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Keywords: creep
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Proceedings Papers

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A008, June 13–17, 2022
Paper No: GT2022-83270
.... Effects of multiple small holes on tensile stress-strain and tensile creep resistance of an oxide fiber-oxide matrix composite comprising Nextel™720 alumina-mullite fibers and a porous alumina matrix were evaluated at 1200°C. Gauge section of each test specimen included seventeen (17) 0.5-mm diameter...
Proceedings Papers

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A028, June 13–17, 2022
Paper No: GT2022-82760
... Abstract The creep fracture life of turbine blades is a limitation of the whole engine life because of its high operating temperature. Thus, developing an analysis approach of creep damage based on complex service history is of significant importance for the safe operation and economic overhaul...
Proceedings Papers

Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A015, June 13–17, 2022
Paper No: GT2022-82512
... focuses on a fundamental creep study and characterization of a novel nickel-base superalloy (ABD ® -900AM) that was manufactured using a laser-based powder bed fusion AM process. The material was subjected to a sub-solvus solution anneal and multi-step aging heat-treatment to produce a bi-modal...
Proceedings Papers

Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A014, June 13–17, 2022
Paper No: GT2022-82499
... Abstract Gas turbine components and many industrial high temperature components suffer from creep, a viscous effect of the material that induce irreversible deformation, microstructural damage, and eventually failure. Creep strain (where the creep strain ε cr is a function of time, stress...
Proceedings Papers

Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT24A006, June 13–17, 2022
Paper No: GT2022-81676
... creep cavities fatigue HCF fracture high temperature materials Abstract Cast polycrystalline nickel-base superalloys are typically used for critical high temperature aerospace and automotive components, such as turbine blades or turbocharger wheels. These high temperature components...
Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A017, June 7–11, 2021
Paper No: GT2021-59668
... software was used to fill in engine operating data at stations where recordings have not been taken. Engine life consumption was based on creep and low cycle fatigue failure mechanisms of the first gas generator turbine stage. Creep life fractions were calculated based on the Larson-Miller parameter curves...
Proceedings Papers

Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T18A002, June 7–11, 2021
Paper No: GT2021-01719
.... The virtues of using Ni-base superalloys in hot- Keywords: MCrAlY, aluminides, thermal barrier coatings, single section components has been well recognized and practiced as a crystal alloys, hot corrosion, corrosion and oxidation testing, means of substantial increase in turbine-inlet temperature, creep...
Proceedings Papers

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT27A001, June 7–11, 2021
Paper No: GT2021-58480
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58480 A REDUCED ORDER MODELING APPROACH TO PROBABILISTIC CREEP-DAMAGE PREDICTIONS IN FINITE ELEMENT ANALYSIS Md Abir Hossain Jacqueline R. Cottingham Calvin M...
Proceedings Papers

Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T17A016, June 7–11, 2021
Paper No: GT2021-59765
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59765 DEVELOPING AN IMPLICIT CREEP MODEL FROM OPEN LITERATURE DATA William David Day W. David Day, Inc, Jupiter, FL ABSTRACT Keywords: Creep, Rupture, Haynes 282...
Topics: Creep, Rupture
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A008, September 21–25, 2020
Paper No: GT2020-14495
...LIFE PREDICTION MODELING OF COMBINED HIGH-CYCLE FATIGUE AND CREEP Thomas Bouchenot1,2, Kirtan Patel2, Ali P. Gordon1, Sachin Shinde2 1University of Central Florida, Orlando, FL USA 2Siemens Energy, Inc., Orlando, FL USA ABSTRACT Industrial gas turbine blades are subjected to high temperatures...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A017, September 21–25, 2020
Paper No: GT2020-14870
...PROBABILISTIC MINIMUM-CREEP-STRAIN-RATE AND STRESS-RUPTURE PREDICTION FOR THE LONG-TERM ASSESSMENT OF IGT COMPONENTS Md Abir Hossain1, Calvin M. Stewart1 1 The University of Texas at El Paso, El Paso, Texas, USA 79968-0521 ABSTRACT Time-dependent creep induced failure is a major concern...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A012, September 21–25, 2020
Paper No: GT2020-16017
...Abstract Abstract In conventional creep testing (CCT) a specimen is subject to constant load and temperature for a long-duration until creep rupture occurs. Conventional testing can be costly when considering the number of experiments needed to characterize the creep response of a material over...
Proceedings Papers

Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 225-234, June 9–13, 2008
Paper No: GT2008-51278
... that are significantly different than those in traditional gas turbines. A computational methodology, based on three-dimensional finite element analysis (FEA) and damage mechanics is presented for predicting the evolution of creep in airfoils in these advanced turbine systems. Information revealed from three-dimensional...
Proceedings Papers

Proc. ASME. GT2007, Volume 5: Turbo Expo 2007, 71-79, May 14–17, 2007
Paper No: GT2007-27437
... 10 03 2009 The microstructures and creep properties at 760 °C and 276 MPa of three powder metallurgy TiAl alloys (Ti-48Al-2Cr-2Nb, Ti-48Al-2Cr-2Nb+0.5W, and Ti-48Al-2Cr-2Nb+1W (atomic percent)) are presented. The results indicate that the addition of W to the base composition, the use...
Proceedings Papers

Proc. ASME. GT2004, Volume 6: Turbo Expo 2004, 103-113, June 14–17, 2004
Paper No: GT2004-53917
... subjected to a complex state of stress. Creep deformation can cause the compressor discharge air passages to expand, thus restricting exhaust gas flow and increasing the turbine backpressure. The material of construction must, therefore, be resistant to both oxidation and creep deformation. Long-term...
Proceedings Papers

Proc. ASME. GT2004, Volume 4: Turbo Expo 2004, 845-850, June 14–17, 2004
Paper No: GT2004-54040
... to the scheduled life and was confirmed to rejuvenate the microstructures and the tensile, Charpy impact, creep and low cycle fatigue properties to a condition equivalent to or even better than the new ones under the development program. According to above mentioned accomplishments, a number of HIP refurbished...
Proceedings Papers

Proc. ASME. GT2005, Volume 2: Turbo Expo 2005, 857-863, June 6–9, 2005
Paper No: GT2005-68787
... lattice misfit at operated temperature, 60 vol.% of γ′, solution heat treatment window of >50°C, and creep strength better than 2 nd generation superalloys. Corrosion resistance was also considered. A brief explanation of the NIMS-ADP and the whole development works of SC alloy TMS-82+, such as alloy...
Proceedings Papers

Proc. ASME. GT2006, Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B, 483-490, May 8–11, 2006
Paper No: GT2006-91312
... 23 09 2008 The effects of centrifugal force and operating temperature on the stress and creep deformation of rotating micro-turbo rotors are studied in this work. The thermal-mechanical- creep coupled finite element model provided in the MARC package is employed. The variation...