Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1575887 | Materials Science and Engineering: A | 2013 | 5 Pages |
Abstract
This work compares microstructural and strength properties of ultra-fine grained Al-2.5Mg alloy produced by multi-axial forging in a channel die at room and liquid nitrogen temperatures. The two ultra-fine grained microstructures after total equivalent strain of 2.3 exhibited similar grain sizes and orientation spread but significantly different respective strengths at room temperature. The difference in the strengths has been attributed to the higher dislocation densities in samples pressed at liquid nitrogen temperature. Dislocation densities were measured on the basis of average misorientations within grains measured using electron-back scattered diffractions.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
J.B. Singh, R. Kapoor, A. Durga Prasad, J.K. Chakravartty,