Measurement of elastic constants of monoclinic nickel-titanium and validation of first principles calculations

A. P. Stebner, D. W. Brown, L. C. Brinson

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Polycrystalline, monoclinic nickel-titanium specimens were subjected to tensile and compressive deformations while neutron diffraction spectra were recorded in situ. Using these data, orientation-specific and macroscopic Young's moduli are determined from analysis of linear-elastic deformation exhibited by 13 unique orientations of monoclinic lattices and their relationships to each macroscopic stress and strain. Five of 13 elastic compliance constants are also identified: s11 = 1.15, s15 = -1.10, s22 = 1.34, s33 = 1.06, s35 = -1.54, all × 10-2 GPa-1. Through these results, recent atomistic calculations of monoclinic nickel-titanium elastic constants are validated.

Original languageEnglish (US)
Article number211908
JournalApplied Physics Letters
Volume102
Issue number21
DOIs
StatePublished - May 27 2013

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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