Chokshi, Atul H. ; Mukherjee, Amiyak (1988) The role of grain boundaries in the deformation and failure of a superplastic Al-Li alloy Proceedings of the Symposium: Interfacial structure, properties and design . pp. 413-418.
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Abstract
The large elongations associated with superplasticity are observed only in materials with fine grain sizes. An Al-Li alloy processed thermomechanically to develop a fine grain size exhibits superplastic characteristics and large elongations to failure of up to about 900 percent. Measurements at large elongations reveal that the grain boundary sliding contribution to superplastic deformation is about 75 percent. Microstructural inspection of superplastically deformed specimens reveals also the occurrence of extensive cavitation.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Proceedings of the Symposium: Interfacial structure, properties and design. |
| ID Code: | 84146 |
| Deposited On: | 24 Feb 2012 10:10 |
| Last Modified: | 24 Feb 2012 10:10 |
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