;z-l3-91 C (0 22 -/ NASA Technical Memorandum 103796 Prospects for Ductility and Toughness Enhancement of NiAI by Ductile Phase Reinforcement R.D. Noebe and F.J. Ritzert Lewis Research Center Cleveland, Ohio and A. Misra and R. Gibala The University of Michigan Ann Arbor, Michigan July 1991 NASA