Copper alloy having high strength, high electric conductivity and excellent bending workability

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United States of America Patent

PATENT NO 9177686
APP PUB NO 20130045130A1
SERIAL NO

13491942

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Abstract

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The present invention relates to a copper alloy having high strength, high electrical conductivity, and excellent bendability, the copper alloy containing, in terms of mass %, 0.4 to 4.0% of Ni; 0.05 to 1.0% of Si; and, as an element M, one member selected from 0.005 to 0.5% of P, 0.005 to 1.0% of Cr, and 0.005 to 1.0% of Ti, with the remainder being copper and inevitable impurities, in which an atom number ratio M/Si of elements M and Si contained in a precipitate having a size of 50 to 200 nm in a microstructure of the copper alloy is from 0.01 to 10 on average, the atom number ratio being measured by a field emission transmission electron microscope with a magnification of 30,000 and an energy dispersive analyzer.

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Patent Owner(s)

Patent OwnerAddress
KOBE STEEL LTDKOBE-SHI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aruga, Yasuhiro Kobe, JP 56 317
Fugono, Akira Shimonoseki, JP 7 45
Kajihara, Katsura Kobe, JP 33 199
Kudo, Takeshi Kobe, JP 66 1235

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