Materials Transactions, Vol.49 No.02 (2008) pp.390-392
© 2008 The Japan Institute of Metals

Low-Pressure Infiltration Behavior of Molten Metal to Porous FeCrSi Preform

Yong Bum Choi¹, Kazuhiro Matsugi¹, Gen Sasaki¹ and Shunsaku Kondoh²

Porous preform reinforced aluminum alloy composite were prepared by the infiltration of molten metal using a low-pressure casting. The infiltration behavior of the filling pattern and the velocity profile obtained for alloys fabricated by the low-pressure casting process was investigated. The infiltration times in the case where a barrier palate was placed on the preform and at the pressure acceleration times of 1, 2 and 5 s were experimentally investigated under a constant applied pressure of 0.4 MPa. The infiltration at the pressure acceleration time of 1, 2 and 5 s ended in 5.36, 5.8 and 6.2 s, respectively. Hence, the infiltration time was short if the pressure acceleration time was short.

(Received 2007/11/1; Accepted 2007/11/16; Published 2008/1/25)

Keywords: infiltration behavior, preform, metal matrix composites (MMC)

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