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|Title:||Microstructure and mechanical behaviour of RHA and B4C reinforced aluminium alloy hybrid metal matrix composite|
|Authors:||Dwivedi, Shashi Prakash|
|Keywords:||Rice husk ash;Density;Porosity;Specific strength;Thermal expansion|
|Abstract:||Mechanical stir casting process was used to fabricate AA6082 matrix reinforced with various weight fraction of B4C (2.5% to 10%) and RHA (2.5% to 10%) particulates with various proportions. Microstructures and mechanical behaviour of metal matrix composite and hybrid metal matrix composite were observed. A metallurgical microscope was used to identify the distribution of reinforcements (B4C and RHA) in matrix. Fair distribution was observed in AA6082/7.5%B4C/|
2.5%RHA. The results revealed that tensile strength, hardness and toughness were maximum in AA6082/7.5%B4C/2.5% RHA. Other properties like density, porosity, specific strength and thermal expansion were also calculated to observe the effect of B4C and RHA addition in matrix alloy.
|ISSN:||0975-1017 (Online); 0971-4588 (Print)|
|Appears in Collections:||IJEMS Vol.24(2) [April 2017]|
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