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Commercial brass, ~30% Zn, displaying dendritic solidification

By University of Cambridge DoITPoMS and University of Leeds Department of Materials Dr R F Cochrane

Abstract

An good example of dendritic solidification, which occurs when the solidification front becomes unstable with respect to small perturbations. This results in the growth of the perturbations, producing dendrites (from the Greek for tree). The variation in colour across the micrograph indicates that the cooling was sufficiently rapid to prevent solid state diffusion and hence a concentration variation. This phenomenon is known as coring.

Topics: alloy, brass, copper, dendrite, metal, zinc, doitpoms, university of cambridge, micrograph, corematerials, ukoer, Engineering, H000
Publisher: University of Leeds
Year: 2010
OAI identifier: oai:dspace.jorum.ac.uk:10949/3903
Provided by: Jorum Open
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