Influence of Sic and Al2O3 Particulate Reinforcement on the Mechanical Properties of ZA27 Metal Matrix Composites

B.N. Anjan; G.V. Preetham Kumar

doi:10.4028/www.scientific.net/MSF.969.122

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HomeMaterials Science ForumMaterials Science Forum Vol. 969Influence of Sic and Al2O3 Particulate...

Influence of Sic and Al₂O₃ Particulate Reinforcement on the Mechanical Properties of ZA27 Metal Matrix Composites

Abstract:

Zinc aluminum based matrix composites reinforced with SiC and Al₂O₃ particles have significant applications in the automobile field. Stir casting method followed by squeeze process was used for fabrication. ZA27 composites reinforced with SiC and Al₂O₃ particles (20-50µm) in various weight percentage (wt%) ranges from 0-10 in a step of 5 each was fabricated. OM, SEM and EDS analysis of microstructures obtained for matrix alloy and reinforced composites were performed in order to know the effect of varying wt% on physical and mechanical properties of composites. Squeeze casting technique shows better features such as fine microstructure as a result of low porosity and good bonding between matrix and reinforcement. Addition of reinforcements decreased the densities of matrix alloy. SiC reinforced composites showed better results as compared with Al₂O₃ reinforced ones. Hardness and ultimate tensile strength value of 10 wt% reinforced composites showed improved results.

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Periodical:

Materials Science Forum (Volume 969)

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122-127

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.969.122

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Online since:

August 2019

Authors:

B.N. Anjan*, G.V. Preetham Kumar

Keywords:

Al₂O₃, Mechanical Properties, MMCs, SiC, Stir Casting, ZA27

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