International Journal of Aerospace and Lightweight Structures

doi: 10.3850/S2010428614000051

Optimal Production Process of Particulate Intermetallic Compound Reinforced Aluminium Metal Marix Composites

Yongbum Choi^1,a, Junichi Murakami², Takahiro Motoyama², Kazuhiro Matsugi¹, Kenjiro Sugio¹ and Gen Sasaki^{1 1}Materials and Production Engineering, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, 739-8527, Japan. ^aybchoi@hiroshima-u.ac.jp ²Department of Mechanical Science and Engineering, Hiroshima University, Higashi-Hiroshima, 739-8527, Japan.

ABSTRACT

Al₃Ni particles reinforced Aluminum alloy composites are fabricated by low pressure infiltration method. To generate Al3Ni particles, Nickel porous with 3 different specific surface area were used, 1250m²/m³, 2800m²/m³, 5800m²/m³. Porous nickel reacted with the molten aluminum alloy at 973k and holding time of 600s, the applied pressure was 0.1MPa under furnace cooling. To observe the generated intermetallic compounds, area fraction of Al₃Ni was investigated. Moreover, the spatial distribution of Al₃Ni particles was evaluated by analyzing SEM images. Furthermore, the porosity of Al₃Ni particles reinforced Al metal matrix composites were investigated.

Keywords: Metal matrix composites, Nickel porous, Porosity, Aspect ratio, Specific surface area.

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