Equal-Channel Angular Pressing of NiAl
Equal-channel angular pressing (ECAP) was applied to polycrystalline NiAl at temperatures around the brittle-to-ductile transition temperature (BDTT). NiAl rods encapsulated in a steel jacket were ECAP-processed in a die with a channel angle of 120°. The microstructure and texture were characterized by electron backscatter diffraction with a scanning electron microscope. The volume fraction of the texture components typical for simple shear in the intersection plane of the channels changes in the range of the BDTT.
Jing Tao Wang, Roberto B. Figueiredo and Terence G. Langdon
W. Skrotzki et al., "Equal-Channel Angular Pressing of NiAl", Materials Science Forum, Vols. 667-669, pp. 39-44, 2011