Investigating The Role Of Pouring Temperature, Heat Treatment And Mold Preheating Temperature On The Hardness And Microstructure Of The Inner Surface Of Al-15Mg2Si In Situ Composite Pipe Fabricated By Centrifugal Casting Method.

Articles in Press

Document Type : Original Research Article

Authors

1 Department of Materials Engineering,Faculty of Engineerig , Imam Khomeini International University (IKIU), Qazvin. Iran

2 Assistant Professor, Research Department of Ceramic, Materials and Energy Research Center (MERC), Meshkindasht, Alborz, Iran

3 Associate Professor, Department of Materials Engineering, Faculty of Engineerig, , Imam Khomeini International University (IKIU), Qazvin, Iran

4 Research Department of Ceramic, Materials and Energy Research Center (MERC), Meshkin Dasht, Alborz, Iran

Abstract

This study aims to place Mg2Si reinforcing particles in the inner wall of the aluminum matrix composite tube and to optimize the microstructure and hardness of the inner wall using temperature parameters. By using Al-Si alloy and creating in-situ Mg2Si particles in this alloy system and producing the pipe by centrifugal casting method due to the low density of Mg2Si particles, we will get the accumulation of these reinforcing particles would be obtained in the inner wall of the pipe. In this study, the effect of dissolution, aging, mold preheating, and pouring temperature on the hardness of the inner wall of Al-15%wt Mg2Si alloy was investigated and the most optimal manufacturing conditions and the interaction of variables were determined using Design Expert software to achieve the highest hardness. Also, the most effective variable among the mentioned variables was heat treatment temperature and the best temperature was about 535 degrees Celsius. Also, the best pouring temperature was found to be around 700 degrees Celsius and it was determined that a higher temperature is needed to preheat the mold to obtain reinforcement with uniform placement.

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Main Subjects

Advanced Ceramics Progress

Articles in Press, Accepted Manuscript
Available Online from 10 September 2023

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History

  • Receive Date: 20 June 2023
  • Revise Date: 23 July 2023
  • Accept Date: 10 September 2023

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