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Journal of Materials Science

, Volume 51, Issue 24, pp 10943–10948 | Cite as

Asymmetric distribution of martensitic variants in non-modulated NiMnGa single crystals

  • R. Chulist
  • M. Faryna
  • M. J. Szczerba
Original Paper

Abstract

A strong asymmetric distribution of martensitic variants in non-modulated NiMnGa single crystals with respect to austenite is produced during martensitic transformation. A cubic-to-tetragonal transformation occurs with 24 possible variants divided into two groups. The first group with a misorientation of about 6° is composed of the so-called major variants separated by inter-plate boundaries, while the latter comprises minor variants with misorientation of 12.2°. The 6° rotation associated with major variants can also be observed at each inclination point where conjugation boundaries (CBs) occurs. The removal of CBs straightens out the inclined inter-plate boundaries confirming the Müllner–King mechanism.

Keywords

Austenite Martensite Martensitic Transformation Shape Memory Alloy Orientation Relationship 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The work was carried out within the Homing Plus Program (Project 2013-8/3) of Foundation for Polish Science, co-financed from European Union, Regional Development Fund. The financial support by the Ministry of Science and Higher Education of Poland within the Project No. 0063/IP2/2015/73 is also acknowledged.

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Institute of Metallurgy and Materials Science of Polish Academy of SciencesKrakówPoland

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