Publication detail

Creep in directionally solidified NiAl–Mo eutectics

DUDOVÁ, M. BARTÁK, T. DLOUHÝ, A.

Original Title

Creep in directionally solidified NiAl–Mo eutectics

Type

journal article - other

Language

English

Original Abstract

A directionally solidified NiAl–Mo eutectic and an NiAl intermetallic, having respective nominal compositions Ni–45.5Al–9Mo and Ni–45.2Al (at.%), were loaded in compression at 1073 and 1173 K. Formidable strengthening by regularly distributed Mo fibres (average diameter 600 nm, volume fraction 14%) was observed. The fibres can support compression stresses transferred from the plastically deforming matrix up to a critical stress of the order of 2.5 GPa, at which point they yield. Microstructural evidence is provided for the dislocation-mediated stress transfer from the NiAl to the Mo phase.

Keywords

High-temperature creep; NiAl–Mo eutectic; Mo fibres; Directional solidification; Transmission electron microscopy

Authors

DUDOVÁ, M.; BARTÁK, T.; DLOUHÝ, A.

RIV year

2011

Released

19. 10. 2011

ISBN

1359-6462

Periodical

SCRIPTA MATERIALIA

Year of study

2011

Number

8

State

United States of America

Pages from

699

Pages to

702

Pages count

4

BibTex

@article{BUT109816,
  author="DUDOVÁ, M. and BARTÁK, T. and DLOUHÝ, A.",
  title="Creep in directionally solidified NiAl–Mo eutectics",
  journal="SCRIPTA MATERIALIA",
  year="2011",
  volume="2011",
  number="8",
  pages="699--702",
  issn="1359-6462"
}