Acoustic Emission and Shape Memory Effect in the Martensitic Transformation

Abstract

Acoustic emission signals are known to exhibit a high degree of reproducibility in time and show correlations with the growth and shrinkage of martensite domains when athermal martensites are subjected to repeated thermal cycling in a restricted temperature range. We show that a recently introduced two dimensional model for the martensitic transformation mimics these features. We also show that these features are related to the shape-memory effect where near full reversal of morphological features are seen under these thermal cycling conditions.

4 pages, Revtex4

References in corpus (2)

• On the athermal character of structural phase transitions
• Power law statistics of avalanches in martensitic transformation

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