Microstructure and Mechanical Property of Al6Si2Cu Alloy Subjected to Double-Solution Heat Treatment

This study aims to develop the mechanical properties of the Al6Si2Cu aluminum alloy through the double-solution treatment. In addition to the Al matrix, large amounts of coarse eutectic Si, Al<sub>2</sub>Cu intermetallic, and Fe-rich phases were generated through thermo-calc simulation i...

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Main Authors: Seongbin An, Minsuk Kim, Chaeeul Huh, Chungseok Kim
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/12/1/18
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author Seongbin An
Minsuk Kim
Chaeeul Huh
Chungseok Kim
author_facet Seongbin An
Minsuk Kim
Chaeeul Huh
Chungseok Kim
author_sort Seongbin An
collection DOAJ
description This study aims to develop the mechanical properties of the Al6Si2Cu aluminum alloy through the double-solution treatment. In addition to the Al matrix, large amounts of coarse eutectic Si, Al<sub>2</sub>Cu intermetallic, and Fe-rich phases were generated through thermo-calc simulation in agreement with the equilibrium phases. The eutectic Si phase is fragmented and spheroidized by the solution treatment as the heat treatment temperature and time increase. The Al<sub>2</sub>Cu intermetallic phase is dissolved into the Al matrix, resulting in an increase in both strength and elongation. The second-step solution temperature at 525 °C should be an optimum condition for enhancing the mechanical properties of the Al6Si2Cu aluminum alloy.
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spelling doaj.art-3ea65ea50eda4aaab1b433366a50b23c2023-11-23T14:41:02ZengMDPI AGMetals2075-47012021-12-011211810.3390/met12010018Microstructure and Mechanical Property of Al6Si2Cu Alloy Subjected to Double-Solution Heat TreatmentSeongbin An0Minsuk Kim1Chaeeul Huh2Chungseok Kim3Department of Advanced Materials Science and Engineering, Chosun University, Gwangju 501-759, KoreaDepartment of Advanced Materials Science and Engineering, Chosun University, Gwangju 501-759, KoreaDepartment of Advanced Materials Science and Engineering, Chosun University, Gwangju 501-759, KoreaDepartment of Advanced Materials Science and Engineering, Chosun University, Gwangju 501-759, KoreaThis study aims to develop the mechanical properties of the Al6Si2Cu aluminum alloy through the double-solution treatment. In addition to the Al matrix, large amounts of coarse eutectic Si, Al<sub>2</sub>Cu intermetallic, and Fe-rich phases were generated through thermo-calc simulation in agreement with the equilibrium phases. The eutectic Si phase is fragmented and spheroidized by the solution treatment as the heat treatment temperature and time increase. The Al<sub>2</sub>Cu intermetallic phase is dissolved into the Al matrix, resulting in an increase in both strength and elongation. The second-step solution temperature at 525 °C should be an optimum condition for enhancing the mechanical properties of the Al6Si2Cu aluminum alloy.https://www.mdpi.com/2075-4701/12/1/18aluminum alloyweight lighteningsingle-solution heat treatmentdouble-solution heat treatment
spellingShingle Seongbin An
Minsuk Kim
Chaeeul Huh
Chungseok Kim
Microstructure and Mechanical Property of Al6Si2Cu Alloy Subjected to Double-Solution Heat Treatment
Metals
aluminum alloy
weight lightening
single-solution heat treatment
double-solution heat treatment
title Microstructure and Mechanical Property of Al6Si2Cu Alloy Subjected to Double-Solution Heat Treatment
title_full Microstructure and Mechanical Property of Al6Si2Cu Alloy Subjected to Double-Solution Heat Treatment
title_fullStr Microstructure and Mechanical Property of Al6Si2Cu Alloy Subjected to Double-Solution Heat Treatment
title_full_unstemmed Microstructure and Mechanical Property of Al6Si2Cu Alloy Subjected to Double-Solution Heat Treatment
title_short Microstructure and Mechanical Property of Al6Si2Cu Alloy Subjected to Double-Solution Heat Treatment
title_sort microstructure and mechanical property of al6si2cu alloy subjected to double solution heat treatment
topic aluminum alloy
weight lightening
single-solution heat treatment
double-solution heat treatment
url https://www.mdpi.com/2075-4701/12/1/18
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AT minsukkim microstructureandmechanicalpropertyofal6si2cualloysubjectedtodoublesolutionheattreatment
AT chaeeulhuh microstructureandmechanicalpropertyofal6si2cualloysubjectedtodoublesolutionheattreatment
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