Texture Development in Interstitial Free (IF) Steel Subjected to Two Cycles of Equal Channel Angular Extrusion
Texture development and grain refinement of interstitial-free (IF) steel as a function of ideal simple shear or torsion was undertaken for up to 8 pressings, Route BC. Dominant texture components evolved after a single pass and remained correspondent for all subsequent passes. End-cycle (4 and 8 pass) orientation distribution functions (ODFs) showed an increased spread of contour levels and the re-appearance of texture components similar to the 0-pass condition. Rotation of torsion components away from their ideal pole figure (PF) orientations increased at mid-cycle and decreased to almost equivalent levels after end-cycle passes. This is attributed to the principle slip directions of BCC structures aligning with the shear direction.
Paul Van Houtte and Leo Kestens
E. V. Pereloma et al., "Texture Development in Interstitial Free (IF) Steel Subjected to Two Cycles of Equal Channel Angular Extrusion ", Materials Science Forum, Vols. 495-497, pp. 809-814, 2005