Matrix Channel Width Evolution of Single Crystal Superalloy Under Creep and Thermal Mechanical Fatigue

2021 ◽  
Author(s):  
Zixu Guo ◽  
Ziyuan Song ◽  
Dawei Huang ◽  
Xiaojun Yan
Keyword(s):  
Single Crystal ◽  
Channel Width ◽  
Single Crystal Superalloy ◽  
Matrix Channel ◽  
Thermal Mechanical Fatigue ◽  
Mechanical Fatigue

Thermal–mechanical fatigue behaviour of a new single crystal superalloy: Effects of Si and Re alloying

2015 ◽  
Vol 95 ◽  
pp. 456-467 ◽  
Author(s):  
Mikael Segersäll ◽  
Paraskevas Kontis ◽  
Stella Pedrazzini ◽  
Paul A.J. Bagot ◽  
Michael P. Moody ◽  
...  
Keyword(s):  
Single Crystal ◽  
Fatigue Behaviour ◽  
Single Crystal Superalloy ◽  
Thermal Mechanical Fatigue ◽  
Mechanical Fatigue

Deformation and damage mechanisms during thermal–mechanical fatigue of a single-crystal superalloy

2009 ◽  
Vol 57 (7) ◽  
pp. 2266-2276 ◽  
Author(s):  
Johan J. Moverare ◽  
Sten Johansson ◽  
Roger C. Reed
Keyword(s):  
Single Crystal ◽  
Single Crystal Superalloy ◽  
Damage Mechanisms ◽  
Thermal Mechanical Fatigue ◽  
Mechanical Fatigue

Microstructure Evolution of a Single Crystal Superalloy after Tensile Fracture at Different Temperature

2013 ◽  
Vol 721 ◽  
pp. 262-265
Author(s):  
Zhen Xue Shi ◽  
Shi Zhong Liu ◽  
J. Yu ◽  
M. Han ◽  
J.R. Li
Keyword(s):  
Single Crystal ◽  
Microstructure Evolution ◽  
Stacking Faults ◽  
Single Crystal Superalloy ◽  
Tensile Fracture ◽  
Matrix Channel ◽  
Stress Orientation ◽  
Transmission Electron ◽  
Strength Behavior ◽  
The Matrix

The tensile property tests of DD6 single crystal superalloy were performed at 25°C, 760°C and 980°C in air. Detailed microstructure evolution was carried out on the alloy to illuminate the γ phase and dislocation structure after tensile fracture by scanning electron microscope and transmission electron microscopy. The results show that the alloy has the maximum tensile strength and the minimum plasticity at 760°C. DD6 alloy has the same anomalous yield strength behavior with other single crystal superalloys. The γ phase hasve a little extension in the stress orientation after tensile fracture at 25°C. The γ phase morphology still maintains cubic after tensile fracture at 760°C. The γ phase is no longer cubic and changes into rectangular solid in the specimen tensile ruptured at 980°C. The vertical γ matrix becomes thinner and horizontal γ matrix becomes thicker slightly. The γ phase is no longer cubic and changes into rectangular solid. High density dislocations are present in the matrix channels and a lot of superlattice stacking faults are seen within γ phases in the sample tested at 25°C. A large quantities of superlattice stacking faults within γ phase and a lot of dislocations tangling in matrix channel are all present in the sample tested at 760°C. The dislocation networks have homogeneously formed at γ/γ interface in the sample tested at 980°C.

scholarly journals Deformation behavior during thermo-mechanical fatigue of a nickel-based single crystal superalloy

2011 ◽  
Vol 10 ◽  
pp. 281-286 ◽  
Author(s):  
H.U. Hong ◽  
B.G. Choi ◽  
I.S. Kim ◽  
Y.S. Yoo ◽  
C.Y. Jo
Keyword(s):  
Single Crystal ◽  
Deformation Behavior ◽  
Single Crystal Superalloy ◽  
Mechanical Fatigue

scholarly journals Prediction of Thermal Mechanical Fatigue Properties of Ni-Base Single Crystal Superalloys

2006 ◽  
Vol 70 (3) ◽  
pp. 246-249
Author(s):  
Hirofumi Ohata ◽  
Tadaharu Yokokawa ◽  
Toshiharu Kobayashi ◽  
Yoshikazu Ro ◽  
Hiroshi Harada
Keyword(s):  
Single Crystal ◽  
Fatigue Properties ◽  
Thermal Mechanical Fatigue ◽  
Mechanical Fatigue

scholarly journals In-phase thermal–mechanical fatigue investigation on hollow single crystal turbine blades

2013 ◽  
Vol 26 (6) ◽  
pp. 1409-1414 ◽  
Author(s):  
Rongqiao Wang ◽  
Fulei Jing ◽  
Dianyin Hu
Keyword(s):  
Single Crystal ◽  
Turbine Blades ◽  
Thermal Mechanical Fatigue ◽  
Mechanical Fatigue
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