Journal article
Alloying effects on dislocation substructure evolution of aluminum alloys
International journal of plasticity, Vol.20(3), pp.459-476
03/2004
Handle:
https://hdl.handle.net/2376/110903
Abstract
The constitutive response of aluminum alloys is controlled by the evolution of dislocation substructure including mobile and forest dislocation density, cell size distribution and morphology, and misorientation angle between neighboring cells. The present study focuses upon the small strain regime and compares the measured microstructural evolution of 3003, 5005, and 6022 aluminum alloys during deformation. Room temperature tensile deformation experiments were performed on industrially manufactured specimens of each alloy and the evolving microstructure was compared with the mechanical response. The dislocation structure evolution was characterized using transmission electron microscopy and orientation imaging of deformed specimens. It was observed that structural evolution is a function of lattice orientation and the character of neighboring grains. In general, the dislocation cell size and misorientation angle between dislocation cells evolves systematically with deformation at relatively small strain levels.
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Details
- Title
- Alloying effects on dislocation substructure evolution of aluminum alloys
- Creators
- Pankaj Trivedi - School of Mechanical and Materials Engineering, PO Box 642920, Washington State University, Pullman, WA 99164-2920, USADavid P Field - School of Mechanical and Materials Engineering, PO Box 642920, Washington State University, Pullman, WA 99164-2920, USAHasso Weiland - Alcoa Technical Center, Alcoa Center, PA 15069-0001, USA
- Publication Details
- International journal of plasticity, Vol.20(3), pp.459-476
- Academic Unit
- Mechanical and Materials Engineering, School of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900547257201842
- Language
- English
- Resource Type
- Journal article