Effect of Nano-Scale Precipitates Growth on the Deformation Behavior of the Cast Coarse-Grained Al-Cu Alloy

In the present study, it is observed that the modified cast Al‐Cu alloy (coarse‐grained alloy) exhibits the following behavior, i.e., higher ductility at the lower strain rates. The nano‐scale precipitates growth phenomenon under the deformation process is mainly responsible for the enhanced ductili...

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Veröffentlicht in:	Advanced engineering materials 2008-12, Vol.10 (12), p.1114-1116
Hauptverfasser:	Zhao, W., Wang, H., Wang, J., Yao, D., Zhao, H., Jiang, Q.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum alloys Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Deformation and plasticity (including yield, ductility, and superplasticity) Exact sciences and technology Materials science Mechanical and acoustical properties of condensed matter Mechanical properties of solids Nanostructured metals Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Precipitation
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Beschreibung
Zusammenfassung:	In the present study, it is observed that the modified cast Al‐Cu alloy (coarse‐grained alloy) exhibits the following behavior, i.e., higher ductility at the lower strain rates. The nano‐scale precipitates growth phenomenon under the deformation process is mainly responsible for the enhanced ductility at the lower strain rates. Besides, the strain rate sensitivity is due to dislocation effect in the present alloy at the higher strain rates.
ISSN:	1438-1656 1527-2648
DOI:	10.1002/adem.200800150