ニッケル青銅及特殊ニッケル青銅の二三の性質に就て

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The authers investigated the mechanical and chemical properties of some temperhardenable Nickel-Bronzes, v. z., No.1 (Ishikawa Metal), No.3 and No.4. The last-mentioned was invented by the present authors, as one of the results of study on Cu-Ni-Fe-Al alloy-series (10-25%Ni, Fe<20%, Al<7%, Cu balance) The Nickel-Bronze No.4. combines great strength and hardness with high corrosion resistance, its properties being as follows. (1) nominal composition of Nickel-Bronze No.4 Ni% Fe% Al% Zn% others% 10 10 4.5 <2 <1 (2) Properties of Nickel Bronze No. 4 Rods specific gravity 8.26(20℃) coefficient of thermal 19.0×10^<-6>(20-500℃) expansion electric conductivity 9.4% (Cu=100%) yield point (0.2%) 58-75kg/mm^2 tensile strength 80-95kg/mm^2 elongation (50mm) 17-20% Brinell hardness number 210-250 heat treatment tempering at ca. 550℃ after quenching at 900-950℃ or hot-working. For comparison, some specimens of Kunial Copper and Brass (I.C.I., England), and K-Monel Metal (International Nickel Co., U.S.A.), were examined, and then some hardenable Nickel-Tin bronzes touched upon.
社団法人日本鉄鋼協会の論文
1938-06-25