【摘要】 电子工业用的低电阻Ｃｕ－Ｂｅ弹性合金含有量０．２５％～０．７２％Ｂｅ，１．３％～１．５％Ｎｉ，余量为Ｃｕ．采用真空熔炼非真空浇注，热开坯，冷加工制成板材。经过８６０～９００℃淬火，进行４０％的冷加工，在４００～８０℃，时效２．５ｈ后，合金获得下列性能：电阻率４．０６～４．２７×１０￣（－５）Ω·ｃｍ，弹性模量１２０５４０～１３７２００Ｐａ，抗拉强度５１４～７８９ＭＰａ，延伸率１４～３４，硬度Ｈｖ＝１６０～２３０．更多还原

【Abstract】 Cu-Be elastic alloy of low electric resistance is investigated. Thecomposition of the alloy is 0.25%一0.72%Be,1.3%一1.5%Ni,with thebalance of copper. Melted under vacuum, cast in air,hot-rolled and cold-rolled, the alloy plate is formed. Quenched at 860一900℃, cold-workedwith 40%deformation amount, then aged at 400-480℃for 2.5 hours, thealloy has had following properties:resistivity(4.06一4.27)×10-5Ωcm elastic mould 120540-137200MPa tensile strength 514一789MPa elongation 14%-34%hardness Hv=160一230更多还原