Microstructure in a copper-aluminium-nickel shape-memory alloy

Kevin F. Hane, Thomas W Shield

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Microstructures in a copper-aluminium-nickel shape-memory alloy are constructed using a geometrically nonlinear theory of martensitic transformations. All of the twins and habit planes are found, and a detailed comparison with experimental data is presented. Further, it is shown that twinned wedge microstructures with both type I and type II twins are possible in this alloy because its lattice parameters satisfy a special relation.

Original languageEnglish (US)
Pages (from-to)3901-3915
Number of pages15
JournalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Issue number1991
StatePublished - 1999


  • Copper-aluminium-nickel alloys
  • Deformation twinning
  • Martensitic transformations
  • Microstructure
  • Shape-memory alloys


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