Development of Cold Sprayed Anti-oxidation Ti-doped Al Barriers On gamma-TiAl Substrates

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU101668" target="_blank" >RIV/00216305:26210/12:PU101668 - 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
Development of Cold Sprayed Anti-oxidation Ti-doped Al Barriers On gamma-TiAl Substrates
Original language description
Four blends of Al doped with various Ti content were prepared and their respective morphology and chemical compositions were specified. Protective layers of the blends designated for deliberate oxidation were then successfully cold-spray deposited onto near-gamma TiAl substrates at 300'C, while preserving their initial chemical composition and retaining its original mutual Al:Ti ratio. No oxidation of the materials during deposition was detected and the porosity of the produced coatings varied between 5.9-27.3%. Heat-treatment in argon atmosphere under various combinations of temperatures and dwell times was carried out in order to induce formation of intermetallic phases within the deposits and compact the layers. Following the treatment, the specimens were subjected to 950'C exposure for 100, 250 and 500hrs, respectively. It was found that the oxidation of the coatings-protected specimens was substantially reduced (an increase in oxide content 1.34 mg/cm2 after 500hrs vs. 1.21 mg/cm2
Czech name
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Czech description
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
New Methods of Damage and Failure Analysis of Structural Parts 10-14. 9. 2012 Ostrava
ISBN
978-80-248-2802-2
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
443-450
Publisher name
VŠB Ostrava
Place of publication
Neuveden
Event location
Ostrava
Event date
Sep 10, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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