Low temperature deformation kinetics of ruthenium aluminide alloys
Conference
·
OSTI ID:20001634
The kinetics of low temperature deformation were investigated in several different polycrystalline RuAl alloys with the use of strain rate change experiments at 77 K and 298 K. Compositions investigated include RuAl, RuAl+0.5%B, Ru{sub 51.5}Al{sub 48.5}, Ru{sub 52}Al{sub 48}, Ru{sub 53}Al{sub 47}+0.5%B. Ru{sub 54.5}Al{sub 45.5}, and Ru{sub 52}Al{sub 43}Sc{sub 5}. Flow stresses did not vary substantially with temperature between 77 K and 298 K. Rate sensitivities were low compared to other B2 compounds and similar in all compositions investigated. Analyses of dislocation substructures after low strain deformation were conducted. The deformation kinetics and substructural observations suggest a higher intrinsic deformability for RuAl alloys with respect to the other high temperature B2 aluminides.
- Research Organization:
- Carnegie Mellon Univ., Pittsburgh, PA (US)
- Sponsoring Organization:
- US Department of Energy
- OSTI ID:
- 20001634
- Report Number(s):
- CONF-981104--; ISBN 1-55899-458-0; ISSN 1067-9995
- Country of Publication:
- United States
- Language:
- English
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