Development of processing maps for Al/SiC_p composite using fuzzy logic

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• 作者：S. Ramanathan ; R. Karthikeyan ; Manoj Gupta
• 关键词：Metal matrix composites ; Flow stress prediction ; Regression analysis ; Processing maps ; Fuzzy logic
• 刊名：Journal of Materials Processing Technology
• 出版年：2007
• 期刊代码：102_09240136
• 类别：et
• 出版时间：5 March 2007
• 卷：183
• 期：1
• 页码：104-110
• 文件大小：615 K

摘要

In the present study the aluminium reinforced with 10%SiC_p particulate composites were produced through powder metallurgy route and processing map was developed. The composite specimens were subjected to compression test at different strains, strain rates and temperatures. Using the load-stroke data, flow stress–strain were evaluated. Fuzzy logic has been implemented for the prediction of flow stress. Power dissipation efficiency and instability parameter were evaluated and plotted with temperature and stain rate using the predicted values of flow stress from fuzzy logic. The contour plots were superimposed to obtain the processing maps. The dynamic recrystallisation zones and instable zones were identified and validated through micrographs. The processing maps can be used to select optimum strain rates and temperatures for effective hot working of Al/10%SiC composites.