CASTING ALUMINUM ALLOY IN WHICH SUPER HIGH STRENGTH CNT IS DISPERSED AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A casting aluminum alloy in which super high strength CNT is dispersed and a manufacturing method thereof are provided to disperse CNT of super high strength, which is 600MPa or greater, by enhancing the strength by a precipitate phase(Al2Cu) through CNT dispersion and age hardening.;CONSTITUTION: A casting aluminum alloy in which super high strength CNT is dispersed is manufactured by being inserted into aluminum alloy molten metal, which is formed by the mixing/milling/sintering of Cu(copper) and CNT powder, in an intermediate material form. The CNT content is 1 to 5 vol%. Al2Cu phase is extracted from the aluminum alloy by an aging treatment after the dissolution of the intermediate material.;COPYRIGHT KIPO 2013;[Reference numerals] (AA,BB) Increase of strength resulting from precipitation of Al2Cu