摘要:
{Problems} To provide a copper alloy sheet material, which is excellent in the bending property, which has an excellent mechanical strength, which is less in anisotropy in those characteristics in the parallel direction to rolling and the perpendicular direction to rolling, and which is suitable for lead frames, connectors, terminal materials, and the like in electrical or electronic equipments, for connectors, for example, to be mounted on automotive vehicles, and for terminal materials, relays, switches, and the like. {Means to solve} A copper alloy sheet material, having a composition containing Ni in an amount of 1.0 mass% to 5.0 mass%, and Si in an amount of 0.1 mass% to 2.0 mass%, with the balance being copper and unavoidable impurities, wherein, in a crystal orientation analysis by an electron backscatter diffraction method, an area ratio of grains having an orientation in which a deviation from the Cube orientation {0 0 1} is within 15° is 5% to 50%, and 40 to 100 grains having the orientation in which the deviation from the Cube orientation {0 0 1} is within 15° are dispersed within 60 µm square; and a method of producing the same.
摘要:
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, 0.005 to 1.0% of Cr, 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. According to the invention, it is possible to provide a copper alloy having high strength, high electrical conductivity, and excellent bendability.
摘要翻译:本发明涉及具有高强度,高导电率和优异的弯曲性的铜合金,所述铜合金以质量%计含有0.4〜4.0%的Ni; ,Si:0.05〜1.0% 作为元素M,含有Cr:0.005〜1.0%,余量为铜和不可避免的杂质,其中,50〜200nm的析出物中含有的元素M和Si的原子数比M / Si 铜合金的微观结构平均为0.01〜10,原子数比是通过场放射透射电子显微镜以30,000倍的放大率和能量色散分析仪测量的。 根据本发明,可以提供具有高强度,高导电性和优异弯曲性的铜合金。
摘要:
Cu-Ni-Si-Co copper alloy strip having excellent balance between strength and electrical conductivity which can prevent the drooping curl is provided. The copper alloy strip for an electronic materials contains 1.0-2.5% by mass of Ni, 0.5-2.5% by mass of Co, 0.3-1.2% by mass of Si, and the remainder comprising Cu and unavoidable impurities, wherein the copper alloy strip satisfies both of the following (a) and (b) as determined by means of X-ray diffraction pole figure measurement based on a rolled surface: (a) among a diffraction peak intensities obtained by β scanning at α = 20° in a {200} pole figure, a peak height at β angle 145° is not more than 5.2 times that of standard copper powder; (b) among a diffraction peak intensities obtained by β scanning at α = 75° in a {111} pole figure, a peak height at β angle 185° is not less than 3.4 times that of standard copper powder.
摘要:
{Problems} To provide a copper alloy sheet material and a method of producing the same, which is high in Young's modulus and excellent in mechanical strength, and which is suitable for lead frames, connectors, terminal materials, and the like in electrical/electronic equipments, for connectors, for example, to be mounted on automotive vehicles, and for terminal materials, relays, switches, and the like. {Means to solve} A copper alloy sheet material, having an alloy composition comprising any one, two, or three of Cr, Zr, and Ti in 0.05 to 1.0 mass% in total, with the balance being copper and unavoidable impurities, wherein, in crystal orientation analysis by EBSD analysis, in connection with accumulation of atomic planes oriented toward the transverse direction (TD) of a rolled sheet, an area ratio of a region having atomic planes in which the angle formed by the normal direction of (111) plane and the TD is 20° or less, is more than 50%; and a method of producing the same.