Copper alloy having bendability and stress relaxation property
AssigneeKabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
InventorsYasuhiro Aruga, Ryoichi Ozaki, Hiroshi Sakamoto
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Abstract
A copper alloy contains 0.01% to 1.0% of Fe, 0.01% to 0.4% of P, and 0.1% to 1.0% of Mg with the remainder being copper and inevitable impurities and has a volume fraction of dispersoids having a particle diameter exceeding 200 nm of 5% or less, in which dispersoids having a particle diameter of 200 nm or less and containing Mg and P have an average particle diameter of 5 nm or more and 50 nm or less. The copper alloy preferably has an average particle diameter of dispersoids containing Fe and P of 20 nm or less. The copper alloy has improved bendability and stress relaxation property.
Claims7
A copper alloy having bendability and stress relaxation property and comprising 0.01 to 1.0 percent by mass of Fe, 0.01 to 0.4 percent by mass of P, and 0.1 to 1.0 percent by mass of Mg, with the remainder being copper and inevitable impurities, wherein the copper alloy has a volume fraction of dispersoids each having a particle diameter exceeding 200 nm of 5% or less, and wherein dispersoids each having a particle diameter of 200 nm or less and containing Mg and P have an average particle diameter of 5 nm or more and 50 nm or less.
Dependencies are inferred from the claim text.