Lorentz microscopy of some amorphous and annealed cobalt-based melt-spun alloys

The transmission electron microscope has been used to study the microstructural changes accompanying the crystallization of some near zero magnetostriction amorphous cobalt-based transition metal-metalloid alloys. The domain structure of the specimens was also monitored both in the initial state and as a function of the annealing treatment. The results obtained are compared with those obtained previously on highly magnetostrictive materials such as Fe-B alloys.