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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Processing of Aluminium - based In-situ Composites Using HVOF Sprayed Nickel Coating
Original language description
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
Czech name
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Czech description
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Project
<a href="/en/project/GP106%2F09%2FP513" target="_blank" >GP106/09/P513: Unconventional methods for preparation of Al matrix composites strengthened by Al-Ni phases</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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