The crystallographic relationship of molybdenum textures after hot rolling and recrystallization

• The texture of molybdenum sheet has been shown to be characterized by a set of stable orientations across its whole width.
• During the recrystallization process (001)[110] weakens, while {112}〈110〉, {111}〈112〉 and {111}〈110〉 enhance.
• The orientations of recrystallization and deformation are connected by turns at specific angles around the 〈110〉-axes.
• The formation of recrystallization texture is due to the migration of Σ9 CSL and/or the formation of nuclei at the Σ3, Σ11.

Using the method of orientation microscopy, based on electron backscatter diffraction (EBSD), the texture of molybdenum sheet, produced by hot rolling at 1100 °C with a total strain exceeding 90%, was characterized. Throughout its whole thickness, the molybdenum texture consisted of a set of stable orientations: (001)[110], {112}〈110〉, {111}〈112〉, {111}〈110〉. During recrystallization at 1200 °C {001}〈110〉 orientation became weaker, while the other orientations enhanced. The orientations of recrystallized grains were related with the orientations of deformed grains by rotations at defined angles around their axes 〈110〉. The formation of recrystallization texture can be explained by the migration of CSL boundaries of Σ9 type and/or the formation of recrystallization nuclei at the Σ3 and Σ11 CSL boundaries, which was preceded by the appearance of CSL misorientations between the components of deformed texture.

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