采用硬度仪、X射线衍射仪及透射电镜等研究了分别含有θ″、θ′和θ析出相三种时效态铝铜合金在室温多向压缩(MAC)过程中硬度和显微组织的变化。结果表明: 随着压缩道次的增加, 三种时效态合金的硬度基本呈逐渐增加的趋势, 但含θ″、θ′相合金的硬度均有一个谷值; 多向压缩18道次后, 含θ″、θ′相合金获得等轴超细晶粒, 尺寸达到0.56～0.71 μm, 含θ相合金的为细长晶粒, 析出相θ不回溶。
所属栏目
湖南省科技攻关项目(2007FJ3085); 湖南省自然科学基金资助项目(05JJ40005)
收稿日期
2010/1/282010/12/30
作者单位
屈啸:中南大学材料科学与工程学院,长沙 410083
许晓嫦:中南大学材料科学与工程学院,长沙 410083
陈振湘:中南大学材料科学与工程学院,长沙 410083
张孜昭:中南大学材料科学与工程学院,长沙 410083
备注
屈啸(1986-), 男, 陕西汉中人, 硕士研究生。
引用该论文:
QU Xiao,XU Xiao-chang,CHEN Zhen-xiang,ZHANG Zi-zhao.Effect of Multi-axial Compression Deformation on Microstructure and Hardness of Aged Al-Cu Alloy[J].Materials for mechancial engineering,2011,35(3):64～67
屈啸,许晓嫦,陈振湘,张孜昭.多向压缩变形对时效态铝铜合金组织和硬度的影响[J].机械工程材料,2011,35(3):64～67
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