1210 Effect of γ/γ' Microstructure on High Temperature Fatigue Strength of Single Crystal Ni-base Superalloy

2005 ◽  
Vol 2005.18 (0) ◽  
pp. 265-266
Author(s):  
Motoki SAKAGUCHI ◽  
Masakazu OKAZAKI
Keyword(s):  
High Temperature ◽  
Fatigue Strength ◽  
Single Crystal ◽  
High Temperature Fatigue ◽  
Base Superalloy

Evaluation of Multicomponent Nickel Base LI2 and Other Intermetallic Alloys as High Temperature Structural Materials

1986 ◽  
Vol 81 ◽  
Author(s):  
D. M. Shah ◽  
D. N. Duhl
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Single Crystals ◽  
Impact Resistance ◽  
High Strength ◽  
Structural Materials ◽  
Nickel Base Superalloy ◽  
Intermetallic Alloys ◽  
Nickel Base ◽  
Base Superalloy

AbstractMulticomponent nickel base intermetallics with the L12 structure were evaluated as high temperature structural materials. The compounds were based on the γ' composition of PWA 1480, a high strength single crystal nickel base superalloy. The best balance of properties in the compound was achieved with <111> oriented single crystals but no significant advantage could be demonstrated over the precipitation hardened superalloys. Insufficient impact resistance was a major deficiency of the L12 compounds. Other nickel base intermetallics were also evaluated but showed little advantage over superalloys.

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