ALUMINIUM-LITHIUM, ALUMINIUM-MAGNESIUM AND MAGNESIUM-LITHIUM ALLOYS OF HIGH TOUGHNESS

摘要

Increases the hardness of Al-Li alloys, Al-Mg and Mg-Li, according to a melting method and refining to reduce the concentration of alkali metal impurities below about 1 ppm and preferably below about 0.1 ppm (I), the constituents of hydrogen gas and chlorine being also significantly reduced.