Theory and Model for Martensitic Transformations

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  • Per-Anker Lindgård
  • Ole G. Mouritsen

Martensitic transformations are shown to be driven by the interplay between two fluctuating strain components. No soft mode is needed, but a central peak occurs representing the dynamics of strain clusters. A two-dimensional magnetic-analog model with the martensitic-transition symmetry is constructed and analyzed by computer simulation and by a theory which accounts for correlation effects. Dramatic precursor effects at the first-order transition are demonstrated. The model is also of relevance for surface reconstruction transitions.

Original languageEnglish
JournalPhysical Review Letters
Issue number19
Pages (from-to)2458-2461
Number of pages4
Publication statusPublished - 1986
Externally publishedYes

ID: 238391916