Effect of Solution Treatment Process on Hardness of Alumina Reinforced Al-9Zn Composite Produced by Squeeze Casting

Characteristics of aluminium matrix composites reinforced by alumina have been developed to improve mechanical properties. One of the determining factors in the development of this material is parameter of solution treatment process. This study discusses the performance of the composite matrix of Al...

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Main Author: Dwi Rahmalina
Format: Article
Language:English
Published: Hasanuddin University 2016-05-01
Series:International Journal on Smart Material and Mechatronics
Subjects:
Online Access:http://eng.unhas.ac.id/ijsmm/index.php/ijsmm/article/view/9
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author Dwi Rahmalina
author_facet Dwi Rahmalina
author_sort Dwi Rahmalina
collection DOAJ
description Characteristics of aluminium matrix composites reinforced by alumina have been developed to improve mechanical properties. One of the determining factors in the development of this material is parameter of solution treatment process. This study discusses the performance of the composite matrix of Al-9Zn-6Mg-3Si reinforced by alumina powder of 5 % volume fraction. Composite are manufactured by squeeze casting process with the pressure of 20 Ton in the metal mould. To improve mechanical properties, the precipitation hardening process is conducted through variation of temperature of solution treatment of 450, 475 and 500 °C and holding time of solution treatment of 30, 60 and 90 minutes. Materials are characterized by hardness testing and microstructure observation. The results showed that the optimum condition of hardness was produced by solution treatment temperature of 500 °C and 90 minutes holding time of 86 HRB
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spelling doaj.art-fe1a7b5ccffb46b0bf3cf76ac12e39082022-12-21T19:57:35ZengHasanuddin UniversityInternational Journal on Smart Material and Mechatronics2356-53142460-075X2016-05-011124279Effect of Solution Treatment Process on Hardness of Alumina Reinforced Al-9Zn Composite Produced by Squeeze CastingDwi Rahmalina0Mechanical Engineering Department Faculty of Engineering, Pancasila University, JakartaCharacteristics of aluminium matrix composites reinforced by alumina have been developed to improve mechanical properties. One of the determining factors in the development of this material is parameter of solution treatment process. This study discusses the performance of the composite matrix of Al-9Zn-6Mg-3Si reinforced by alumina powder of 5 % volume fraction. Composite are manufactured by squeeze casting process with the pressure of 20 Ton in the metal mould. To improve mechanical properties, the precipitation hardening process is conducted through variation of temperature of solution treatment of 450, 475 and 500 °C and holding time of solution treatment of 30, 60 and 90 minutes. Materials are characterized by hardness testing and microstructure observation. The results showed that the optimum condition of hardness was produced by solution treatment temperature of 500 °C and 90 minutes holding time of 86 HRBhttp://eng.unhas.ac.id/ijsmm/index.php/ijsmm/article/view/9aluminium matrix composite, alumina, squeeze casting, hardness
spellingShingle Dwi Rahmalina
Effect of Solution Treatment Process on Hardness of Alumina Reinforced Al-9Zn Composite Produced by Squeeze Casting
International Journal on Smart Material and Mechatronics
aluminium matrix composite, alumina, squeeze casting, hardness
title Effect of Solution Treatment Process on Hardness of Alumina Reinforced Al-9Zn Composite Produced by Squeeze Casting
title_full Effect of Solution Treatment Process on Hardness of Alumina Reinforced Al-9Zn Composite Produced by Squeeze Casting
title_fullStr Effect of Solution Treatment Process on Hardness of Alumina Reinforced Al-9Zn Composite Produced by Squeeze Casting
title_full_unstemmed Effect of Solution Treatment Process on Hardness of Alumina Reinforced Al-9Zn Composite Produced by Squeeze Casting
title_short Effect of Solution Treatment Process on Hardness of Alumina Reinforced Al-9Zn Composite Produced by Squeeze Casting
title_sort effect of solution treatment process on hardness of alumina reinforced al 9zn composite produced by squeeze casting
topic aluminium matrix composite, alumina, squeeze casting, hardness
url http://eng.unhas.ac.id/ijsmm/index.php/ijsmm/article/view/9
work_keys_str_mv AT dwirahmalina effectofsolutiontreatmentprocessonhardnessofaluminareinforcedal9zncompositeproducedbysqueezecasting