A COMBINED MICROSTRUCTURE STRENGTHENING ANALYSIS OF SICP/AL METAL-MATRIX COMPOSITES
A COMBINED MICROSTRUCTURE STRENGTHENING ANALYSIS OF SICP/AL METAL-MATRIX COMPOSITES
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DOI：
10.1016/0010-4361(95)91381-e
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发表时间：
1995-03-01
期刊：
影响因子：
--
通讯作者：
CHEN, R
中科院分区：
文献类型：
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作者：
SEKINE, H;CHEN, R
结合显微组织强化分析预测了SiC(p)/Al金属基复合材料的屈服强度。修正剪切滞后理论可用于预测颗粒增强高强铝复合材料的屈服强度，但由于未考虑颗粒掺入后基体组织的变化，因此对纯铝和铸铝基制备的复合材料的屈服强度低估。基体微观结构的改变导致屈服强度的提高，在SiC颗粒增强低强度铝复合材料的总屈服强度增加中占较大比例。研究了几种微观组织强化机制，评价了它们对基体屈服强度的影响。综合组织强化分析结果与实验结果吻合较好。
A combined microstructure strengthening analysis was made to predict the yield strength of SiC(p)/Al metal matrix composites. The modified shear lag theory can be used to predict the yield strength of particle-reinforced high strength aluminium composites, but the yield strength is underestimated for composites prepared from pure and cast aluminium matrices because the change of matrix microstructure after particle incorporation is not considered. The increased yield strength due to the change of matrix microstructure represents a large increment of the total increased yield strength of SiC particle-reinforced low strength aluminium composites. Several microstructure strengthening mechanisms are examined to evaluate their effects on the matrix yield strength. The result of the combined microstructure strengthening analysis is consistent with experimental results.