Oxidation of Experimental Ti-Si-Al Based Alloys
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F17%3APU121342" target="_blank" >RIV/00216305:26620/17:PU121342 - isvavai.cz</a>
Result on the web
<a href="http://www.scientific.net/SSP.258.391" target="_blank" >http://www.scientific.net/SSP.258.391</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.258.391" target="_blank" >10.4028/www.scientific.net/SSP.258.391</a>
Alternative languages
Result language
angličtina
Original language name
Oxidation of Experimental Ti-Si-Al Based Alloys
Original language description
Despite the fact that conventional high temperature titanium alloys possess a good combination of low weight, high strength and good corrosion resistance, their operational temperatures do not exceed 540-600 °C, since at higher temperatures they suffer from extensive oxidation, scaling and formation of a brittle oxygen-reach diffusion layer on their surface, so-called apha-case’. The alloying with silicon was regarded as a promising way to raise the working temperatures of titanium alloys, since silicon is known to improve oxidation resistance, oxide scale adherence and high temperature creep behavior of titanium without noticeable deterioration of its ductility. The present paper was focused on studying of the oxidation kinetics and the formation of oxide scale and alpha-case layers on a series of experimental Ti-Al-Si based alloys, additionally alloyed with zirconium and tin. The oxidation kinetics of the experimental alloys upon exposure in air at 700 °С for up to 240 hours was examined and compared with that of commercially available Ті-6242 alloy. The oxide scale thickness, its phase composition and crystal morphology were characterized using X-ray diffraction and scanning electron microscopy (SEM), while the alphacase layer was analyzed using SEM and microhardness measurements. According to the experimental findings, the experimental Ti-Al-Si based alloys demonstrated a good potential for their use at high temperatures.
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/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Materials Structure & Micromechanics of Fracture VIII
ISBN
978-3-03835-626-4
ISSN
1012-0394
e-ISSN
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Number of pages
4
Pages from-to
391-394
Publisher name
Trans Tech Publications
Place of publication
Switzerland
Event location
Brno
Event date
Jun 26, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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