Lean, high conductivity, relaxation-resistant...

C - Chemistry – Metallurgy – 22 – C

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Details

C22C 9/06 (2006.01) C22C 9/00 (2006.01) C22F 1/08 (2006.01) H01L 23/495 (2006.01)

Patent

CA 2215559

A higher order beryllium-nickel-copper alloy and a process for making the same, the alloy being represented by the formula (0.15-0.5% Be) + (1.25-2.0% Ni) + [(0.06-1% Zr) and/or (0.06-1% Ti)], the balance copper, where the sum of %Zr and %Ti is generally within a range of 0.06% and 1%, characterized by improved stress relaxation resistance without sacrificing strength or electrical conductivity. Also provided is a higher order beryllium-cobalt-copper alloy and process, the alloy being represented by the formula (0.15-0.5% Be) + (0.35-0.6% Co) + [(0.06-1% Zr) and/or (0.06-1% Ti)], the balance copper, where the sum of %Zr and %Ti is generally within a range of 0.06% and 1%, characterized by improved stress relaxation resistance without sacrificing strength or electrical conductivity.

Alliage de béryllium-nickel-cuivre de qualité supérieure et méthode d'obtention; l'alliage est représenté par la formule (0,15-0,5% Be) + (1,25-2,0 % Ni) + ¢(0,06-1% Zr) et (ou) (0,06-1% Ti)!, le reste étant du cuivre; la somme du % Zr et du % Ti se situe généralement dans une plage de 0,06% à 1%; l'alliage possède une résistance améliorée à la relaxation de contrainte, sans perdre ses qualités de conductivité électrique et de solidité. L'invention présente également un alliage de béryllium-cobalt-cuivre et la méthode d'obtention; il est représenté par la formule (0,15-0,5 % Be) + (0,35-0,6 % Co) + ¢(0,06-1% Zr) et (ou) (0,06-1 % Ti)!, le reste étant du cuivre; la somme du % Zr et du % Ti se situe généralement dans une plage de 0,06% à 1%; l'alliage possède une résistance améliorée à la relaxation de contrainte, sans perdre ses qualités de conductivité électrique et de solidité.

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