Deformation mechanism of compression of 2024 Al alloy in semi-solid state |
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| Authors: | Shoujing Luo Jiakuan Sun |
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| Affiliation: | (1) School of Materials Science and Engineering, Harbin Institute of Technology, 150001 Harbin, China |
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| Abstract: | The deformation mechanism of alloy in the semi-solid state has been investigated, with the compression of 2024 Al alloy in the semi-solid state as an example. Experimental results showed that the compressive deformation of 2024 Al alloy in the semi-solid state was mainly caused by the liquid flowing under the hydrostatic compressive stress, the grain boundary sliding under the shear stress and the plastic deformation of grain under the normal compressive stress. Among them, the grain boundary sliding was mainly accommodated by the nucleation and growth of cavity under the hydrostatic tensile stress. |
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| Keywords: | semi-solid compression 2024Al alloy grain boundary sliding |
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