TEM characterization of twinning in Co39Ni33Al28 alloy

H. Y. Wang, K. Wang, Z. H. Liu, Y. G. Wang, G. H. Wu, X. F. Duan

Research output: Contribution to journalArticlepeer-review

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Abstract

A body-centered tetragonal (bet) twin martensite has been found in Co 39Ni33Al28 ferromagnetic shape memory alloy by transmission electron microscope (TEM) observation. The twin lamellae have ∑ = 25 (011̄) twin boundaries and slip system [011]//(011̄). Periodic appearance of the twin lamellae resulted in a modulated structure with a repeat periodicity of 56d011 perpendicular to the twin interface. The twinning mechanism during martensite transformation is discussed briefly.

Original languageEnglish (US)
Pages (from-to)2139-2142
Number of pages4
JournalMaterials Transactions
Volume48
Issue number8
DOIs
StatePublished - Aug 2007

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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