Characterization of microscopic deformation in Cu-Al-Mn superelastic alloy by in situ Laue diffraction study using white X-ray microbeam

E. P. Kwon, S. Sato, S. Fujieda, K. Shinoda, K. Kajiwara, M. Sato, S. Suzuki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this study, in situ white X-ray microbeam diffraction experiments were conducted to investigate the microscopic deformation behavior of a Cu-Al-Mn superelastic alloy during tensile testing. Local deformation both at a grain scale and an intragranular scale was revealed by analyzing Laue spot streaking that occurred within a grain and in some grains with different orientations. The streaking measured within a grain under tensile load showed inhomogeneous behavior because of an inhomogeneous martensitic transformation. Moreover, the effect was dependent on grain orientation. In a grain with a high Schmid factor, a large dispersion in the 2θ diffraction angle of Laue spots was observed due to significant Laue spot streaking, which can be attributed to that grain's favored martensitic transformation.

Original languageEnglish
Pages (from-to)6-10
Number of pages5
JournalMaterials Science and Engineering A
Volume705
DOIs
Publication statusPublished - 2017 Sep 29

Keywords

  • Laue patterns
  • Martensitic transformation
  • Microscopic deformation
  • Superelastic alloy
  • White X-ray microbeam diffraction

ASJC Scopus subject areas

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

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