Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy

This paper investigated the effect of a two-step solution heat treatment on the mechanical properties and silicon-rich phase of 332 aluminium alloy. Traditional single-step T6 solution treatment (495 °C/6 h) increased the hardness value of the alloy by 5.96%, increased the tensile strength by 20.42%...

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Main Authors: Mohamed Ariff, Azmah Hanim, Chang, S. Chuan, Chuan, O. Khang
Format: Article
Language:English
Published: Elsevier 2011
Online Access:http://psasir.upm.edu.my/id/eprint/22946/1/Effect%20of%20a%20two-step%20solution%20heat%20treatment%20on%20the%20microstructure%20and%20mechanical%20properties%20of%20332%20aluminium%20silicon%20cast%20alloy.pdf
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author Mohamed Ariff, Azmah Hanim
Chang, S. Chuan
Chuan, O. Khang
author_facet Mohamed Ariff, Azmah Hanim
Chang, S. Chuan
Chuan, O. Khang
author_sort Mohamed Ariff, Azmah Hanim
collection UPM
description This paper investigated the effect of a two-step solution heat treatment on the mechanical properties and silicon-rich phase of 332 aluminium alloy. Traditional single-step T6 solution treatment (495 °C/6 h) increased the hardness value of the alloy by 5.96%, increased the tensile strength by 20.42% and reduced the elongation by 3.97%. Two-step solution treatment of the alloy (495 °C/2 h followed by 515 °C/4 h) increased the hardness value by 6.64%, increased the tensile strength by 16.01%, and reduced the elongation by 4.67% compared to the as-cast samples. Both solution treatments were followed by hot water quenching (75–90 °C) and artificial aging at 250 °C for 4 h. The difference in mechanical properties after heat treatment can be linked to the refinement and the spheroidisation of the silicon-rich phase in the alloy.
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spelling upm.eprints-229462015-12-01T00:55:28Z http://psasir.upm.edu.my/id/eprint/22946/ Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy Mohamed Ariff, Azmah Hanim Chang, S. Chuan Chuan, O. Khang This paper investigated the effect of a two-step solution heat treatment on the mechanical properties and silicon-rich phase of 332 aluminium alloy. Traditional single-step T6 solution treatment (495 °C/6 h) increased the hardness value of the alloy by 5.96%, increased the tensile strength by 20.42% and reduced the elongation by 3.97%. Two-step solution treatment of the alloy (495 °C/2 h followed by 515 °C/4 h) increased the hardness value by 6.64%, increased the tensile strength by 16.01%, and reduced the elongation by 4.67% compared to the as-cast samples. Both solution treatments were followed by hot water quenching (75–90 °C) and artificial aging at 250 °C for 4 h. The difference in mechanical properties after heat treatment can be linked to the refinement and the spheroidisation of the silicon-rich phase in the alloy. Elsevier 2011-04 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/22946/1/Effect%20of%20a%20two-step%20solution%20heat%20treatment%20on%20the%20microstructure%20and%20mechanical%20properties%20of%20332%20aluminium%20silicon%20cast%20alloy.pdf Mohamed Ariff, Azmah Hanim and Chang, S. Chuan and Chuan, O. Khang (2011) Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy. Materials and Design, 32 (4). pp. 2334-2338. ISSN 0264-1275; ESSN: 1873-4197 http://www.sciencedirect.com/science/article/pii/S0261306910007685 10.1016/j.matdes.2010.12.040
spellingShingle Mohamed Ariff, Azmah Hanim
Chang, S. Chuan
Chuan, O. Khang
Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy
title Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy
title_full Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy
title_fullStr Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy
title_full_unstemmed Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy
title_short Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy
title_sort effect of a two step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy
url http://psasir.upm.edu.my/id/eprint/22946/1/Effect%20of%20a%20two-step%20solution%20heat%20treatment%20on%20the%20microstructure%20and%20mechanical%20properties%20of%20332%20aluminium%20silicon%20cast%20alloy.pdf
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