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Article
Stress-Assisted Removal of Conjugation Boundaries in Non-Modulated Ni–Mn–Ga by Coordinated Secondary Twinning
Journal of Materials Science
  • B. Muntifering, Boise State University
  • L. Kovarik, Pacific Northwest National Laboratory
  • N. D. Browning, Pacific Northwest National Laboratory
  • R. C. Pond, University of Exeter
  • W. B. Knowlton, Boise State University
  • P. Müllner, Boise State University
Document Type
Article
Publication Date
1-1-2016
Abstract
Observations are presented, obtained by in situ straining and conventional TEM, of a transformation mechanism by coordinated secondary twinning predicted by Mullner and King. The material studied is the martensitic phase of a non-modulated Ni–Mn–Ga alloy, which exhibits a microstructure comprising domains of lamellar matrix/twin composites. Straining these specimens induced lamellar domains to transform into their conjugate counterparts. In this process, secondary twinning generates a change of misorientation between the matrix and twin lamellae of the initial domain by nearly 23°. The orientation evolves over a region behind the transformation front about 100 nm in extent.
Citation Information
B. Muntifering, L. Kovarik, N. D. Browning, R. C. Pond, et al.. "Stress-Assisted Removal of Conjugation Boundaries in Non-Modulated Ni–Mn–Ga by Coordinated Secondary Twinning" Journal of Materials Science (2016)
Available at: http://works.bepress.com/william_knowlton/47/