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Effect of process variables on structure and properties of aluminium–silicon piston alloy

The majority of automotive pistons are cast in one of the groups of low expansion Al–Si eutectic alloys. The structure and mechanical properties of these alloys are highly ependent upon cooling rate, composition, modification and the heat-treatment operations. The effect of these variables were inve...

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Main Authors: Haque, Mohafizul Md, Maleque, Md. Abdul
Format: Article
Language:English
Published: Elsevier BV 1998
Subjects:
TN600 Metallurgy
TS200 Metal manufactures. Metalworking
Online Access:http://irep.iium.edu.my/29636/1/P6_1998.pdf
http://irep.iium.edu.my/29636/
http://www.sciencedirect.com/science/article/pii/S0924013697004093
http://dx.doi.org/10.1016/S0924-0136(97)00409-3
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spelling my.iium.irep.296362013-07-25T02:51:15Z http://irep.iium.edu.my/29636/ Effect of process variables on structure and properties of aluminium–silicon piston alloy Haque, Mohafizul Md Maleque, Md. Abdul TN600 Metallurgy TS200 Metal manufactures. Metalworking The majority of automotive pistons are cast in one of the groups of low expansion Al–Si eutectic alloys. The structure and mechanical properties of these alloys are highly ependent upon cooling rate, composition, modification and the heat-treatment operations. The effect of these variables were investigated in this study, using locally available automotive ‘scrap pistons’ as basic raw materials. Strontium master alloy was used as the source of the modifier and a natural-gas-fired crucible furnace was used for melting purposes. The microstructures of the alloy, both in the modified and unmodified conditions, were studied in this investigation. Properties such as the ultimate tensile strength (UTS), percentage elongation, hardness and percentage porosity for both rates of cooling have been determined, both with and without the addition of strontium. Significant changes in structures were observed to occur, especially in the primary and eutectic silicon phases. Full heat treatment has also shown a great influence on the structure and properties of the aluminium–silicon piston alloy. The residual stress in the modified alloy is fully relieved due to thermal treatment. Finally, attempts were made to correlate the observed structures and properties obtained during the experiment. Elsevier BV 1998 Article REM application/pdf en http://irep.iium.edu.my/29636/1/P6_1998.pdf Haque, Mohafizul Md and Maleque, Md. Abdul (1998) Effect of process variables on structure and properties of aluminium–silicon piston alloy. Journal of Materials Processing Technology, 77 (1-3). pp. 122-128. ISSN 0924-0136 http://www.sciencedirect.com/science/article/pii/S0924013697004093 http://dx.doi.org/10.1016/S0924-0136(97)00409-3
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic TN600 Metallurgy
TS200 Metal manufactures. Metalworking
spellingShingle TN600 Metallurgy
TS200 Metal manufactures. Metalworking
Haque, Mohafizul Md
Maleque, Md. Abdul
Effect of process variables on structure and properties of aluminium–silicon piston alloy
description The majority of automotive pistons are cast in one of the groups of low expansion Al–Si eutectic alloys. The structure and mechanical properties of these alloys are highly ependent upon cooling rate, composition, modification and the heat-treatment operations. The effect of these variables were investigated in this study, using locally available automotive ‘scrap pistons’ as basic raw materials. Strontium master alloy was used as the source of the modifier and a natural-gas-fired crucible furnace was used for melting purposes. The microstructures of the alloy, both in the modified and unmodified conditions, were studied in this investigation. Properties such as the ultimate tensile strength (UTS), percentage elongation, hardness and percentage porosity for both rates of cooling have been determined, both with and without the addition of strontium. Significant changes in structures were observed to occur, especially in the primary and eutectic silicon phases. Full heat treatment has also shown a great influence on the structure and properties of the aluminium–silicon piston alloy. The residual stress in the modified alloy is fully relieved due to thermal treatment. Finally, attempts were made to correlate the observed structures and properties obtained during the experiment.
format Article
author Haque, Mohafizul Md
Maleque, Md. Abdul
author_facet Haque, Mohafizul Md
Maleque, Md. Abdul
author_sort Haque, Mohafizul Md
title Effect of process variables on structure and properties of aluminium–silicon piston alloy
title_short Effect of process variables on structure and properties of aluminium–silicon piston alloy
title_full Effect of process variables on structure and properties of aluminium–silicon piston alloy
title_fullStr Effect of process variables on structure and properties of aluminium–silicon piston alloy
title_full_unstemmed Effect of process variables on structure and properties of aluminium–silicon piston alloy
title_sort effect of process variables on structure and properties of aluminium–silicon piston alloy
publisher Elsevier BV
publishDate 1998
url http://irep.iium.edu.my/29636/1/P6_1998.pdf
http://irep.iium.edu.my/29636/
http://www.sciencedirect.com/science/article/pii/S0924013697004093
http://dx.doi.org/10.1016/S0924-0136(97)00409-3
_version_ 1643609723974451200
score 13.211869

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