Numerical Simulation and Quantitative Assessment of Particle Distribution in SiC/Al-Si Composites

Li Bin1; Xu Qingyan1; Li Xudong2; Liu Baicheng1

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Numerical Simulation and Quantitative Assessment of Particle Distribution in SiC/Al-Si Composites
Issue 10, Pages: 629-631(2006)
Published： 2006 ，
DOI：

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[1]李斌,许庆彦,李旭东,柳百成.SiC/Al-Si复合材料颗粒分布的数值模拟[J].特种铸造及有色合金,2006(10):629-631+604.

Li Bin1, Xu Qingyan1, Li Xudong2, et al. Numerical Simulation and Quantitative Assessment of Particle Distribution in SiC/Al-Si Composites. [J]. Special Casting & Nonferrous Alloys (10):629-631(2006)
[1]李斌,许庆彦,李旭东,柳百成.SiC/Al-Si复合材料颗粒分布的数值模拟[J].特种铸造及有色合金,2006(10):629-631+604. DOI：

Li Bin1, Xu Qingyan1, Li Xudong2, et al. Numerical Simulation and Quantitative Assessment of Particle Distribution in SiC/Al-Si Composites. [J]. Special Casting & Nonferrous Alloys (10):629-631(2006) DOI：

摘要

介绍了颗粒分布的定量分析技术在颗粒增强复合材料性能预测方面的研究方法以及应用进展。在对搅拌铸造法制备SiC颗粒增强Al-7.0Si复合材料凝固过程的宏/微观数值模拟的基础上

将样方法以及方差分析法嵌入数值模型

对不同颗粒体积分数条件下复合材料颗粒分布均匀性进行了定量分析

并与试验结果进行了对比。结果表明:将宏/微观数值模拟与定量分析技术相结合

能够更为准确地分析不同工艺参数对复合材料微观组织以及颗粒分布的影响。在本试验条件下

随着SiC颗粒体积分数的增加

样方法中的颗粒均匀性参数值以及方差系数都逐渐减小

SiC颗粒分布更均匀。

Abstract

Research methodology and development of quantitative analysis on particle distribution in particle reinforced metal matrix composites have been presented on the basis of macro and micro simulation of solidification process of SiC particle reinforced Al-7Si composites made by stirring casting

and the quadrat method and variance analysis method are considered in the numerical simulation.Effects of particle volume fraction on particle distribution homogeneity have been investigated

and the simulated results were compared with experimental ones.The results show that the effects of different technical parameters on microstructure and particle distribution can be analyzed accurately when macro and micro numerical simulation are coupled with quantitative analysis techniques.