Cu-Ni合金中析出相的计算机模拟与试验验证  

Computer Simulation and Experimental Verification on Precipitation Phase in Cu-Ni Alloy

作　　者：刘东红[1] 牛军涛[2] 谢芳[3] 

机构地区：[1]河南质量工程职业学院经济与管理系,河南平顶山467000 [2]河南质量工程职业学院现代教育技术中心,河南平顶山467000 [3]河南职业技术学院材料系,河南郑州450046

出　　处：《铸造技术》2016年第6期1116-1119,共4页Foundry Technology

摘　　要：采用相场法模型,对Cu-Ni-Si合金时效过程中第二相的析出、粗化与长大过程进行了计算机模拟与试验验证。结果表明,Cu-Ni-Si合金中第二相的形状、含量的计算机模拟结果与试验结果较好地吻合;随着时效处理时间的增加,合金中第二相的含量不断增加,合金中第二相粒子逐渐从共格向半共格或者非共格转变;当时效时间为200 h,第二相形态也由花瓣状转变为圆盘形或者棒状。In the aging process of Cu-Ni-Si alloy, the computer simulation and experimental verification are carried out by using the phase field model. The results show that the computer simulation results and the experimental results of shape and content of the second phase in Cu-Ni-Si alloy are in good agreement. With the increase of aging time, the content of the second phase in the alloy increases, the particles in the alloy gradually transform from coherent to semi coherent or incoherent change. When the aging time to 200 h, the morphology of the second phase transforms from petaloid to a disc-shaped or clavate.

关 键 词：CU-NI-SI合金 计算机模拟 时效 第二相 

分 类 号：TG146.11[一般工业技术—材料科学与工程]