Processing of Aluminium - based In-situ Composites Using HVOF Sprayed Nickel Coating

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F10%3APU88357" target="_blank" >RIV/00216305:26210/10:PU88357 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Processing of Aluminium - based In-situ Composites Using HVOF Sprayed Nickel Coating

Popis výsledku v původním jazyce

The aluminium matrix composites were prepared by HVOF spraying of nickel powder onto the aluminium sheet's surface followed by annealing in a range of temperatures 600 - 630oC (solid state), 640 - 660oC (semi-solid state) and above 660oC (liquid state ofaluminium). Layers containing the Al3Ni2 and Al3Ni intermediate phase compositions were created at the interface between the original coating sprayed and aluminium matrix. Moreover nickel diffuse into the aluminium matrix and produce strengthening by stable Al3Ni and metastable Al9Ni2 particles. The origin of continuous Al3Ni + Al eutectic band in aluminium matrix was observed at the temperatures higher than 650oC. The band thickness growth is dependent on a rate of aluminium liquid phase formation andcan be fully controlled by dwell time on annealing temperature. The microstructures were obtained by light microscope (Olympus GX-51) and scanning electron microscopes (JEOL 840-A, Philips XL30). Chemical composition was estimated by ene

Název v anglickém jazyce

Processing of Aluminium - based In-situ Composites Using HVOF Sprayed Nickel Coating

Popis výsledku anglicky

The aluminium matrix composites were prepared by HVOF spraying of nickel powder onto the aluminium sheet's surface followed by annealing in a range of temperatures 600 - 630oC (solid state), 640 - 660oC (semi-solid state) and above 660oC (liquid state ofaluminium). Layers containing the Al3Ni2 and Al3Ni intermediate phase compositions were created at the interface between the original coating sprayed and aluminium matrix. Moreover nickel diffuse into the aluminium matrix and produce strengthening by stable Al3Ni and metastable Al9Ni2 particles. The origin of continuous Al3Ni + Al eutectic band in aluminium matrix was observed at the temperatures higher than 650oC. The band thickness growth is dependent on a rate of aluminium liquid phase formation andcan be fully controlled by dwell time on annealing temperature. The microstructures were obtained by light microscope (Olympus GX-51) and scanning electron microscopes (JEOL 840-A, Philips XL30). Chemical composition was estimated by ene

Druh

O - Ostatní výsledky

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GP106%2F09%2FP513" target="_blank" >GP106/09/P513: Nekonvenční metody pro přípravu kompozitních materiálů sendvičového typu na bázi Al</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů