Microstructure and texture evolution of ultra-thin TiNi hot-rolled sheets studied by automated EBSD

摘要

Electron backscattering diffraction (EBSD) investigations were carried out on three ultra-thin TiNi rolling sheet samples with thickness of 0,15. 0.2 and 0.3 mm, respectively. The microstructure and texture evolution were investigated as a function of the sheet thickness. The automated EBSD system allows integrating the grain boundaiy, grain size and the preferred orientation information to be revealed simultaneously. By ODF analysis, the preferred orientations are revealed as {111} <011>, {223} <021>, and {332} <110> in the three TiNi sheets. The {111} <011> component evolves stronger with reducing the thickness of the rolling sheet.