| Cavity Evolution in Superplastic Aluminum-Based Alloys. (1998) | |||||||||
Abstract | |||||||||
| Cavity evolution in superplastic aluminum-based alloys have been studied. Specimens of Al-2.3Li-1.3Cu-0.8Mg-0.1Zr and Al-6%Cu-0.5Zr alloys were tensile tested at 788-813 K at constant cross-head displacement either to failure or to selected elongations. There are significant differences in the cavitation behavior in these two materials. Cavities in the Al-Li alloy develop in association with the initial banded structure and cracks propagate along the grain boundaries. Cavities in the Al-Cu-Zr alloy increase with increasing elongation and become less rounded. | |||||||||
Details der Publikation | |||||||||
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