On the plasticity of small-scale nickel-titanium shape memory alloys

Carl P. Frick, Blythe G. Clark, Andreas S. Schneider, Robert Maaß, Steven Van Petegem, Helena Van Swygenhoven

Research output: Contribution to journalArticlepeer-review


Focused ion beam machined compression pillars created from [1 1 1], [0 0 1] and [2 1 0] NiTi demonstrate that orientation plays a dominant role in determining dislocation flow stress in stress-induced martensite. This is in contrast to bulk NiTi in which martensite strength is primarily dictated by precipitate size. Post-mortem transmission electron microscopy and Laue microdiffraction measurements reveal respectively dense dislocation structures and stabilized martensite consistent with bulk observations in heavily deformed NiTi.

Original languageEnglish (US)
Pages (from-to)492-495
Number of pages4
JournalScripta Materialia
Issue number7
StatePublished - Apr 1 2010
Externally publishedYes


  • Compression test
  • Micropillars
  • Plastic deformation
  • Shape memory alloys (SMA)
  • Transmission electron microscopy (TEM)

ASJC Scopus subject areas

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

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