Figure 3

(a) Schematic of specimen planes as referred to in the presented micrographs; (b,c) optical micrographs of the rolling plane; (d,e) optical micrographs of the transverse plane. In (b–e) α′ and γ phases provide dark and light contrasts, respectively. (f) EBSD inverse pole figure map of austenite in the transverse plane, showing crystal directions normal to the plane of view in color.