Method for inducing superplastic properties in nonsuperplastic metal and alloy powders

摘要

A method for inducing superplastic properties in nonsuperplastic materials, metals or alloys, by mixing in powder form, the nonsuperplastic material with a second alloy having superplastic characteristics. The powder mixture is compacted into a billet and superplastically formed. The grain boundaries of the nonsuperplastic material are subsequently restored by heating the formed billet to a temperature slightly below the melting point of the second alloy.