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J. Phys. IV France
Volume 01, Numéro C4, Novembre 1991
EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES
Page(s) C4-199 - C4-210
DOI http://dx.doi.org/10.1051/jp4:1991430
EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES

J. Phys. IV France 01 (1991) C4-199-C4-210

DOI: 10.1051/jp4:1991430

ALLOYS OF IRON AND REVERSIBILITY OF MARTENSITIC TRANSFORMATIONS

E. HORNBOGEN and N. JOST

Institut für Weskstoffe, Ruhr-Universtität Bochum, Postfach 10, 21 48, D-4630 Bochum 1, Germany


Abstract
The origin of irreversibility, reversibility, course and completeness of martensitic transformations are discussed using the following alloys of iron as examples : 1. Irreversible transformation : Fe-C, Fe-Ni-C, maraging steel 2. Reversibility in homogeneous solid solutions : Fe-Ni, Fe-Ni-C, Fe-Mn 3. Reversibility due to order or coherent particles : Fe-Pt, Fe-Ni-X, Fe-Ni-Co-Ti 4. Effects of external stress and mechanical properties on Ms 5. Effects of external magnetic fields and magnetism/antiferromagnetism in austenite. The feasibility of shape memory steels is finally discussed.



© EDP Sciences 1991