摘要
为了优化Cu-Ni-Si合金的热处理工艺,采用相场法对Cu-Ni-Si铜合金热处理过程中Ni_(2)Si相的演变规律进行数学模拟,并与实验结果进行了对比验证。结果表明,随着热处理时间的延长,Ni_(2)Si相的等效直径r逐渐递增,等效直径r和新相转变分数f都与热处理时间t有较好的线性对应关系。实验结果表明,随着时效时间的延长,Cu-Ni-Si铜合金热处理过程中的Ni_(2)Si相转变比例逐渐增加,温度为450℃时,实验值与模拟值较好吻合,可采用相场模型对Cu-Ni-Si铜合金热处理过程中Ni_(2)Si相的析出进行预测。
In order to optimize the heat treatment process of Cu-Ni-Si alloy,the evolution of Ni_(2)Si phase in the heat treatment process of Cu-Ni-Si alloy was simulated using the phase-field method,and compared with the experimental results.The results show that the equivalent diameter r of Ni_(2)Si phase increases gradually with the extension of heat treatment time,and the equivalent diamete r r and the new phase transformation fraction f have a good linear relationship with the heat treatment time t.The experimental results show that with the prolongation of aging time,the Ni_(2)Si phase transformation ratio increases gradually at 450℃,and that the experimental values are in good agreement with the simulated values.The phase-field model can be used to predict the precipitation of Ni_(2)Si phase during the heat treatment of Cu-Ni-Si copper alloy.
作者
刘琳
LIU Lin(Public Teaching Department,Dalian University of Finance and Economics,Dalian 116023,China)
出处
《太原学院学报（自然科学版）》
2022年第4期33-37,共5页
Journal of TaiYuan University:Natural Science Edition
基金
2021年度辽宁省普通高等教育本科教学改革研究项目〔辽教办(2021)254号〕。
关键词
铜合金
热处理
析出相
数学模拟
copper alloy
heat treatment
precipitated phase
mathematical simulation
