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研究经冷加工和退火处理的过饱和Cu-2.65Ni-0.6Si和Cu-2.35Ni-0.6Si-0.6Cr合金。采用软件MAUD分析其显微组织参数的演变,包括晶粒尺寸、应变均方根和位错密度等。结果表明,经过冷加工和退火处理的两种合金的显微组织参数都具有特定值。在450℃时效2.5～3h的合金,其晶粒尺寸、应变均方根和位错密度等参数的净变化量与回复和再结晶过程相关。Cr作为第四组元添加到合金中没有明显改变形变和时效处理后合金的结构参数,因此也不影响合金的回复再结晶动力学。
Supersaturated Cu-2.65Ni-0.6Si and Cu-2.35Ni-0.6Si-0.6Cr alloys were treated by cold working and annealing. The software MAUD was used to analyze the evolution of microstructure parameters, including grain size, root mean square strain and dislocation density. The results show that the microstructural parameters of both alloys after cold working and annealing have specific values. At 450 ℃ for 2.5 ~ 3h, the net change of grain size, root mean square and dislocation density are related to the recovery and recrystallization process. The addition of Cr as the fourth component to the alloy did not significantly change the structural parameters of the alloy after deformation and aging treatment and therefore did not affect the recovery recrystallization kinetics of the alloy.