Abstract The hexagonal metastable phase formed in an amophous Ni-P alloy during crystallization exhibits four different orientations. It is shown by SAD that they are four-fold rotation twins around . These four crystals have a common fcc sublattice and their twin relationship may be described by a rotation of 90o about one of the <100> axes of the sublattice.
GUO KE-XIN,WU YU-KUN,LIANG JIN-ZHONG et al. THE HEXAGONAL METASTABLE PHASE FORMED IN AN AMORPHOUS Ni-P ALLOY DURING CRYSTALLIZATION (II)——TWIN GROWTH RELATIONSHIP. Acta Phys. Sin., 1983, 32(7): 939-946.