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Research Article

JCR. 2020; 7(15): 1101-1109


Investigations on Mechanical Behavior of Al2219Alloy-B4C Particulates Reinforced Composites

Subhashchandra S Ganiger, Mahadev Sakri,Shashidhar S, Madeva Nagaral.

Abstract
In the currentinvestigation, themechanical properties ofAl2219-2 and 4 wt. % of B4C composites
were displayed. The composites containing2 and 4 wt. % of B4C in Al2219 alloy were synthesized byliquid
metallurgy method. For the composites, fortification particles were preheated to a temperature of 500˚C and
afterward added in ventures of two into the vortex of liquid Al2219 alloy compound to improve the wettability and
dispersion. Microstructural examination was carried out by SEM. Mechanical properties of as cast Al2219 alloy
and Al2219-2 and 4 wt. % of B4C composites were evaluated as per ASTM standards. Microstructural
characterization by SEM and EDS confirmed the distribution and presence of micro boron carbide particles in the
Al2219 alloy matrix. The hardness, ultimate strength, yield strength and bending behaviour of Al2219 alloy
enhanced with the incorporation of 2 and 4 wt. % of micro B4C particles. Further, ductility of Al2219 alloy
decreased with the presence of B4C particles. Tensile fractography were studied on the tested samples to know the
various fractured mechanisms.

Key words: Al2219 Alloy, B4C particles, Mechanical Behaviour,Fractography



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