A simple stir casting technique for the preparation of in situ Fe-aluminides reinforced Al-matrix composites

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• 作者：Susanta K. Pradhan ; ^{susan.kp@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Subhranshu Chatterjee ; Amitava Basu Mallick ; Debdulal Das
• 关键词：Al-matrix composite ; Stir casting ; In situ composite ; Iron aluminide ; Intermetallic
• 刊名：Perspectives in Science
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：8
• 期：Complete
• 页码：529-532
• 全文大小：1541 K

文摘

This article presents a simple stir casting technique for the development of Fe-aluminides particulate reinforced Al-matrix composites. It has been demonstrated that stirring of super-heated Al-melt by a mild steel plate followed by conventional casting and hot rolled results in uniform dispersion of in situ Al₁₃Fe₄ particles in the Al matrix; the amount of reinforcement is found to increase with increasing melt temperature. With reference to base alloy, the developed composite exhibits higher hardness and improved tensile strength without much loss of ductility; since, composite like base alloy undergoes ductile mode of fracture.