热轧Cu-Ni-Si合金冷轧后时效过程中的相变动力学

Dynamics of Phase Transformation of Hot-rolled Cu-Ni-Si Alloy During Aging After Cold Deformation

Cu Ni Si合金在时效过程中的导电率变化反映了合金中时效析出相的相变过程,因而通过测量时效过程中导电率的变化就可反映该合金时效析出转变的相变动力学方程,在此基础上,还可进一步求得时效时间和温度两个参数下的二元导电率方程。试验结果表明由该导电率方程所得的计算值能较好地与试验值相符,因此可以较准确的预测出某一工艺参数下可能达到的性能,以求达到减少试验次数和成本的目的,从而为该合金的生产工艺的制定提供参考依据。

The phase transformation of Cu-Ni-Si alloy was reflected by its change of electric conductivity during aging, so,through which the dynamic equation of the alloy's phase transformation can be gained and, furthermore,on the basis of which two component equation of electric conductivity can be also attained. As a result of experiment,the calculated values of electric conductivity were well consistent with those of experiment.Consequently,the properties of alloy under some processing parameters can be forecasted so as to reduce the times and costs of experiment,and references can be provided to production.