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Condensed Matter > Materials Science

arXiv:2309.02039 (cond-mat)
[Submitted on 5 Sep 2023]

Title:Energy and morphology of martensite-twinned martensite interface in CuAlNi shape memory alloy: a phase-field study

Authors:Seyedshoja Amini, Mohsen Rezaee-Hajidehi, Stanislaw Stupkiewicz
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Abstract:Needle-like twins are observed experimentally within the transition layer at the martensite-twinned martensite interface. We utilize a phase-field approach to investigate this microstructure. Our goal is to simulate the morphology of the transition layer and to perform a detailed analysis to characterize its interfacial and elastic micro-strain energy. To illustrate the micromechanical framework developed for that purpose, sample computations are carried out for a CuAlNi shape memory alloy undergoing the cubic-to-orthorhombic martensitic transformation. A particular focus of the study is on size-dependent morphology through examining the impact of twin spacing. Additionally, our results reveal that certain twin volume fractions lead to the emergence of twin branching, as a way to minimize the total free energy stored in the microstructure.
Subjects: Materials Science (cond-mat.mtrl-sci)
Cite as: arXiv:2309.02039 [cond-mat.mtrl-sci]
  (or arXiv:2309.02039v1 [cond-mat.mtrl-sci] for this version)
  https://doi.org/10.48550/arXiv.2309.02039
Journal reference: Comput. Mater. Sci. 230 (2023), 112472
Related DOI: https://doi.org/10.1016/j.commatsci.2023.112472

Submission history

From: Stanislaw Stupkiewicz [view email]
[v1] Tue, 5 Sep 2023 08:31:07 UTC (7,180 KB)
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