Influence of multiple electron-beam remeltings on the characteristics of HVOF and CGDS sprayed conicraly coatings
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU128143" target="_blank" >RIV/00216305:26210/18:PU128143 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.17222/mit.2017.092" target="_blank" >http://dx.doi.org/10.17222/mit.2017.092</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17222/mit.2017.092" target="_blank" >10.17222/mit.2017.092</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Influence of multiple electron-beam remeltings on the characteristics of HVOF and CGDS sprayed conicraly coatings
Popis výsledku v původním jazyce
Nanostructured CoNiCrAlY bond coatings were deposited onto a Ni-based alloy (Inconel 718) by both HVOF and CGDS spraying techniques. Subsequently, the deposits were remelted by an electron beam up to depth of about 100 μm, which resulted in the removal of defects on the substrate to the bond coat interface. This paper examines the influence of the parameters used for EB remelting, including multiple remelting on the microstructural changes, phase modification and the final state of the coatings. The amount of porosity in the coatings and the surface roughness has been evaluated. Scanning electron microscopy and X-ray diffraction were performed in order to characterize the phase modification before and after the applied treatment. The results indicated that multiple remelting improved the coating in terms of porosity, surface roughness decrease, mechanical strength and chemical homogeneity. This study also demonstrates that the CGDS deposition represents a promising alternative for CoNiCrAlY bond coat manufacturing.
Název v anglickém jazyce
Influence of multiple electron-beam remeltings on the characteristics of HVOF and CGDS sprayed conicraly coatings
Popis výsledku anglicky
Nanostructured CoNiCrAlY bond coatings were deposited onto a Ni-based alloy (Inconel 718) by both HVOF and CGDS spraying techniques. Subsequently, the deposits were remelted by an electron beam up to depth of about 100 μm, which resulted in the removal of defects on the substrate to the bond coat interface. This paper examines the influence of the parameters used for EB remelting, including multiple remelting on the microstructural changes, phase modification and the final state of the coatings. The amount of porosity in the coatings and the surface roughness has been evaluated. Scanning electron microscopy and X-ray diffraction were performed in order to characterize the phase modification before and after the applied treatment. The results indicated that multiple remelting improved the coating in terms of porosity, surface roughness decrease, mechanical strength and chemical homogeneity. This study also demonstrates that the CGDS deposition represents a promising alternative for CoNiCrAlY bond coat manufacturing.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20506 - Coating and films
Návaznosti výsledku
Projekt
<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Materiali in tehnologije
ISSN
1580-2949
e-ISSN
1580-3414
Svazek periodika
52
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
SI - Slovinská republika
Počet stran výsledku
5
Strana od-do
289-293
Kód UT WoS článku
000435102200007
EID výsledku v databázi Scopus
2-s2.0-85048334530