TY - JOUR
T1 - Characterization of microscopic deformation in Cu-Al-Mn superelastic alloy by in situ Laue diffraction study using white X-ray microbeam
AU - Kwon, E. P.
AU - Sato, S.
AU - Fujieda, Shun
AU - Shinoda, K.
AU - Kajiwara, K.
AU - Sato, M.
AU - Suzuki, S.
N1 - Funding Information:
This study was financially supported in part by research projects from the Korea Institute of Industrial Technology and the Grant-in-Aid for Scientific Research Fund of the Japan Society for the Promotion of Science ( JSPS ). Synchrotron radiation experiments were performed on the beamline BL28B2 at SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute.
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/9/29
Y1 - 2017/9/29
N2 - 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.
AB - 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.
KW - Laue patterns
KW - Martensitic transformation
KW - Microscopic deformation
KW - Superelastic alloy
KW - White X-ray microbeam diffraction
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U2 - 10.1016/j.msea.2017.08.064
DO - 10.1016/j.msea.2017.08.064
M3 - Article
AN - SCOPUS:85027704744
SN - 0921-5093
VL - 705
SP - 6
EP - 10
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
ER -