High-temperature oxidation of Ti-Al-Si alloys prepared by powder metallurgy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43919024" target="_blank" >RIV/60461373:22310/19:43919024 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0925838819331342?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838819331342?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2019.151895" target="_blank" >10.1016/j.jallcom.2019.151895</a>
Alternative languages
Result language
angličtina
Original language name
High-temperature oxidation of Ti-Al-Si alloys prepared by powder metallurgy
Original language description
The Ti-Al-Si alloys are promising materials for high-temperature use in automotive, aerospace or cosmic industry. The main advantages of these alloys are their low density (approximately 4 g/cm(3)), good oxidation resistance, and mechanical properties at elevated temperatures. Addition of silicon into the Ti-Al alloys improves the high-temperature behaviour and improves compactness and adhesion of the oxide layer. The resistance against oxidation can be effectively improved also by an appropriate technology of preparation. In this work, the high-temperature cyclic and isothermal oxidation resistance of the Ti-Al-Si alloys are described. The effect of powder metallurgy production route (reactive sintering, mechanical alloying, Spark Plasma Sintering) on high-temperature behaviour was compared. Cyclic and isothermal oxidation tests were carried out at 800 degrees C and 1000 degrees C, well above the air-operating limit for TiAl. It was confirmed, that the Ti-Al-Si alloys are resistant at temperature 800 degrees C, where only very thin oxide layer was formed. Mechanical alloying followed by Spark Plasma Sintering improved the high-temperature behaviour of these alloys, the oxide layer was even thinner. (C) 2019 Elsevier B.V. All rights reserved.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Alloys and Compounds
ISSN
0925-8388
e-ISSN
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Volume of the periodical
810
Issue of the periodical within the volume
august
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
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UT code for WoS article
000486596000061
EID of the result in the Scopus database
2-s2.0-85070971416