Publication detail

The Elastic Constants of Austenitic and Martensitic Phases of NiTi Shape Memory Alloy

ŠESTÁK, P. ČERNÝ, M. POKLUDA, J.

Czech title

Elastické konstanty austenitické a martensitické fáze materiálů s tvarovou pamětí NiTi

English title

The Elastic Constants of Austenitic and Martensitic Phases of NiTi Shape Memory Alloy

Type

journal article - other

Language

en

Original abstract

The elastic constants of NiTi shape memory alloy are studied using first principles calculations. All non-zero elastic constants were computed for austenitic B2 (space group Pm3m), martensitic B19' (space group P21/m) and base centered orthorhombic phase BCO (space group Cmcm) structures. The computed elastic constants were compared with available experimental data. The published results complement and extend the elastic constants dataset for selected structures of NiTi shape memory alloy. Results also confirmed, that the predicted structure with the lowest total energy has base centered orthorombic symmetry which is in correspondence with conclusion of previously published first principles calculations.

Czech abstract

The elastic constants of NiTi shape memory alloy are studied using first principles calculations. All non-zero elastic constants were computed for austenitic B2 (space group Pm3m), martensitic B19' (space group P21/m) and base centered orthorhombic phase BCO (space group Cmcm) structures. The computed elastic constants were compared with available experimental data. The published results complement and extend the elastic constants dataset for selected structures of NiTi shape memory alloy. Results also confirmed, that the predicted structure with the lowest total energy has base centered orthorombic symmetry which is in correspondence with conclusion of previously published first principles calculations.

English abstract

The elastic constants of NiTi shape memory alloy are studied using first principles calculations. All non-zero elastic constants were computed for austenitic B2 (space group Pm3m), martensitic B19' (space group P21/m) and base centered orthorhombic phase BCO (space group Cmcm) structures. The computed elastic constants were compared with available experimental data. The published results complement and extend the elastic constants dataset for selected structures of NiTi shape memory alloy. Results also confirmed, that the predicted structure with the lowest total energy has base centered orthorombic symmetry which is in correspondence with conclusion of previously published first principles calculations.

Keywords in Czech

Elastické konstanty, austenitická a martensitická fáze, materiálz s tvarovou pamětí, NiTi

Keywords in English

Elastic Constants, Austenitic and Martensitic Phase, NiTi, Shape Memory Alloy

RIV year

2008

Released

01.08.2008

Publisher

Materiálovotechnologická fakulta STU so sídlom v Trnave

ISSN

1335-9053

Volume

8

Number

4

Pages from–to

120–124

Pages count

5

BIBTEX


@article{BUT47423,
  author="Petr {Šesták} and Miroslav {Černý} and Jaroslav {Pokluda},
  title="The Elastic Constants of Austenitic and Martensitic Phases of NiTi Shape Memory Alloy",
  year="2008",
  volume="8",
  number="4",
  month="August",
  pages="120--124",
  publisher="Materiálovotechnologická fakulta STU so sídlom v Trnave",
  issn="1335-9053"
}