Crystallography and morphology studies of Fe-Pt martensites: Lenticular to thin plate transition and thin plate morphologies
作者： M. Umemoto , C.M. Wayman
DOI: 10.1016/0001-6160(78)90063-9
关键词: Transformation kinetics 、 Morphology (linguistics) 、 Progressive change 、 Diffusionless transformation 、 Thermoelastic damping 、 Martensite 、 Materials science 、 Austenite 、 Crystallography 、 Nucleation
摘要: Abstract Ordering of austenitic Fe-Pt alloys near the composition Fe 3 Pt results in a progressive change from non-thermoelastic to thermoelastic martensitic transformation. Along with this transformation kinetics martensite morphology was investigated detail, using Fe-23, 24 and 25 at.% alloys. The found lenticular thin plate type depending mainly upon formation temperature, at early stages transition behavior. Thin exhibits wide range thermal hysteresis (from 150 20°C) only examined as crystallographic aspects, observed morphologies are explained terms combination fundamental pairs variants. As approaches condition, co-operative nucleation four variants group increases transformed region well organized pattern.
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