LIGHT-WEIGHT, HIGH STRENGTH BERYLLIUM-ALUMINIUM ALLOY

摘要

A light weight, high strength temary or higher-order cast beryllium-aluminum all oy, including approximately 60 to 70 weight % beryllium, one or both of from approximately 0.5 to 4 weight % silicon and from 0.2 to 4.25 weight % silver, with the balance aluminum. Beryllium strengthening elements selected from the group consisting of copper, n ickel, or cobalt may be present at from 0.1 to 0.75 weight % of the alloy to increase the alloy strength.