Characteristic Strength of $\delta$-Al$_2$O$_3$/Aluminum Composite by Rheo-compocasting

반용융 가공법에 의한 $\delta$-Al$_2$O$_3$/Aluminum 복합재료의 강도 특성

A16061 alloy reinforced with 10 vol% $\delta$-A1$_2$O$_3$ short fiber have been fabricated by Rheo-compocasting and squeeze casting and extruded at high temperature using conical shape die and curved shape die with various extrusion ratios.. Tensile and hardness tests were carried out to examine mechanical properties of extruded materials and SEM observation of fractured surface was capable of accounting for fracture mechanism and bonding state of fiber and matrix.