Investigation of Mechanical and Corrosion Properties of Al 7075/Garnet Metal Matrix Composites by Two-stage Stir Casting Process

The impact of Garnet addition into the AL7075 Aluminium matrix on the physical, mechanical and corrosion properties are studied in this research paper. Al 7075/garnet composites are fabricated by using two-stage stir casting method in different (0, 5, 10, 15) volume percentages. Photomicrograph of p...

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Bibliographic Details
Published in:Archives of metallurgy and materials 2021-01, Vol.66 (4), p.1123-1129
Main Authors: Sambathkumar, M., Navaneethakrishnan, P., Sasikumar, K.S.K., Gukendran, R., Ponappa, K.
Format: Article
Language:English
Subjects:
al 7075
Alloying elements
Aluminum base alloys
Aluminum matrix composites
Casting
Corrosion
corrosion properties
Corrosion rate
garnet
Garnets
mechanical properties
Metal matrix composites
Microhardness
Photomicrographs
Scientific papers
Tensile strength
two-stage stir casting
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Summary:The impact of Garnet addition into the AL7075 Aluminium matrix on the physical, mechanical and corrosion properties are studied in this research paper. Al 7075/garnet composites are fabricated by using two-stage stir casting method in different (0, 5, 10, 15) volume percentages. Photomicrograph of prepared samples revealed the uniform distribution of garnet reinforcement into the base matrix. The corrosion rate is calculated by potentiodynamic polarization method. The actual density is increased by around 1.2% for Al 7075 / garnet (15%) composite as compared to base alloy. Micro hardness of Al 7075 / garnet (15%) composite is raised by around 47 (34%) compare to as cast base matrix. Al7075 / garnet (15%) composite tensile strength stood at 252 Mpa, which is 40% greater than the base alloy. Al 7075 / 15% garnet composites reduce around 97% of corrosion rate than the base matrix. Alloy elements influenced the corrosion than Garnet reinforcement.
ISSN:2300-1909
1733-3490
2300-1909
DOI:10.24425/amm.2021.136432