High-Cycle Fatigue of Single-Crystal Heat-Resistant Nickel Alloy under the Conditions of Stress Concentration

Metallurgist ◽  
2020 ◽  
Vol 63 (11-12) ◽  
pp. 1237-1247 ◽  
Author(s):  
M. S. Belyaev ◽  
L. V. Morozova ◽  
M. A. Gorbovets ◽  
A. V. Slavin
Keyword(s):  
Stress Concentration ◽  
Single Crystal ◽  
Nickel Alloy ◽  
High Cycle Fatigue ◽  
Cycle Fatigue ◽  
Heat Resistant

Crack initiation mechanisms during very high cycle fatigue of Ni-based single crystal superalloys at high temperature

2020 ◽  
Vol 188 ◽  
pp. 131-144 ◽  
Author(s):  
A. Cervellon ◽  
S. Hémery ◽  
P. Kürnsteiner ◽  
B. Gault ◽  
P. Kontis ◽  
...  
Keyword(s):  
High Temperature ◽  
Crack Initiation ◽  
Single Crystal ◽  
High Cycle Fatigue ◽  
Cycle Fatigue ◽  
Very High Cycle Fatigue ◽  
Very High

The Effect of Primary Axis and Low Angle Boundary Misorientation on CMSX-10K Mechanical Properties

2000 ◽  
Author(s):  
Yakin Patel ◽  
Paul F. Browning ◽  
Michael D. Fitzpatrick ◽  
Dean Schmiedechnekt ◽  
Allen Price ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Single Crystal ◽  
Gas Turbines ◽  
High Cycle Fatigue ◽  
High Efficiency ◽  
Stress Rupture ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Axis Orientation ◽  
Primary Axis

The U. S. Department of Energy’s Advanced Turbine Systems (ATS) program supports the development of high efficiency gas turbines for industrial and power generation applications. As part of this program, CMSX-10K, a third generation single crystal Ni-base superalloy, is being considered for use in turbine blade applications in an ATS engine. In support of the design and casting process development of CMSX-10K, assessment of component tolerance to casting defects was performed. Single crystal specimens with primary axis orientation between 4 and 26 degrees and bicrystal specimens with low angle boundaries (LABs) having between 0 and 18 degrees of misorientation were used. The effects of primary axis misorientation and LABs on critical mechanical properties were evaluated. Primary axis misorientation of greater than 15 degrees reduced tensile and high-cycle fatigue properties. Similarly, stress rupture properties were reduced for primary axis misorientation of greater than 20 degrees. LABs having greater than 10 degrees of misorientation caused significantly reduced stress rupture life. LABs having greater than 12 degrees of misorientation also resulted in reduced tensile and high-cycle fatigue properties.

High cycle fatigue behavior of a single crystal superalloy at elevated temperatures

2007 ◽  
Vol 454-455 ◽  
pp. 357-366 ◽  
Author(s):  
Y. Liu ◽  
J.J. Yu ◽  
Y. Xu ◽  
X.F. Sun ◽  
H.R. Guan ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Cycle Fatigue ◽  
Elevated Temperatures ◽  
Fatigue Behavior ◽  
Single Crystal Superalloy ◽  
Cycle Fatigue

Damage mechanisms during very high cycle fatigue of a coated and grit-blasted Ni-based single-crystal superalloy

2021 ◽  
Vol 142 ◽  
pp. 105962
Author(s):  
Alice Cervellon ◽  
Luciana Maria Bortoluci Ormastroni ◽  
Zéline Hervier ◽  
Tresa M. Pollock ◽  
Fernando Pedraza ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Cycle Fatigue ◽  
Single Crystal Superalloy ◽  
Cycle Fatigue ◽  
Damage Mechanisms ◽  
Very High Cycle Fatigue ◽  
Very High

INFLUENCE OF THE TYPE OF LOADING ON HIGH-CYCLE FATIGUE OF HEAT-RESISTANT ALLOYS

2019 ◽  
pp. 96-104
Author(s):  
M.A. Gorbovets ◽  
◽  
I.A. Khodinev ◽  
V.A. Karanov ◽  
V.D. Yushin ◽  
...  
Keyword(s):  
High Cycle Fatigue ◽  
Cycle Fatigue ◽  
Heat Resistant
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