| A study of interparticulate strain in a hot-extruded SiCp/2014 Al composite |
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| 作者姓名： | Ying Hu Qiu-bao Ou-yang Lei Yao Sheng Chen Lan-ting Zhang |
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| 作者单位： | School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| 摘 要： | We report a correlative study of strain distribution and grain structure in the Al matrix of a hot-extruded SiC particulate-reinforced Al composite (SiCp/2014 Al). Finite element method (FEM) simulation and microstructure characterization indicate that the grain structure of the Al matrix is affected by the interparticulate strain distribution in the matrix during the process. Both electron-backscattered diffraction (EBSD) and selected-area electron diffraction (SAED) indicated localized misorientation in the Al matrix after hot extrusion. Scanning transmission electron microscopy (STEM) revealed fine and recrystallized grains adjacent to the SiC particulate and elongated grains between the particulates. This result is explained in terms of recrystallization under an interparticulate strain distribution during the hot extrusion process.
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| 关 键 词： | metal-matrix composites strain distribution recrystallization grain structure |
A study of interparticulate strain in a hot-extruded SiCp/2014 Al composite |
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| Ying Hu,Qiu-bao Ou-yang,Lei Yao,Sheng Chen,Lan-ting Zhang.A study of interparticulate strain in a hot-extruded SiCp/2014 Al composite[J].International Journal of Minerals,Metallurgy and Materials,2019,26(4):523-529. |
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