Microstructure of In Situ Reaction TiB2/Zn-30Al-1Cu Composites Prepared by Spray Deposition Process

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Abstract:

An innovative spray deposition technique has been applied to produce in situ TiB2/Zn-30Al-1Cu composites. The microstructures of the spray-deposited composite were studied using optical microscopy, scanning electron microscopy, and X-ray diffraction. Both theoretical and experimental results have shown that the TiB2 particulates are formed in the microstructure. It was found that the TiB2 particles were distributed in Zn-30Al-1Cu matrix uniformly, and the TiB2 particles are about 2 μm in size. Moreover, the presence of the TiB2 particles was led to increasing of α’ phase with less 2 μm size in the composites which have a tendency to decompose to α+η structure.

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Advanced Materials Research (Volumes 1120-1121)

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572-575

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July 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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