Publication result detail
Creep in directionally solidified NiAl–Mo eutectics
DUDOVÁ, M.; BARTÁK, T.; DLOUHÝ, A.
Original Title
Creep in directionally solidified NiAl–Mo eutectics
English Title
Creep in directionally solidified NiAl–Mo eutectics
Type
Peer-reviewed article not indexed in WoS or Scopus
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.
English 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
Key words in English
High-temperature creep; NiAl–Mo eutectic; Mo fibres; Directional solidification; Transmission electron microscopy
Authors
DUDOVÁ, M.; BARTÁK, T.; DLOUHÝ, A.
Released
19.10.2011
ISBN
1359-6462
Periodical
SCRIPTA MATERIALIA
Volume
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"
}