Phase Equilibria of the Nickel-Aluminium-Chromium System at 1150°C

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Abstract:

Phase equilibria in the Ni-Al-Cr system at 1150°C were investigated by using annealed ternary alloys and diffusion couples. The phase constitutions, microstructures, and tie-lines were determined by conventional techniques, including X-ray diffraction, scanning electron microscopy and electron probe microanalysis. The solubility limits of Cr was found to be about 9at.% in the γ’ and 17at.% in the β phase. The size of second or third phase precipitates in the alloys was found to affect the determination of the tie-lines by the micro probe analysis.

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Materials Science Forum (Volumes 522-523)

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103-110

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August 2006

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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DOI: 10.1016/j.calphad.2015.12.007

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DOI: 10.1016/s1359-6462(97)00145-0

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