ベリリウムを含む銅合金の研究(第 1 報)

概要

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The present work was undertaken with the purpose of finding the more excellent alloys than Beryllium-Bronze containing 2∿3% of beryllium. In this paper, the experimental results on Cu-Ni-Be alloys are dealt with. Among the alloys in the ranges of contents of 2∿10%Ni and 0.2∿2% Be, the alloy containing 2%Ni and 0.5%Be was found to have a very high tensile strength and electric conductivity when suitably heat-treatmented. In order to improve the properties of this alloy, the effects of the addition of iron or chromium were investigated, and finally, a very excellent alloy "Berychrome No.1" was obtained, which standard composition is 2%Ni, 0.5%Be, 0.5%Cr, other elements less than 0.5%, and the remainder Cu. The mechanical properties of this alloy are shown in the following table. [table] This alloy has a slightly low tensile strength and hardnees than those of Beryllium-Bronze, but the elongation and electric conductivity are higher than those of the father.
社団法人日本鉄鋼協会の論文
1937-11-25