R. S. Mishra, Missouri University of Science and Technology, Rolla, MO; X. L. Shi, University of Missouri, Rolla, MO; T. J. Watson, Pratt & Whitney, East Hartford, CT
The Al-based alloys extruded after crystallization from amorphous state in Al-Y-Ni-X (where X = Fe or Co) systems are nanostructured and high volume fraction of intermetallic compounds. The tensile behavior was evaluated in the temperature range of 298-623 K. Very good combination of strength and ductility can be obtained in these nanostructured aluminum alloys. The influence of temperature on the transition of dislocation based deformation mechanism will be presented.
Summary: The Al-based alloys extruded after crystallization from amorphous state in Al-Y-Ni-X (where X = Fe or Co) systems are nanostructured and high volume fraction of intermetallic compounds. The tensile behavior was evaluated in the temperature range of 298-623 K. Very good combination of strength and ductility can be obtained in these nanostructured aluminum alloys. The influence of temperature on the transition of dislocation based deformation mechanism will be presented.
