Publication detail

Highly mobile twin boundaries in seven-layer modulated Ni-Mn-Ga-Fe martensite

SOZINOV, A. MUSIIENKO, D. SAREN, A. VEŘTÁT, P. STRAKA, L. HECZKO, O. ZELENÝ, M. CHULIST, R. ULLAKKO, K.

Original Title

Highly mobile twin boundaries in seven-layer modulated Ni-Mn-Ga-Fe martensite

Type

journal article in Web of Science

Language

English

Original Abstract

We report on low twinning stress of 0.2 MPa for type 1 twin boundaries with rational (101) twinning plane and 0.1 MPa for type 2 twin boundaries with rational [(1) over bar 01] twinning direction, in Ni2MnGa0.8Fe0.2 seven-layer modulated martensite exhibiting about 12% stress-induced strain. The studied samples were free of compound twins with (100) and (110) twinning planes. The martensite lattice is monoclinic and shows a long-period commensurate modulation with wave vector q=(2/7)g(110), where g(110) is the reciprocal lattice vector. The investigated alloy has high potential for practical applications due to the low twinning stress and the elevated Curie point T-C=400 K. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd.

Keywords

Magnetic shape memory; Martensite; Twin boundary; Ni-Mn-Ga; Heusler alloy

Authors

SOZINOV, A.; MUSIIENKO, D.; SAREN, A.; VEŘTÁT, P.; STRAKA, L.; HECZKO, O.; ZELENÝ, M.; CHULIST, R.; ULLAKKO, K.;

Released

15. 3. 2020

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

Location

OXFORD

ISBN

1359-6462

Periodical

SCRIPTA MATERIALIA

Year of study

178

Number

1

State

United States of America

Pages from

62

Pages to

66

Pages count

5

URL

https://www.sciencedirect.com/science/article/pii/S1359646219306359

Full text in the Digital Library

http://hdl.handle.net/11012/187013

BibTex

@article{BUT162376,
  author="Alexei {Sozinov} and Denys {Musiienko} and Andrey {Saren} and Petr {Veřtát} and Ladislav {Straka} and Oleg {Heczko} and Martin {Zelený} and Robert {Chulist} and Kari {UIllakko}",
  title="Highly mobile twin boundaries in seven-layer modulated Ni-Mn-Ga-Fe martensite",
  journal="SCRIPTA MATERIALIA",
  year="2020",
  volume="178",
  number="1",
  pages="62--66",
  doi="10.1016/j.scriptamat.2019.10.042",
  issn="1359-6462",
  url="https://www.sciencedirect.com/science/article/pii/S1359646219306359"
}