Precipitation strengthened metal alloy article
AssigneeMaterion Corporation
InventorsChristopher Damschroder, W. Raymond Cribb
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Abstract
A metal alloy article having a combination of mechanical properties which are uniform across a cross-sectional area of the article is disclosed. The metal alloy is a precipitation hardenable alloy, such as an aluminum, copper, nickel, iron, or titanium alloy. In specific embodiments, the metal alloy is a copper-nickel-tin alloy with a nominal composition of Cu—15Ni—8Sn. The article is strengthened by process treatment steps including solution annealing, cold working, and precipitation hardening. The article has a constant cross-section along a length thereof with a minimum 0.2% offset yield strength of about 70 ksi.
Claims11
An article, comprising:
- a precipitation hardened copper-nickel-tin alloy;
- and
- having a constant cross-section along a length of the article,
- wherein the article has a uniform 0.2% offset yield strength and a uniform hardness across the cross-section of the article.
Dependencies are inferred from the claim text.