A micro-compression study of shape-memory deformation in U-13 at.% Nb

A.J. Clarke, R.D. Field, P.O. Dickerson, R.J. McCabe, J. Greg Swadener, R.E. Hackenberg

Research output: Contribution to journalArticlepeer-review

Abstract

Microcompression specimens, 10–15 µm in diameter by 20–30 µm in height, were produced from individual parent grains in a polycrystalline U–13 at.%Nb shape-memory alloy using the focused ion beam technique. The specimens were tested in a nanoindentation instrument with a flat diamond tip to investigate stress–strain behavior as a function of crystallographic orientation. The results are in qualitative agreement with a single-crystal accommodation strain (Bain strain) model of the shape-memory effect for this alloy.
Original languageEnglish
Pages (from-to)890-892
Number of pages3
JournalScripta Materialia
Volume60
Issue number10
DOIs
Publication statusPublished - May 2009

Keywords

  • shape memory alloys
  • microcompression testing
  • electron backscattering diffraction
  • transmission electron microscopy

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