Grain Refinement in an Al-Zn-Mg-Cu Casting Ingot

Abstract:

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The grain refinement in a high specific strength Al-Zn-Mg-Cu casting ingot was studied by add different amount of Al-Ti-C and Al-Ti-B master alloys during casting. The optical microscopy observation shows that the grain size of ingot is greatly reduced when adding Al-Ti-B as low as 0.01 wt%. Both the average size and the size difference among samples from various locations of ingots are smaller when the alloy casted with Al-Ti-B, which indicates that Al-Ti-B is effecient for the grain refinement in the Al-Zn-Mg-Cu casting ingot.

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Periodical:

Edited by:

Qing Liu, Jian-Feng Nie, Robert Sanders, Zhihong Jia and Lingfei Cao

Pages:

104-108

DOI:

10.4028/www.scientific.net/MSF.877.104

Citation:

X. D. Wu et al., "Grain Refinement in an Al-Zn-Mg-Cu Casting Ingot", Materials Science Forum, Vol. 877, pp. 104-108, 2017

Online since:

November 2016

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$35.00

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