Commercial brass, ~30% Zn, displaying dendritic solidification
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.
alloy, brass, copper, dendrite, metal, zinc, doitpoms, university of cambridge, micrograph, corematerials, ukoer, Engineering, H000
Publisher: University of Leeds
Sorry, we are unable to provide the full text but you may find it at the following location(s):
http://dspace.jorum.ac.uk/xmlu... (external link)