DEFORMATION-BEHAVIOR OF PEROVSKITE-TYPE PHASES IN THE SYSTEM FE-NI-AL-C .1. STRENGTH AND DUCTILITY OF NI3ALCX AND FE3ALCX ALLOYS WITH VARIOUS MICROSTRUCTURES
W. Sanders et G. Sauthoff, DEFORMATION-BEHAVIOR OF PEROVSKITE-TYPE PHASES IN THE SYSTEM FE-NI-AL-C .1. STRENGTH AND DUCTILITY OF NI3ALCX AND FE3ALCX ALLOYS WITH VARIOUS MICROSTRUCTURES, Intermetallics, 5(5), 1997, pp. 361-375
Some Fe3AlCx and Ni3AlCx alloys with various microstructures were test
ed with respect to strength and ductility between room temperature and
1200 degrees C. The studied Ni3AlCx(+Mn,Fe) alloys show the perovskit
e-type structure (L'1(2)) with up to 2.5 at% carbon and are single pha
se. The Fe3AlCx alloys show the same perovskite-type structure, which
is stable in this case only for carbon contents exceeding 11 at%. Thes
e alloys contain precipitates of graphite or alpha-FeAl (B2). All allo
ys were studied by compression tests with constant deformation rate or
constant load. Additionally, some hot-hardness tests were carried out
. Ductility was characterized by 4-point-bending tests. The properties
of Fe3AlCx and Ni3AlCx alloys are compared to each other and to those
of Ni3Al. (C) 1997 Elsevier Science Limited.