Nanostructure and properties of a Cu-Cr composite processed by severe plastic deformation

Details Nanostructure and properties of a Cu-Cr composite processed by severe plastic deformation Nanostructure and properties of a Cu-Cr composite processed by severe plastic deformation

2008-04-28

arxiv.org/abs/0804.4378v1

Scripta Materialia 58 (2008) 1125

Physics

Condensed Matter

Materials Science

Scientific paper

10.1016/j.scriptamat.2008.02.010

A Cu-Cr composite was processed by severe plastic deformation to investigate the role of interphase boundaries on the grain size reduction mechanisms. The as-deformed material exhibits a grain size of only 20nm. This gives rise to a dramatic increase of the hardness. Some deformation induced Cu super saturated solid solutions were clearly exhibited and it is shown that they decrease the hardness. The formation of such supersaturated solid solution and their influence on the mechanical properties are discussed.

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