Article ID Journal Published Year Pages File Type
1502462 Scripta Materialia 2008 4 Pages PDF
Abstract

The strain rate sensitivity of three steels with carbon contents ranging from 0.05 to 0.55 wt.% has been determined by nanoindentation and compression tests in the nanocrystalline and ultrafine-grained ranges. Samples were obtained by warm consolidation from milled powders. In the nanocrystalline range the steel with higher carbon content was found to be slightly rate sensitive, which means that the presence of carbon involves a change in the deformation mechanism of body-centered cubic iron, resulting in grain boundaries contributing to the plasticity.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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