Intermediate temperature brittleness and directional coarsening behavior of nickel-based single-crystal superalloy DD6

2015 ◽  
Vol 86 ◽  
pp. 482-486 ◽  
Author(s):  
Xinhong Xiong ◽  
Pengdan Dai ◽  
Dunmiao Quan ◽  
Zhiping Wang ◽  
Qiaoxin Zhang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Intermediate Temperature ◽  
Single Crystal Superalloy ◽  
Directional Coarsening ◽  
Coarsening Behavior

Mechanical Behaviour of a Single Crystal Superalloy DD32 - A Comparison with the Alloy SRR99

2005 ◽  
Vol 475-479 ◽  
pp. 681-684 ◽  
Author(s):  
Jin Jiang Yu ◽  
Xiao Feng Sun ◽  
Tao Jin ◽  
Heng Rong Guan ◽  
Zhuang Qi Hu
Keyword(s):  
Single Crystal ◽  
Tensile Properties ◽  
Mechanical Behaviour ◽  
Fracture Mechanism ◽  
Stress Rupture ◽  
Single Crystal Superalloy ◽  
Directional Coarsening ◽  
Temperature Capability ◽  
Creep Temperature

Stress rupture and tensile properties of a single crystal superalloy DD32 are investigated comparing with the alloy SRR99. It is shown that the alloy DD32 offers an improved creep temperature capability of more than 60°C at higher stresses. The g¢ precipitates in the stress ruptured samples were rafted to P-N type directional coarsening. The fracture mechanism of the stress ruptured samples was initiated from the micropores.

Sign in / Sign up

Export Citation Format

Share Document