Microstructure and tensile properties of friction stir processed Al-Si alloy
In this study, a solid state processing tool for microstructure modification and material properties enhancement; friction stir processing (FSP) was applied on the surface of as-cast Al-Si-Cu-Ni aluminium alloy. Samples were subjected to FSP using fixed tool rotation speed 1400 rpm and traverse spee...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Scholars Middle East Publishers
2018
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/3535/1/AJ%202018%20%28696%29%20Microstructure%20and%20tensile%20properties%20of%20friction%20stir%20processed%20Al-Si%20alloy.pdf http://eprints.uthm.edu.my/3535/ |
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| Summary: | In this study, a solid state processing tool for microstructure modification and material properties enhancement; friction stir processing (FSP) was applied on the surface of as-cast Al-Si-Cu-Ni aluminium alloy. Samples were subjected to FSP using fixed tool rotation speed 1400 rpm and traverse speed 42 mm/min, with tool angle tilted 3˚.The influence of the FSP on the microstructure and tensile properties of the cast AlSi-Cu-Ni alloy samples were studied. Microstructural evolution of the samples was investigated using optical microscope (OM) and scanning electron microscope (SEM), tensile test carried out at 1 mm/min cross-head speed. The results showed that FSP improved the tensile strength of the samples by decreasing particles size and porosity. FSP improved the alloy strength by about 54%. |
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