Formation of Hypereutectic Aluminium Alloy from Sacrificial Nickel Coating Investigated by Differential Thermal and Microstructural Analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU97114" target="_blank" >RIV/00216305:26210/11:PU97114 - 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

Formation of Hypereutectic Aluminium Alloy from Sacrificial Nickel Coating Investigated by Differential Thermal and Microstructural Analysis

Popis výsledku v původním jazyce

Nickel coating was sprayed from the 99,7 wt.% nickel powder by high velocity oxyfuel technique onto the 99.5 wt.% aluminium sheet surface. After the spraying was the samples annealed up to the temperature of 700, 800 and 1000oC. The heating rate of the samples of 5oC / min and cooling rate of 20oC/min was set up. Formation of binary hypereuectic aluminium alloy was investigated by using differential thermal analysis, metalography and scanning compare the results obtained. The microstructure of Al-Ni hypereutectic alloy is of aluminium matrix and Al3Ni eutectic. To estimate the chemical composition of phases the energy dispersive microanalysis was used. With increasing temperature the eutectic coarsen and the particles of primary Al3Ni phase is startedto be formed. The image analysis was applied to measure the resulting undissolved nickel coating thickness nad Al3Ni eutectic parameters.

Název v anglickém jazyce

Formation of Hypereutectic Aluminium Alloy from Sacrificial Nickel Coating Investigated by Differential Thermal and Microstructural Analysis

Popis výsledku anglicky

Nickel coating was sprayed from the 99,7 wt.% nickel powder by high velocity oxyfuel technique onto the 99.5 wt.% aluminium sheet surface. After the spraying was the samples annealed up to the temperature of 700, 800 and 1000oC. The heating rate of the samples of 5oC / min and cooling rate of 20oC/min was set up. Formation of binary hypereuectic aluminium alloy was investigated by using differential thermal analysis, metalography and scanning compare the results obtained. The microstructure of Al-Ni hypereutectic alloy is of aluminium matrix and Al3Ni eutectic. To estimate the chemical composition of phases the energy dispersive microanalysis was used. With increasing temperature the eutectic coarsen and the particles of primary Al3Ni phase is startedto be formed. The image analysis was applied to measure the resulting undissolved nickel coating thickness nad Al3Ni eutectic parameters.

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

2011

Kód důvěrnosti údajů

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