In situ neutron diffraction study of twin reorientation and pseudoplastic strain in Ni-Mn-Ga single crystals

A. Pramanick; K. An; A. D. Stoica; X. L. Wang

doi:10.1016/j.scriptamat.2011.06.022

Author(s)

A. Pramanick
K. An
A. D. Stoica
X. L. Wang

Detail(s)

Original language	English
Pages (from-to)	540-543
Journal / Publication	Scripta Materialia
Volume	65
Issue number	6
Publication status	Published - Sept 2011
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.scriptamat.2011.06.022 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-79960834028&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(bd82273c-fb9c-43cb-becb-6fa7bb1ba9d5).html

Abstract

Twin variant reorientation in single-crystal Ni-Mn-Ga during quasi-static mechanical compression was studied using in situ neutron diffraction. The volume fraction of reoriented twin variants for different stress amplitudes were obtained from the changes in integrated intensities of high-order neutron diffraction peaks. It is shown that, during compressive loading, ∼85% of the twins were reoriented parallel to the loading direction resulting in a maximum pseudoplastic strain of ∼5.5%, which is in agreement with measured macroscopic strain. © 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Research Area(s)

Heusler alloys, Magnetic shape memory alloys, Neutron diffraction, Transition metals, Twinning

Citation Format(s)

[ RIS ] [ BibTeX ]

In situ neutron diffraction study of twin reorientation and pseudoplastic strain in Ni-Mn-Ga single crystals. / Pramanick, A.; An, K.; Stoica, A. D. et al.
In: Scripta Materialia, Vol. 65, No. 6, 09.2011, p. 540-543.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Pramanick, A, An, K, Stoica, AD & Wang, XL 2011, 'In situ neutron diffraction study of twin reorientation and pseudoplastic strain in Ni-Mn-Ga single crystals', Scripta Materialia, vol. 65, no. 6, pp. 540-543. https://doi.org/10.1016/j.scriptamat.2011.06.022

Pramanick, A., An, K., Stoica, A. D., & Wang, X. L. (2011). In situ neutron diffraction study of twin reorientation and pseudoplastic strain in Ni-Mn-Ga single crystals. Scripta Materialia, 65(6), 540-543. https://doi.org/10.1016/j.scriptamat.2011.06.022

Pramanick A, An K, Stoica AD, Wang XL. In situ neutron diffraction study of twin reorientation and pseudoplastic strain in Ni-Mn-Ga single crystals. Scripta Materialia. 2011 Sept;65(6):540-543. doi: 10.1016/j.scriptamat.2011.06.022

Pramanick, A. ; An, K. ; Stoica, A. D. et al. / In situ neutron diffraction study of twin reorientation and pseudoplastic strain in Ni-Mn-Ga single crystals. In: Scripta Materialia. 2011 ; Vol. 65, No. 6. pp. 540-543.