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CSME 2025/2
Volume 46 No.1
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101-107
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Microstructural Evolution and Mechanical Properties of ZA27/Al2O3/MoS2 Metal Matrix Hybrid Nanocomposites
Shiva Kumar Nagavelly a, Vasu V b and Narasaiah N c
aAssistant Professor, Department of Mechanical Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.
bProfessor, Department of Mechanical Engineering, National Institute of Technology Warangal, Warangal, Telangana 506004, India.
cProfessor, Department of Metallurgical and Materials Engineering, National Institute of Technology Warangal, Warangal, Telangana 506004, India.
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Abstract:
Metal matrix hybrid nanocomposites are widely
used due to their good strength and wear resistance
properties. Because of its light weight and excellent
mechanical properties, the ZA-27 alloy is used in
industrial and automobile applications. The research
article is focused on manufacturing of ZA-27 matrix
material reinforced by 1.5 wt. % of Aluminium Oxide
(Al2O3) and 0.5 wt.% of Molybdenum Disulphide
(MoS2) hybrid micro and nanocomposites by using
stir casting followed by ultrasonic assisted technique.
The hybrid micro and nanocomposite samples were
studied for chemical composition by using EDS
analysis. Microstructure investigation of ZA27/
Al2O3/MoS2 nanocomposites was carried out with
help of SEM. The hardness, tensile strength and yield
strength are mechanical properties of
ZA27/Al2O3/MoS2 hybrid micro and nanocomposites
samples were tested. The uniform dispersion of
Al2O3 and MoS2 nanoparticles in matrix alloy were
observed in the microstructural analysis of hybrid
micro and nanocomposites. From results it is
observed that hardness of hybrid nanocomposites was
increased 20% and 8% equated to base alloy and
hybrid composites. The tensile properties were
increased 19.4% and 7.1% related to ZA-27 alloy and
hybrid composites.
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Keywords: ZA27 alloy, Nano particles, Stir Casting, Hybrid Nanocomposites, Mechanical Properties
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*Corresponding author; e-mail:
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©
2025
CSME , ISSN 0257-9731
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