Effect Of Secondary Plastic Deformation On The Microstructures And Mechanical Properties Of Cast Ai-7Si-Mg Alloy
The purpose ofthis research is to study microstructure and hardness of AI-7SiMg alloy under different cooling slope casting conditions and equal channel angular pressing (ECAP). The effect of cooling slope casting method with varying variables, such as pouring temperature (625°C - 640°C - 660°C -...
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my-usm-ep.611212024-09-17T02:19:37Z Effect Of Secondary Plastic Deformation On The Microstructures And Mechanical Properties Of Cast Ai-7Si-Mg Alloy 2014-12 Thuong, Nguyen Van TN1-997 Mining engineering. Metallurgy The purpose ofthis research is to study microstructure and hardness of AI-7SiMg alloy under different cooling slope casting conditions and equal channel angular pressing (ECAP). The effect of cooling slope casting method with varying variables, such as pouring temperature (625°C - 640°C - 660°C - 680°C), cooling slope length (150 mm - 250 mru- 350 mm) and cooling slope temperature (room temperature - 200°C - 400°C) and conventional casting method are investigated. The as-cast alloys and as-ECAPed alloys were analyzed based on Differential Scanning Calorimetry, Xray fluorescence, microstructures, hardness, X-ray Diffraction pattern, wear resistance, Secondary Electron Microscope and Energy Dispersive X-ray. Microstructure of conventional cast alloy cast at pouring temperature of 640°C was coarse and almost dendrite the structure. However, uniform, fine and globular microstructure could be obtained from cooling slope casting with pouring temperature range of 625°C - 660°C, cooling slope length range of 150 mm - 350 mm and slope temperature ranging from room temperature to 200°C_ This is due to copious nucleation occurred on slope surface and these nuclei were then detached due to the force convection during pouring process. 2014-12 Thesis http://eprints.usm.my/61121/ http://eprints.usm.my/61121/1/24%20Pages%20from%2000001785127.pdf application/pdf en public masters Perpustakaan Hamzah Sendut Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral |
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Universiti Sains Malaysia |
| collection |
USM Institutional Repository |
| language |
English |
| topic |
TN1-997 Mining engineering Metallurgy |
| spellingShingle |
TN1-997 Mining engineering Metallurgy Thuong, Nguyen Van Effect Of Secondary Plastic Deformation On The Microstructures And Mechanical Properties Of Cast Ai-7Si-Mg Alloy |
| description |
The purpose ofthis research is to study microstructure and hardness of AI-7SiMg
alloy under different cooling slope casting conditions and equal channel angular
pressing (ECAP). The effect of cooling slope casting method with varying variables,
such as pouring temperature (625°C - 640°C - 660°C - 680°C), cooling slope length
(150 mm - 250 mru- 350 mm) and cooling slope temperature (room temperature -
200°C - 400°C) and conventional casting method are investigated. The as-cast alloys
and as-ECAPed alloys were analyzed based on Differential Scanning Calorimetry, Xray
fluorescence, microstructures, hardness, X-ray Diffraction pattern, wear resistance,
Secondary Electron Microscope and Energy Dispersive X-ray. Microstructure of
conventional cast alloy cast at pouring temperature of 640°C was coarse and almost
dendrite the structure. However, uniform, fine and globular microstructure could be
obtained from cooling slope casting with pouring temperature range of 625°C - 660°C,
cooling slope length range of 150 mm - 350 mm and slope temperature ranging from
room temperature to 200°C_ This is due to copious nucleation occurred on slope
surface and these nuclei were then detached due to the force convection during pouring
process. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Thuong, Nguyen Van |
| author_facet |
Thuong, Nguyen Van |
| author_sort |
Thuong, Nguyen Van |
| title |
Effect Of Secondary Plastic Deformation On The Microstructures And Mechanical Properties Of Cast Ai-7Si-Mg Alloy |
| title_short |
Effect Of Secondary Plastic Deformation On The Microstructures And Mechanical Properties Of Cast Ai-7Si-Mg Alloy |
| title_full |
Effect Of Secondary Plastic Deformation On The Microstructures And Mechanical Properties Of Cast Ai-7Si-Mg Alloy |
| title_fullStr |
Effect Of Secondary Plastic Deformation On The Microstructures And Mechanical Properties Of Cast Ai-7Si-Mg Alloy |
| title_full_unstemmed |
Effect Of Secondary Plastic Deformation On The Microstructures And Mechanical Properties Of Cast Ai-7Si-Mg Alloy |
| title_sort |
effect of secondary plastic deformation on the microstructures and mechanical properties of cast ai-7si-mg alloy |
| granting_institution |
Perpustakaan Hamzah Sendut |
| granting_department |
Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral |
| publishDate |
2014 |
| url |
http://eprints.usm.my/61121/1/24%20Pages%20from%2000001785127.pdf |
| _version_ |
1811772881482285056 |