The heat treatment response of semisolid formed Al–5Fe–4Cu alloy |
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| Authors: | Liu Bo Huang Hong Jun |
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| Institution: | 1. School of Naval Architecture and Mechanical-Electrical Engineering, Zhejiang Ocean University, Zhoushan, China;2. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, China |
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| Abstract: | The effect of heat treatment on both microstructures and performances of semisolid Al–5Fe–4Cu alloy was investigated with scanning electron microscopy (SEM), transmission electron microscopy (TEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD) and tensile test. The results showed that the semi-solid Al–5Fe–4Cu alloy’s response to the solution heat treatment (SHT) is abnormal compared with the conventional semi-solid Al alloys, i.e. the tensile properties of the semi-solid Al–5Fe–4Cu alloy decreased significantly after SHT. Nevertheless, the semi-solid Al–5Fe–4Cu alloy subject to direct ageing without SHT could exhibit conspicuous improvement of the tensile properties. And, the reason of the abnormal results has been analysed and discussed in detail. |
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| Keywords: | Al–5Fe–4Cu alloy semi-solid processing heat treatment microstructure mechanical properties |
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