Cu—Be alloy and method for producing same
AssigneesNGK Insulators, Ltd., The University of Electro-Communications
InventorsHiromi Miura, Naokuni Muramatsu
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Abstract
A Cu—Be alloy according to the present invention is a Co-containing Cu—Be alloy, in which the Co content is 0.005% to 0.12% by mass, and the number of Cu—Co-based compound particles having a particle size of 0.1 μm or more that can be confirmed on a TEM image at a magnification of 20,000 is five or less in a field of view of 10 μm×10 μm. Furthermore, a method for producing a Cu—Be alloy according to the present invention includes a solution annealing treatment step of subjecting a Cu—Be alloy raw material containing 0.005% to 0.12% by mass of Co and 1.60% to 1.95% by mass of Be to solution annealing treatment to obtain a solution-annealed material.
Claims13
A Cu—Be alloy containing Co,
- wherein the Co content is 0.005% to 0.114% by mass, the Be content is 1.60% to 1.95% by mass,
- the number of Cu—Co-based compound particles having a particle size of 0.1 μm or more that can be confirmed on a TEM image at a magnification of 20,000 is from one to five in a field of view of 10 μm×10 μm, and
- wherein the alloy is subjected to a solution annealing treatment step, a cold working step and an age hardening step.
A method for producing a Cu—Be alloy including a solution annealing treatment step of subjecting a Cu—Be alloy raw material containing 0.005% to 0.114% by mass of Co and 1.60% to 1.95% by mass of Be to solution annealing treatment to obtain a solution-annealed material,
- wherein the number of Cu—Co-based compound particles having a particle size of 0.1 μm or more that can be confirmed on a TEM image at a magnification of 20,000 is from one to five in a field of view of 10 μm×10 μm, and
- wherein the alloy is further subjected to a cold working step and an age hardening step.
A Cu—Be alloy containing Co,
- wherein the Co content is 0.005% to 0.114% by mass,
- the number of Cu—Co-based compound particles having a particle size of 0.1 μm or more that can be confirmed on a TEM image at a magnification of 20,000 is five or less in a field of view of 10 μm×10 μm,
- wherein tensile strength is 1,700 MPa or more, and
- wherein the alloy is subjected to a solution annealing treatment step, a cold working step and an age hardening step.
Dependencies are inferred from the claim text.