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Ultrasonic Vacuum Chill Casting and Hot Rolling of FeAl-based Alloys

Published online by Cambridge University Press:  28 August 2018

Vladimír Šíma ,
Přemysl Málek ,
Petr Kozelský ,
Ivo Schindler  and
Petr Hána
Vladimír Šíma
Affiliation:
Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic
Přemysl Málek
Affiliation:
Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic
Petr Kozelský
Affiliation:
Faculty of Metallurgy and Material Engineering, VŠB - Technical University of Ostrava, 17. listopadu 15, CZ-708 33 Ostrava-Poruba, Czech Republic
Ivo Schindler
Affiliation:
Faculty of Metallurgy and Material Engineering, VŠB - Technical University of Ostrava, 17. listopadu 15, CZ-708 33 Ostrava-Poruba, Czech Republic
Petr Hána
Affiliation:
Department of Physics, Technical University of Liberec, Studentská 2, CZ-461 17 Liberec, Czech Republic
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Abstract

An ultrasonic device was designed to fabricate relatively small vacuum chill castings of FeAl-based alloys with improved microstructure. A special hot-rolling procedure preventing thermal shocks was used for the thermomechanical treatment of cast alloys.

The efficiency of ultrasonic vacuum casting is manifested by improved microstructure of hot-rolled iron aluminides Fe – 40 at.% Al with addition of C or Zr and B or Zr and B with 1 wt.% of Y2O3 particles.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1128: Symposium U – Advanced Intermetallic-Based Alloys for Extreme Environment and Energy Applications , 2008 , 1128-U02-11
Copyright
Copyright © Materials Research Society 2009

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