CORROSION RESISTANT ALUMINUM-BASED ALLOY

摘要

The present invention provides a corrosion resistant aluminum-based alloy consisting of a compound which has a composition represented by the general formula: AlaMbNocHfdCre wherein: M is at least one metal element selected from Ni, Fe and Co and a, b, c, d and e are atomic percentages falling within the following ranges: 50% ~ a ~ 88%, 2% ~ b ~ 25%, 2% ~ c ~ 15%, 4% ~ d ~ 20% and 4% ~ e ~ 20%, the compound being at least 50% by volume composed of an amorphous phase. The aluminum-based alloys not only have a high degree of hardness, strength and heat resistance but also exhibit significantly improved corrosion resistance.