Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499167 | Scripta Materialia | 2013 | 4 Pages |
Abstract
Graphene layers (graphite) were deposited on the surface of a NiTi shape memory alloy to enhance the deformation and nanoscale phase transition volume. One highly polished NiTi and one with the graphite deposit were examined. The graphite-coated NiTi showed deeper nanoindentation depths during the solid-state phase transition, especially in rate-dependent zones. Larger superelastic deformation confirmed that nanoscale latent heat transfer through the deposited graphite allowed a larger phase transformed volume in the bulk and, therefore, greater stress relaxation and a greater indentation depth.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Abbas Amini, Nishar Hameed, Jeffrey S. Church, Chun Cheng, Alireza Asgari, Frank Will,