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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier BV
1998
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| Online Access: | http://irep.iium.edu.my/29636/ http://irep.iium.edu.my/29636/1/P6_1998.pdf |
| _version_ | 1848780160516489216 |
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| author | Haque, Mohafizul Md Maleque, Md. Abdul |
| author_facet | Haque, Mohafizul Md Maleque, Md. Abdul |
| author_sort | Haque, Mohafizul Md |
| building | IIUM Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T15:29:15Z |
| format | Article |
| id | iium-29636 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T15:29:15Z |
| publishDate | 1998 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-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 PeerReviewed 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 |
| 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 |
| title | 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_short | 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 |
| topic | TN600 Metallurgy TS200 Metal manufactures. Metalworking |
| url | http://irep.iium.edu.my/29636/ http://irep.iium.edu.my/29636/ http://irep.iium.edu.my/29636/ http://irep.iium.edu.my/29636/1/P6_1998.pdf |