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3D defect structure of products in displacive phase transformations

Authors
Journal
Journal of Alloys and Compounds
0925-8388
Publisher
Elsevier
Publication Date
Volume
577
Identifiers
DOI: 10.1016/j.jallcom.2011.11.068
Keywords
  • Disconnections
  • Habit Planes
  • Product Morphologies
  • Stress-Concentrations
  • Accommodation Mechanisms
Disciplines
  • Mathematics

Abstract

Abstract The 3D structures of products embedded in their parent phases are described using the topological model. Various morphologies can be formed by arrangements of concentric disconnection loops in the interfaces and dislocation loops within the product. These morphologies can exhibit extended regions of the equilibrium habit plane, but stress concentrations arise elsewhere, such as at plate edges. Some mechanisms for accommodating these stress concentrations are outlined, and supporting experimental observations are cited.

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