Alimadadi, Hossein1; da Silva Fanta, Alice Bastos1; Somers, Marcel A. J.4; Pantleon, Karen3
1 Center for Electron Nanoscopy, Technical University of Denmark2 Materials and Surface Engineering, Department of Mechanical Engineering, Technical University of Denmark3 Department of Mechanical Engineering, Technical University of Denmark4 Centre for oil and gas – DTU, Center, Technical University of Denmark
Complementary microscopic and diffraction based methods revealed a peculiar microstructure of electrodeposited nickel. For the as-deposited layer, thus, without any additional treatment, multiple twinning yields a high population of Σ3n boundaries, which interrupts the network of normal high angle grain boundaries. A peculiar arrangement of Σ3 boundaries forming five-fold junctions is observed. The resulting microstructure meets the requirements for grain boundary engineering. Twinning induced effects on the crystallographic orientation of grains result in one major texture component being a ⟨210⟩ fiber axis and additional minor orientations originating from first and second generation twins of ⟨210⟩, i.e., ⟨542⟩ and ⟨20 2 1⟩.