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The International Conference on Applied Mechanics and Mechanical Engineering
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Volume Volume 18 (2018)
Issue 18th International Conference on Applied Mechanics and Mechanical Engineering.
Volume Volume 16 (2014)
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Tiwery, H., Hoziefa, W., El-Shabasy, A., El-Mahallawi, I. (2018). THE EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A356/ZrO2 NANO REINFORCED COMPOSITES. The International Conference on Applied Mechanics and Mechanical Engineering, 18(18th International Conference on Applied Mechanics and Mechanical Engineering.), 1-13. doi: 10.21608/amme.2018.34961
H. Tiwery; W. Hoziefa; Adel B. El-Shabasy; I. El-Mahallawi. "THE EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A356/ZrO2 NANO REINFORCED COMPOSITES". The International Conference on Applied Mechanics and Mechanical Engineering, 18, 18th International Conference on Applied Mechanics and Mechanical Engineering., 2018, 1-13. doi: 10.21608/amme.2018.34961
Tiwery, H., Hoziefa, W., El-Shabasy, A., El-Mahallawi, I. (2018). 'THE EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A356/ZrO2 NANO REINFORCED COMPOSITES', The International Conference on Applied Mechanics and Mechanical Engineering, 18(18th International Conference on Applied Mechanics and Mechanical Engineering.), pp. 1-13. doi: 10.21608/amme.2018.34961
Tiwery, H., Hoziefa, W., El-Shabasy, A., El-Mahallawi, I. THE EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A356/ZrO2 NANO REINFORCED COMPOSITES. The International Conference on Applied Mechanics and Mechanical Engineering, 2018; 18(18th International Conference on Applied Mechanics and Mechanical Engineering.): 1-13. doi: 10.21608/amme.2018.34961

THE EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A356/ZrO2 NANO REINFORCED COMPOSITES

Article 25, Volume 18, 18th International Conference on Applied Mechanics and Mechanical Engineering., Spring 2018, Page 1-13  XML PDF (6.05 MB)
Document Type: Original Article
DOI: 10.21608/amme.2018.34961
Authors
H. Tiwery1; W. Hoziefa2; Adel B. El-Shabasy3; I. El-Mahallawi4
1Department of Design and production Engineering. Faculty of Engineering, Ain Shams University, P.O. Box 11517, Cairo, Egypt.
2Department of Metallurgy, Mining & Petroleum Engineering, Faculty of Engineering, Al- Azhar University, P.O. Box 11884, Cairo, Egypt.
3Department of Design and production Engineering. Faculty of Engineering Ain Shams University, P.O. Box 11517, Cairo, Egypt.
4Department of Metallurgical Engineering, Faculty of Engineering, Cairo University, P.O. Box, 12316 Giza, Egypt.
Abstract
ABSTRACT
Aluminum A356 alloys have several interesting properties to be used in automobile
and aircraft industries. Recent studies have shown that the properties of cast
aluminum alloys are modified by the insertion of reinforcement nanoparticles. This
study investigates the microstructure and mechanical properties of ZrO2
nanoreinforced A356 alloy in T6 heat treated condition. Some samples of as cast
monolithic A356 and 3% ZrO2 nanoparticles (30nm) reinforced A356 were
prepared by stir casting from the semi-solid state followed by T6 heat treatment
process. The samples were solution treated at temperature of 550°C for 2hours
followed by aging at different temperatures (170°C&180°C), for different aging time
(2hr,4hr&6hr). The results obtained in this work showed enhancement in the
mechanical properties (ultimate strength, ductility and hardness). The as cast
samples showed values of 119 MPa,4.5% &23 HRB, respectively, while the
3%ZrO2 reinforced samples showed the values of 165MPa,4.7% &60 HRB,
respectively. After T6 heat treatment, the same values changed to 198MPa, 6.4%
&70HRB, respectively for the nanoreinforced samples. The microstructure
morphology was changed from lamellar eutectic structure to spheriodized eutectic
structure.
Keywords
Al-Si alloys; Nanocomposite; aging
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