MARTENSITIC AND RELATED TRANSFORMATIONS IN NI-AL ALLOYS

The present paper gives a review of results of recent studies investig ating the fundamentals of the martensitic and related phase transforma tions in Ni-Al. For the former case, the emphasis will be on the micro structure of martensite plates. The latter include the metastable Ni2A l omega-like and stable Ni5Al3 bainitic phases. These phases will be d iscussed in view of their atomic structure, nucleation, growth and eff ect on the martensitic transformation. A separate chapter will deal wi th precursor effects.