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Evolution of microstructure in centrifugal cast Al-Cu alloy |
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| Authors: | Sui Yanwei Li Bangsheng Liu Aihui Guo Jingjie Fu Hengzhi |
| Affiliation: | 1. School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China;School of Materials Science and Engineering, Harbin Institute of Technology, Harbi 2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China 3. Department of Mechanical Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, China |
| Abstract: | In this research, the effects of centrifugal radius and mould rotation speed on microstructure in centrifugal-cast Al-Cu alloy have been investigated. The results show that, with increase of the centrifugal radius or mould rotation speed, the grain size of centrifugal-cast Al-Cu alloy decreases gradually, while the content of white phases containing the Al2Cu precipitated from α-phase, divorced eutectic and regular eutectic microstructure increases, leading to higher Cu macrosegregation. The variation level of microstructure in centrifugal-cast Al-Cu alloy at 600 rpm of mould rotation speed is greater than that at 300 rpm. |
| Keywords: | centrifugal casting Al-Cu alloy microstructure |
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