Abstract
This article provides some insight into an area that has here-to-fore been ignored, namely, the matrix microstructure of cast metal matrix composites (MMC). Using the Al-4.5% Cu alloy as a model matrix alloy, the factors influencing the cast microstructure are explored on samples reinforced with several types of fibers. The nature of the fibers, their diameter and distribution along with conventional solidification parameters have a profound influence on the matrix microstructure. A full exploration of the relationships between properties, microstructures and processing parameters is required for the optimization of this class of materials.
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Additional information
A. Mortensen roreceived his engineering degree from Ecole des Mines de Paris in 1980. He is currently a Research Assistant working towards his Ph.D. in solidification in MMC at M.I.T. Mr. Mortensen is also a Student Member of TMS
M.N. Gungor roreceived his M.S. in materials engineering from M.I.T. in 1982. He is currently a Research Assistant working towards his Ph.D. in materials engineering at M.I.T. Mr. Gungor is also a Student Member of TMS
J.A. Cornie roreceived his Ph.D. in metallurgical engineering from the University of Pittsburgh in 1971. He is currently Director of the Metal and Ceramic Matrix Composites Processing and Evaluation Center at M.I.T. Dr. Cornie is also a Member of TMS
M.C. Flemings received his Sc.D. in metallurgy from M.I.T. in 1954. He is currently Toyota Professor of Materials Processing and is Head of the Department of Materials Science and Engineering at M.I.T. Professor Flemings is also a Member of TMS
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Mortensen, A., Gungor, M.N., Cornie, J.A. et al. Alloy Microstructures in Cast Metal Matrix Composites. JOM 38, 30–35 (1986). https://doi.org/10.1007/BF03257892
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DOI: https://doi.org/10.1007/BF03257892