Investigation of Graphite Influence on Al/Fe and Al2024/Fe Metal Matrix Composites
K. Santhy$^{1,2}$
$^{1}$CARE Group of Institutions, Department of Materials Science and Engineering, No. 27, Thayanur, Tiruchirappalli-620009, Tamil Nadu, India
$^{2}$Indus University, Institute of Technology and Engineering, Department of Materials and Metallurgical Engineering, Rancharda, Ahmedabad-382115, India
Received: 01.06.2019; final version - 20.01.2020. Download: PDF
Aluminium and aluminium alloy composites are a new generation metal matrix composite which have potential to satisfy the recent demands of advanced engineering applications. To improve the mechanical properties of Al/Al2024 alloys, iron and graphite reinforcements are selected for hybrid composite. To maintain the low density of the matrix, iron content is fixed as 4% wt. and graphite content is varied from 5 to 8% wt. Using optimized compaction load and sintering temperature, the Al–Fe–Graphite and Al2024–Fe–Graphite hybrid composites are fabricated by powder metallurgy process. The elemental powders and sintered products are characterized with the help of X-ray diffraction and scanning electron microscopy. The addition of graphite not only increases the density, it also increases the hardness of the hybrid composites. In comparison with Al hybrid composites, the Al2024 hybrid ones have better mechanical property.
Key words: Al and Al2024 alloy, graphite contained hybrid composite, mechanical property, powder metallurgy.
URL: http://mfint.imp.kiev.ua/en/abstract/v42/i04/0565.html
DOI: https://doi.org/10.15407/mfint.42.04.0565
PACS: 61.66.Dk, 61.72.Qq, 62.20.Qp, 81.05.Ni, 81.20.Ev
Citation: K. Santhy, Investigation of Graphite Influence on Al/Fe and Al2024/Fe Metal Matrix Composites, Metallofiz. Noveishie Tekhnol., 42, No. 4: 565—573 (2020)