Borides Precipitation in the FeAl40 Intermetallic Compound Produced by Atomization-Deposition Process

Abstract:

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The microstructure of FeAl40 intermetallic alloy produced by spray atomization and deposition, with boron additions and reinforced with Al2O3 particles was studied. This technique allowed the co-deposition of particulate reinforcement and the addition of boron in order to obtain a boron concentration of 0.4 at. %. The additions of alumina particles produce a grain refinement. High resolution transmission electron microscopy observations shows a precipitation of boron in the FeAl matrix in despite of the rapid solidification process. Fe3B precipitates were found which is a metastable phase formed during the rapid solidification process. In addition, FeB precipitates were observed.

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Periodical:

Edited by:

S. Velumani and René Asomoza

Pages:

96-100

DOI:

10.4028/www.scientific.net/AMR.68.96

Citation:

O. Flores et al., "Borides Precipitation in the FeAl40 Intermetallic Compound Produced by Atomization-Deposition Process", Advanced Materials Research, Vol. 68, pp. 96-100, 2009

Online since:

April 2009

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$35.00

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