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Grain structure and texture of cast iron aluminides
Author(s) -
Skrotzki W.,
Kegler K.,
Tamm R.,
Oertel C.G.
Publication year - 2005
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200410311
Subject(s) - equiaxed crystals , texture (cosmology) , materials science , supercooling , scanning electron microscope , grain size , metallurgy , grain boundary , diffraction , crystallography , microstructure , composite material , chemistry , optics , thermodynamics , physics , artificial intelligence , computer science , image (mathematics)
The grain structure and texture of cast iron aluminides have been investigated in the scanning electron microscope by orientation contrast imaging and electron back‐scatter diffraction, respectively. Depending on the aluminum concentration the alloys exhibit a fine‐grained chill zone, medium grain size columnar zone and/or coarse‐grained equiaxed zone. The texture is random except in the columnar zone which is characterized by a <100> fibre texture in the direction of heat flow, i.e parallel to the elongated grains. The development of grain structure and texture is discussed with respect to cooling rate, thermal and constitutional undercooling, and order. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)