Influence of B2ordered structure on deformation texture①
(Department of Materials Science and Engineering,
University of Science and Technology Beijing, Beijing100083, P.R.China)
University of Science and Technology Beijing, Beijing100083, P.R.China)
Abstract: The formation of cold rolling textures in FeCo, CuZn and Fe3Al based alloys with B2 structure was analyzed using X-ray diffraction technology. The difference of deformation textures obviously demonstrated the different behaviors of plastic deformation in the alloys. The boundary energy of anti-phase domains has important influence on the crystallographic behaviors of B2 ordered alloys during deformation. The activation of slip systems on the {110} planes should be
the main deformation mechanism in B2 ordered alloys. The mechanical twinning on {112} planes appeared frequently in CuZn alloy with lower boundary energy of anti-phase domains, while a rather typical rolling texture like that in BCC metals was observed in Fe3Al alloy with incomplete B2 structure, indicating that its boundary energy of anti-phase domains does not have important influence on the deformation mechanism similar to BCC metals.
the main deformation mechanism in B2 ordered alloys. The mechanical twinning on {112} planes appeared frequently in CuZn alloy with lower boundary energy of anti-phase domains, while a rather typical rolling texture like that in BCC metals was observed in Fe3Al alloy with incomplete B2 structure, indicating that its boundary energy of anti-phase domains does not have important influence on the deformation mechanism similar to BCC metals.
Key words: ordering structure; boundary of anti-phase domain; deformation texture