Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7880706 | Acta Materialia | 2015 | 6 Pages |
Abstract
X-ray microdiffraction and scanning electron microscopy studies reveal 10 M martensitic structure with a highly correlated multiscale twin hierarchy organization in NiMnGaFeCu shape memory alloys. High compatibility is found at the twin interfaces resulting in a highly correlated twinned lattice orientation across several laminate levels. The lattice unit cell is described as monoclinic I-centered with a = 4.28 Ã
, b = 4.27 Ã
, c = 5.40 Ã
, γ = 78.5°. The modulation is found parallel to the b axis. Thin tapered needle-like lamellae and branching are observed near the twin boundaries.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Rozaliya I. Barabash, Oleg M. Barabash, Dmitry Popov, Guoyin Shen, Changyong Park, Wenge Yang,