Journal
SCRIPTA MATERIALIA
Volume 65, Issue 11, Pages 942-945Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2011.08.010
Keywords
Nanoindentation; Atomic force microscopy; Shape memory alloys; Martensitic phase transformation; High-manganese steel
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Funding
- JST, CREST
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Nanoindentation was conducted to investigate the stress-induced epsilon-martensitic transformation behavior and the shape memory effect in a Fe-28Mn-6Si-5Cr alloy. The shape memory effect was evaluated from the volume change in an indent mark caused by annealing measured by atomic force microscopy. Using the load-displacement (P-h) data obtained from nanoindentation, the plot of P/h vs. h showed two types of slopes, corresponding to the epsilon-martensitic transformation and slip deformation, and exhibited a correlation with the shape recovery ratio. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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