Processing of top creep and oxidation resistant Fe-Al based ODS nalloys
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00566372" target="_blank" >RIV/68081723:_____/22:00566372 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.199" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2022.12.199</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.199" target="_blank" >10.1016/j.prostr.2022.12.199</a>
Alternative languages
Result language
angličtina
Original language name
Processing of top creep and oxidation resistant Fe-Al based ODS nalloys
Original language description
The Fe-Al based oxide dispersion strengthened (ODS) alloys are investigated since the 1960’s. The alloys are produced by nmechanical alloying of metal and Y2O3 powders followed by hot consolidation such as extrusion, rolling or rotary swaging. The noxides are dissolved during mechanical alloying in the matrix and they subsequently precipitate during the hot consolidation and nthermal treatment. The processing involves several parameters which need to be carefully optimized and controlled to produce a nsuccessful alloy with excellent creep properties. The presented systematic testing and microstructure studies are necessary to nidentify the values of the most important parameters. The coarse-grained ferritic Fe-10Al-4Cr-4Y2O3 oxide dispersion nstrengthened alloy exhibits top creep and oxidation resistance. Compared to commercial INCOLOY MA956 it involves twice nmore Al, ten times more Y2O3 precipitates and exhibits twice higher creep strength at 1100-1300 °C. Moreover, the creep rate is npractically immeasurable and the time to fracture reaches several thousands of hours at applied stresses of 60-70 % of the nultimate strength under the strain rate 10-6 s-1 in the order of 120 MPa at 1100 °C and 60 MPa at 1300 °C. The paper describes ndecisive processing steps and characterizes the most important microstructural and mechanical properties.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GX21-02203X" target="_blank" >GX21-02203X: Beyond properties of current top performance alloys</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Procedia Structural Integrity
ISBN
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ISSN
2452-3216
e-ISSN
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Number of pages
8
Pages from-to
1576-1583
Publisher name
Elsevier
Place of publication
Amsterdam
Event location
Funchal
Event date
Jun 27, 2022
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
001248864600202