Effect of Cooling Rate on the Microstructure of Cu80Cr20 Alloys

Abstract:

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The effect of cooling rate on the microstructure of Cu80Cr20 alloys was studied by using vacuum non-consumable arc melting, vacuum induction melting, electromagnetic levitation and splat quenching. The microstructure evolution of the Cr-rich were analyzed by scanning electron microscopy (SEM) and optical microscopy. The results showed that nonuniform Cr-rich dendrite distributes on Cu-rich matrix for arc melted alloys and uniform Cr-rich dendrite distributes on Cu-rich matrix for electromagnetic levitation melted alloys and vacuum induction melted alloys. However, the Cr-rich phase show both dendrites and spheroids for splat quenched alloys. This means liquid phase separation occurred during rapid solidification.

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Periodical:

Edited by:

Ran Chen

Pages:

704-707

DOI:

10.4028/www.scientific.net/MSF.694.704

Citation:

Z.M. Zhou et al., "Effect of Cooling Rate on the Microstructure of Cu80Cr20 Alloys", Materials Science Forum, Vol. 694, pp. 704-707, 2011

Online since:

July 2011

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Price:

$35.00

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