUPERIOR STRENGTH
SHEAR PUNCH
MG ALLOY
BEHAVIOR
AA-6063 aluminum alloy
MDF process
electrical properties
mechanical properties
microstructure
texture
03 Chemical Sciences
09 Engineering
Publication Status
Published
Date Publish Online
2018-11-29