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Microstructural characterization and corrosion behavior of in-situ composites A356/Al<sub>3</sub>Ni used in 3.5 wt% NaCl solution

Microstructural characterization corrosion behavior in-situ is a M.Tech project topic for Metallurgical & Materials Engineering. Explore the…

Microstructural characterization corrosion behavior in-situ is a M.Tech project topic for Metallurgical & Materials Engineering. It gives students a clear starting point for research, implementation planning, and documentation.

Microstructural characterization corrosion behavior in-situ Project Details

Abstract

The current research focuses on the fabrication via stir casting and characterization of in-situ A356/Al₃Ni composites with different weight fractions of pure nickel powder (5 wt%, 10 wt%, and 15 wt%). The aim is to improve the wettability, uniformity, and thermodynamic stability of reinforcement particles in the aluminum matrix. The main techniques used are microhardness testing, microstructural analysis, and corrosion studies in a 3.5 wt% NaCl solution. Microstructural analysis showed in-situ formation of the Al₃Ni intermetallic phase and significant refinement of the A356 aluminum matrix. The Al₃Ni particles contributed to an increase in the hardness and corrosion resistance of the alloy. The composite containing 15 wt% of Ni demonstrated the

highest hardness of 152 HV while the base alloy possessed 76 HV. The 5 wt% Ni composite had a significantly better corrosion resistance than the others with a 97% improvement.

Reference Paper Microstructural characterization and corrosion behavior of in-situ composites A356/Al<sub>3</sub>Ni used in 3.5 wt% NaCl solution
Domain Metallurgical & Materials Engineering
Sub-Domain Processing & Characterization / Characterization / Corrosion Testing
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