摘要
采用扫描电镜下原位拉伸的方法，观察了纯铝单晶中剪切带的形成过程。在此基础上揭示了晶体的滑移以及剪切带状分叉的主要特征。建议韧性金属材料中的剪切带可分为两类：一类为宏观剪切带（ＭＳＢ）；另一类为细观剪切带（ｍＳＢ）。
By means of tensile tests in situ with a scanning electron microscope the forrnation ofshear bands in single crystals of pure aluminum has been observed to elucidate the features ofthe crystal slip and the bifurcation. It is suggested that the shear bands in ductile metals canbe classified into two categories:the macroscopic shear bands(MSB)and the mesoscopicshear bands(mSB).
出处
《华中理工大学学报》
CSCD
北大核心
1995年第A01期30-33,共4页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金
关键词
剪切带
滑移
分叉
延性断裂
纯铝
shear bands
slip
bifurcation
ductile fracture
