Effect of centrifugal counter-gravity casting on solidification microstructure and mechanical properties of A357 aluminum alloy
To investigate the influence of Centrifugal Counter-gravity Casting (C3) process on the solidification microstructure and mechanical properties of the casting, A357 aluminum alloy samples were produced by different process conditions under C3. The results show that C3 has better feeding capacity com...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Foundry Journal Agency
2014-01-01
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| Series: | China Foundry |
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| Online Access: | http://www.foundryworld.com/uploadfile/2014022660884345.pdf |
| _version_ | 1828452142480883712 |
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| author | Li Xinlei Hao Qitang Miao Xiaochuan |
| author_facet | Li Xinlei Hao Qitang Miao Xiaochuan |
| author_sort | Li Xinlei |
| collection | DOAJ |
| description | To investigate the influence of Centrifugal Counter-gravity Casting (C3) process on the solidification microstructure and mechanical properties of the casting, A357 aluminum alloy samples were produced by different process conditions under C3. The results show that C3 has better feeding capacity compared with the vacuum suction casting; and that the mechanical vibration and the convection of melts formed at the centrifugal rotation stage suppress the growth of dendrites, subsequently resulting in the refinement of grains and the improvement of mechanical properties, density and hardness. A finer grain and higher strength can be obtained in the A357 alloy by increasing centrifugal radius and rotational speed. However, casting defects will appear near the rotational axis and the mechanical properties will decrease once the rotational speed exceeds 150 r·min-1. |
| first_indexed | 2024-12-10T23:48:55Z |
| format | Article |
| id | doaj.art-36cdebaf36a74d24b0e500afe5339237 |
| institution | Directory Open Access Journal |
| issn | 1672-6421 |
| language | English |
| last_indexed | 2024-12-10T23:48:55Z |
| publishDate | 2014-01-01 |
| publisher | Foundry Journal Agency |
| record_format | Article |
| series | China Foundry |
| spelling | doaj.art-36cdebaf36a74d24b0e500afe53392372022-12-22T01:28:51ZengFoundry Journal AgencyChina Foundry1672-64212014-01-011111419Effect of centrifugal counter-gravity casting on solidification microstructure and mechanical properties of A357 aluminum alloyLi Xinlei0Hao Qitang1Miao Xiaochuan2State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaXi'an Chaoma Technology Company Limited, Xi’an 710025, ChinaTo investigate the influence of Centrifugal Counter-gravity Casting (C3) process on the solidification microstructure and mechanical properties of the casting, A357 aluminum alloy samples were produced by different process conditions under C3. The results show that C3 has better feeding capacity compared with the vacuum suction casting; and that the mechanical vibration and the convection of melts formed at the centrifugal rotation stage suppress the growth of dendrites, subsequently resulting in the refinement of grains and the improvement of mechanical properties, density and hardness. A finer grain and higher strength can be obtained in the A357 alloy by increasing centrifugal radius and rotational speed. However, casting defects will appear near the rotational axis and the mechanical properties will decrease once the rotational speed exceeds 150 r·min-1.http://www.foundryworld.com/uploadfile/2014022660884345.pdfcentrifugal counter-gravity castingvacuum suction castingrotational speedsolidification feeding |
| spellingShingle | Li Xinlei Hao Qitang Miao Xiaochuan Effect of centrifugal counter-gravity casting on solidification microstructure and mechanical properties of A357 aluminum alloy China Foundry centrifugal counter-gravity casting vacuum suction casting rotational speed solidification feeding |
| title | Effect of centrifugal counter-gravity casting on solidification microstructure and mechanical properties of A357 aluminum alloy |
| title_full | Effect of centrifugal counter-gravity casting on solidification microstructure and mechanical properties of A357 aluminum alloy |
| title_fullStr | Effect of centrifugal counter-gravity casting on solidification microstructure and mechanical properties of A357 aluminum alloy |
| title_full_unstemmed | Effect of centrifugal counter-gravity casting on solidification microstructure and mechanical properties of A357 aluminum alloy |
| title_short | Effect of centrifugal counter-gravity casting on solidification microstructure and mechanical properties of A357 aluminum alloy |
| title_sort | effect of centrifugal counter gravity casting on solidification microstructure and mechanical properties of a357 aluminum alloy |
| topic | centrifugal counter-gravity casting vacuum suction casting rotational speed solidification feeding |
| url | http://www.foundryworld.com/uploadfile/2014022660884345.pdf |
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