title: {225}γhabit planes in martensitic steels: from the PTMC to a continuous model.
abstract: Fine twinned microstructures with {225}γhabit planes are commonly observed in martensitic steels. The present study shows that an equibalanced combination of twin-related variants associated to the Kurdjumov-Sachs orientation relationship is equivalent to the Bowles and Mackenzie's version of the PTMC for this specific {225}γcase. The distortion associated to the Kurdjumov-Sachs orientation relationship results from a continuous modeling of the FCC-BCC transformation. Thus, for the first time, an atomic path can be associated to the PTMC.
authors.affiliation: Laboratory of Thermomechanical Metallurgy, PX Group Chair, Ecole Polytechnique Fédérale de Lausanne, 2002 Neuchâtel, Switzerland.
authors.forename: Annick P
authors.initials: AP
authors.lastname: Baur
authors.affiliation: Laboratory of Thermomechanical Metallurgy, PX Group Chair, Ecole Polytechnique Fédérale de Lausanne, 2002 Neuchâtel, Switzerland.
authors.forename: Cyril
authors.initials: C
authors.lastname: Cayron
authors.affiliation: Laboratory of Thermomechanical Metallurgy, PX Group Chair, Ecole Polytechnique Fédérale de Lausanne, 2002 Neuchâtel, Switzerland.
authors.forename: Roland E
authors.initials: RE
authors.lastname: Logé