Detail publikace

Nanotwinning and Modulation of Martensitic Structures in Ni2MnGa Alloy: An ab initio Study

ZELENÝ, M.

Anglický název

Nanotwinning and Modulation of Martensitic Structures in Ni2MnGa Alloy: An ab initio Study

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

The ab initio electronic structure calculations show importance of nanotwinning concept for understanding martensitic lattice geometry in Ni2MnGa magnetic shape memory alloys. All modulated martensitic structures, 4O, 10M and 14M, are stabilized due to the presence of nanotwin double layers in the structure, i.e., nanotwins consisting of two (101) lattice planes of nonmodulated martensitic structure. In all structures, the most significant decrease of total energy arises from a shift of Mn and Ga atoms at the nanotwin boundaries by about 1% of atomic coordinate.

Anglický abstrakt

The ab initio electronic structure calculations show importance of nanotwinning concept for understanding martensitic lattice geometry in Ni2MnGa magnetic shape memory alloys. All modulated martensitic structures, 4O, 10M and 14M, are stabilized due to the presence of nanotwin double layers in the structure, i.e., nanotwins consisting of two (101) lattice planes of nonmodulated martensitic structure. In all structures, the most significant decrease of total energy arises from a shift of Mn and Ga atoms at the nanotwin boundaries by about 1% of atomic coordinate.

Klíčová slova anglicky

magnetic shape memory alloys, martensite, ab initio

Vydáno

06.12.2018

ISSN

1898-794X

Ročník

134

Číslo

3

Strany od–do

658–661

Počet stran

4

BIBTEX


@article{BUT151623,
  author="Martin {Zelený},
  title="Nanotwinning and Modulation of Martensitic Structures in Ni2MnGa Alloy: An ab initio Study",
  year="2018",
  volume="134",
  number="3",
  month="December",
  pages="658--661",
  issn="1898-794X"
}