Martensitic transformation and texture in novel bcc Fe-Mn-Al-Ni-Cr alloys

Evolutions of martensitic transformation and texture during cold rolling in novel bcc Fe-Mn-Al-Ni-Cr alloys were studied. X-ray diffraction (XRD) and electron backscattering diffraction (EBSD) analyses revealed that this alloy undergoes a -> epsilon -> gamma' martensitic transformation during deformation. At a 20% cold rolling strain, most of the a phase transformed into gamma', and the transformed gamma' phase had a Kurdjumov-Sachs (K-S) relationship with the parent a phase. Strong {hkl}< 111 > and weak {110}< 001 > transformation textures were formed after deformation. This texture evolution appeared to be related to the variant selection that occurred during the martensitic transformation.