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J. Ocean Eng. Technol. 1997;11(2):18-27.    

Effects on extrusion ratio and temperature of shore fiber reinforcd metal matrix composites by rheo-compocating
반용융 가공법에 의한 단섬유 보강 급속복합재료의 강도에 미치는 압출비와 압출온도의 영향
윤한기,김석호,이상필
동의대학교 기계공학과,동의대학교 기계공학과,히로시마대학 기계공학부
© 1997 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Hybird Metal Matrix Composite, Squeeze Casting, Rheo-Compocasting, Fiber orientation, Extrusion Ratio, Extrusion Temperture, Curved Shape Die
핵심용어: 하이브리드 금속복합재료, 용탕 단조법, 반응용 가공법, 섬유 배향성, 압출비, 압출온도, 곡면 다이
Abstract
Al 6061 alloy reinforced with 10 vol.% ${delta}-Al_2O_3$ short fiber was fabricated by Rheo-compocasting and squwwze cating. Extrusion processings were performed at temperatures from 40$0^{circ}C$ to 55$0^{circ}C$ with various extrusion ratio for curved shape dies. In proportion to the increase of extrusion ratios and temperatures, ultimate tensile strength for extruded materials improved. SEM observation of fractured surfsce was capcble oof accounting for fracture mechanism and bounding state of fiber and matrix.
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