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2015 | 128 | 4 | 684-688
Article title

In Situ Neutron Diffraction Characterization of Phases in Co-Re-Based Alloys at High Temperatures

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EN
Abstracts
EN
Co-Re-based alloys strengthened by carbides are promising candidates for new high-temperature alloys for gas turbine applications. The high temperature microstructure and its stability are of utmost importance, e.g. due to strengthening-phase selection. Neutron scattering, providing in situ information at high temperatures, was extensively used in the past for the Co-Re alloys research. The paper focuses on TaC strengthened alloy, particularly on the stability TaC precipitates which were previously shown not to dissolve up to at least 1300°C. Small-angle neutron scattering shows that its finer morphological variant - most suitable for high temperature strengthening - coarsened even at relatively low temperature of 1000°C. This coarsening is faster at higher temperatures and the mean size exceeded 1000 Å (i.e. the size - detection limit of the used facility) after 4 h hold at 1200°C.
Keywords
EN
Publisher

Year
Volume
128
Issue
4
Pages
684-688
Physical description
Dates
published
2015-10
Contributors
author
  • Nuclear Physics Institute ASCR, Řež near Prague, CZ-25068, Czech Republic
author
  • TU Braunschweig, Institut für Werkstoffe, Braunschweig, Germany
author
  • TU München, Forschungs Neutronenquelle Heinz Maier-Leibnitz, Garching, Germany
author
  • Laboratory for Neutron Scattering, PSI, Villigen, Switzerland
author
  • Nuclear Physics Institute ASCR, Řež near Prague, CZ-25068, Czech Republic
author
  • Charles University in Prague, Department of Physics of Materials, Prague, Czech Republic
author
  • TU München, Forschungs Neutronenquelle Heinz Maier-Leibnitz, Garching, Germany
author
  • TU München, Forschungs Neutronenquelle Heinz Maier-Leibnitz, Garching, Germany
author
  • TU Braunschweig, Institut für Werkstoffe, Braunschweig, Germany
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv128n452kz
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