期刊
出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0954408917710555
关键词
Teaching-learning-based optimization algorithm; in-situ process; metal matrix composite; mechanical properties; optimization
In modern in situ composite fabrication processes, the selection of optimal process parameters is greatly important for the preparation of best quality metal matrix composite. For achieving high-quality composite, an efficient optimization technique is essential. The present study explores the potential of a new robust algorithm named teaching-learning-based optimization algorithm for in situ process parameter optimization problems in fabrication of Al-4.5%Cu-TiC metal matrix composite fabricated by stir casting technique. Optimization process is carried out for optimizing the in situ processing parameters i.e. pouring temperature, stirring speed, reaction time for achieving better mechanical properties, i.e. better microhardness, toughness, and ultimate tensile strength. Taguchi's L-25 orthogonal array design of experiment was used for performing the experiments. Grey relational analysis is used for the conversion of the multiobjective function into a single objective function, which is being used as the objective function in the teaching-learning-based optimization algorithm. Confirmation test results show that the developed teaching-learning-based optimization model is a very efficient and robust approach for engineering materials process parameter optimization problems.
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