Publication result detail

Can twinning stabilize B19' structure in NiTi martensite?

ŠESTÁK, P.; ČERNÝ, M.; POKLUDA, J.

Original Title

Can twinning stabilize B19' structure in NiTi martensite?

English Title

Can twinning stabilize B19' structure in NiTi martensite?

Type

WoS Article

Original Abstract

Although experimental observations determine the martensite structure of NiTi as monoclinic (B19'), abinitio calculations show that, after a full optimization of the lattice, the ideal martensite structure relaxes into orthorhombic B33 one. This paper presents a first principles investigation of the structure of (100) compound twins in martensite. The results obtained by means of two different computational codes show that the optimized structure of twin cells is very close to that of B19' martensite. This indicates that twinning can significantly contribute to mechanisms stabilizing the B19' structure in real martensite samples.

English abstract

Although experimental observations determine the martensite structure of NiTi as monoclinic (B19'), abinitio calculations show that, after a full optimization of the lattice, the ideal martensite structure relaxes into orthorhombic B33 one. This paper presents a first principles investigation of the structure of (100) compound twins in martensite. The results obtained by means of two different computational codes show that the optimized structure of twin cells is very close to that of B19' martensite. This indicates that twinning can significantly contribute to mechanisms stabilizing the B19' structure in real martensite samples.

Keywords

Intermetallics, Twinning, Martensitic structure, ab-initio calculations, Phase stability

Key words in English

Intermetallics, Twinning, Martensitic structure, ab-initio calculations, Phase stability

Authors

ŠESTÁK, P.; ČERNÝ, M.; POKLUDA, J.

RIV year

2012

Released

25.06.2011

Publisher

Elsevier

ISBN

0966-9795

Periodical

INTERMETALLICS

Volume

2011

Number

19

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1567

Pages to

1572

Pages count

6

BibTex

@article{BUT72885,
  author="Petr {Šesták} and Miroslav {Černý} and Jaroslav {Pokluda}",
  title="Can twinning stabilize B19' structure in NiTi martensite?",
  journal="INTERMETALLICS",
  year="2011",
  volume="2011",
  number="19",
  pages="1567--1572",
  issn="0966-9795"
}