Creep properties of Fe-Al based alloys with Zr and C addition

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F10%3A%230001610" target="_blank" >RIV/46747885:24210/10:#0001610 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Creep properties of Fe-Al based alloys with Zr and C addition
Original language description
The mechanical properties of samples taken from different parts of a 650 mm long steam turbine blade forged fromFe?25Al?2Ta(in at.%)by conventional forging on acounter blow hammer were examined. The hardness, brittle-to-ductile transition temperatures (BDTT), the yield stress in compression and in tension, and the creep behaviour were studied and compared with the same material in the as-cast and heat-treated state.Though forging apparently improves the mechanical properties they are still not optimal because of a too large grain size which stems from the insufficiently refined microstructure in the cast precursors. Because some distinct features were observed during creep testing, microstructures of crept samples were investigated by scanning electronmicroscopy (SEM) and transmission electron microscopy (TEM).These investigations revealed that the increased creep resistance below 700 oC is caused by crystallographically oriented sub-micron sized precipitates of a Heuslerphase.
Czech name
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Czech description
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
METAL 2010: 19TH INTERNATIONAL METALLURGICAL AND MATERIALS CONFERENCE
ISBN
978-80-87294-17-8
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
TANGER LTD
Place of publication
Ostrava
Event location
Roznov Pod Radhostem, CZECH REPUBLIC
Event date
Jan 1, 2010
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000286658700159

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