Mechanical behavior of the directionally solidified. gamma. /. gamma. '--delta eutectic alloy. [Ni-20. 0 percent Nb-2. 5 percent Al-6. 0 percent Cr]
Conference
·
OSTI ID:7157050
The eutectic alloy Ni-20.0 percent Nb-2.5 percent Al-6.0 percent Cr was tested in short-term creep and long-term exposure to service conditions to assess its suitability for high temperature turbine blade applications. Long-time exposure showed the lamellar microstructure of the alloy to be exceptionally stable. Other properties tested were notch sensitivity, isothermal and thermomechanical fatigue strength, shear strength, and transverse ductility. It was shown that this alloy is superior to the best currently available directionally solidified superalloys over the temperature/stress conditions encountered in turbine airfoils.
- OSTI ID:
- 7157050
- Country of Publication:
- United States
- Language:
- English
Similar Records
Alloy and structural optimization of a directionally solidified lamellar eutectic alloy. [Ni--20% Nb--2. 5% Al--6% Cr]
Effect of growth conditions on the structure of directionally solidified. gamma. /. gamma. '-delta eutectic
Refinement of promising coating compositions for directionally cast eutectics. [Ni--19. 7Nb--6Cr--2. 5Al]
Technical Report
·
Sat May 01 00:00:00 EDT 1976
·
OSTI ID:7318479
Effect of growth conditions on the structure of directionally solidified. gamma. /. gamma. '-delta eutectic
Journal Article
·
Sat Sep 01 00:00:00 EDT 1979
· Metall. Trans., B; (United States)
·
OSTI ID:5796924
Refinement of promising coating compositions for directionally cast eutectics. [Ni--19. 7Nb--6Cr--2. 5Al]
Technical Report
·
Fri Oct 01 00:00:00 EDT 1976
·
OSTI ID:7098896