摘要
通过两因素三水平的正交设计实验和极端顶点的混料设计实验,研究了不同含量的Ti,B,RE对细晶铝锭的联合细化效果;并根据正交设计实验的方差分析和混料设计实验非线性方程的最小二乘法求解,寻求Ti,B,RE联合细化的最优工艺。结果表明:正交设计和混料设计得到的最优工艺基本一致,即Ti=0.01%,B=0.001%,RE=0.1%,Ti/B=10/1,Ti/RE=1/10,且Ti/B对细化效果影响显著,而Ti/RE的影响次之。为了验证最优组合的细化效果,将0.01%Ti+0.1%RE+0.001%B的细晶铝锭、0.01%Ti的细晶铝锭、0.01%Ti+0.3%RE的细晶铝锭和0.01%Ti的A l-5Ti-1B分别细化6063铝合金,发现0.01%Ti+0.1%RE+0.001%B的细晶铝锭的细化效果最好。
The combined refinement effects of grain-refined aluminum ingot(GRAI) with Ti,B and RE were investigated by the methods of the L6(32) orthogonal design and the extreme vertex mixing design.The optimization techniques of grain-refined aluminum ingot(GRAI) with Ti,B and RE were obtained according to the variance analysis parameters by influencing factor and least square method of the nonlinear equation.The results revealed that the optimization techniques were identical by methods of the orthogonal design and...
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2010年第6期812-816,共5页
Chinese Journal of Rare Metals
基金
河南省教育厅自然科学计划项目(2010A140014)
河南省教育厅自然科学计划项目(2010A140015)
河南省科技厅科技计划项目(092300410209)
河南省教育厅科技计划项目(2008A140010)资助
国家自然科学基金资助项目(61077073)
关键词
细晶铝锭
中间合金
正交设计
混料设计
晶粒细化
grain-refined aluminum ingot（GRAI）
master alloy
orthogonal design
mixing design
grain refinement
