Abstract
Development of microstructure and crystal orientation distribution in melt-spun and subsequently annealed Ni–36 at%Al and Ni–38 at%Al alloy ribbons was investigated. In Ni–36 at%Al ribbon, the martensitic transformation from β to β′ phase occurred during rapid cooling showing strong ⟨110⟩β′ fiber texture, while β phase with strong ⟨100⟩β texture was frozen in Ni–38 at%Al ribbon. During annealing at 1073 K, a peculiar fiber texture of strong ⟨100⟩β and ⟨110⟩γ′ texture was developed in Ni–36 at%Al ribbon. Formation of the texture was discussed focusing on the initial microstructure and the orientation relationship between phases during phase transformation.
