【摘要】 研究了 Ni或 Co的加入对真空感应熔炼制备的 Cu Cr2 5合金的组织形貌和物理性能的影响。结果表明 :加入 Ni或 Co后可以明显改善 Cu Cr2 5合金的显微组织 ,避免出现 Cr的宏观偏析 ,大大提高了成品率 ,提高了合金的耐电压强度和硬度 ,合金的电导率有所降低。真空感应熔炼法制备的 Cu Cr2 5合金达到了常规方法制备的 Cu Cr5 0的技术要求。更多还原

【Abstract】 The effects of additive Ni and Co on the microstructures and characteristics of CuCr25 alloys prepared by vacuum induction melting have been studied. The results show that both Ni and Co eliminate Cr segregation, and significantly improve the microstructures of CuCr25 alloys. The additive Ni and Co also increase the dielectric strength of the alloys, but slightly decrease electrical conductivity. As a result, the properties of vacuum induction melted CuCr25 alloys reach the specifications of conventional CuCr50 alloy.更多还原