On the sequence of inhomogeneous deformation processes occurring during tensile deformation of strip cast AA5754
On the sequence of inhomogeneous deformation processes occurring during tensile deformation of strip cast AA5754
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DOI：
10.1016/j.actamat.2005.08.045
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发表时间：
2006
期刊：
影响因子：
9.4
通讯作者：
Jidong Kang;D. Wilkinson;M. Jain;J. Embury;A. Beaudoin;Sooho Kim;R. Mishira;A. Sachdev
中科院分区：
文献类型：
--
作者：
Jidong Kang;D. Wilkinson;M. Jain;J. Embury;A. Beaudoin;Sooho Kim;R. Mishira;A. Sachdev
利用基于数字图像相关分析的全场应变映射、电子背散射衍射和原位场发射扫描电镜等多种表面观测技术，对AA5754拉伸试验过程中的非均匀流动规律进行了跟踪研究。观察结果允许滑移线、动态应变老化、剪切局部化、扩散和局部颈缩之间的关系。此外，还进行了断裂观察和损伤过程的金相评估，以便了解非均匀变形与延性之间的关系。
A variety of surface observational techniques including full-field strain mapping based on digital image correlation analysis, electron back-scatter diffraction and in situ field emission scanning electron microscopy have been used to follow the patterns of inhomogeneous flow which occur during tensile testing of AA5754. The observations permit the relationships between slip lines, dynamic strain aging, shear localization, diffuse and localized necking to be delineated. In addition, fracture observation and metallographic assessment of damage processes have been conducted to enable an understanding of the relationship between inhomogeneous deformation and ductility to be developed.