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AuCuAgPtNi合金是时效硬化型合金,具有硬度高、弹性好、耐蚀性强、耐磨等优点,适用作弹性电刷、滑动接点、滑环等,特别是用作弹性电刷时即使在仓库贮存几年或在使用过程中,其接触压力松弛很小,国外某些文献也把它称作Negoro-G合金。该合金经400℃、1小时时效处理后主要性能为Hv395kg/mm~2、抗拉强度120kg/mm,E10150kg/mm~2、ρ18.7μΩ-cm、Ecu-0.131mv/℃、α4.8×10~(-4)/℃。该合会的基体组织为面心立方结构。时效处理后的析出物为面心立方结构的AuCu化合物。
AuCuAgPtNi alloy is age hardening alloy, with high hardness, good elasticity, corrosion resistance, wear resistance, etc., suitable for flexible brushes, sliding contacts, slip rings, etc., especially when used as a flexible brush storage in the warehouse A few years or during use, the contact pressure relaxation is very small, some foreign literature also called it Negoro-G alloy. After aging at 400 ℃ for 1 hour, the main properties of the alloy are Hv395kg / mm ~ 2, tensile strength 120kg / mm, E10150kg / mm ~ 2, ρ18.7μΩ-cm, Ecu-0.131mv / 10 ~ (-4) / ℃. The association of the matrix organization for the face-centered cubic structure. The precipitates after the aging treatment are face-centered cubic AuCu compounds.