对经过连铸连轧处理的Cu—Nj—Si—Mg合金进行时效，研究了时效温度和时效时间对该合金组织和性能的影响，并对该合金在不同温度下的时效动力学进行了分析。结果表明：合金在450℃时效2h时能够获得较好的综合性能，其显微硬度和导电率分别为230HV和35％IACS；通过对合金在时效过程中导电率的变化规律的分析，推导出合金在不同温度下时效的相变动力学方程和导电率方程，在此基础上做出了动力学“S”曲线和导电率方程曲线，该导电率方程与试验值吻合。
Effects of aging temperature and aging time on microstructure and properties of a Cu-Ni-Si-Mg alloy which was produced by continuous casting and rolling process were investigated, and the aging kinetics of the alloy was analyzed. The results show that a better combination of properties is obtained for the alloy aged at 450 ℃ for 2 h, the microhardness and electrical conductivity of the alloy are 242 HV and 35.53% IACS, respectively. Both phase transformation kinetics equation and electrical conductivity equation are derived in terms of the analyses of the electrical conductivity variations during aging, and the transformation kinetics and the electrical conductivity equation curves are obtained. The results obtained by the electrical conductivity equations are in good agreement with the experimental values.
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