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Keywords: Ni-base superalloy
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Journal Articles

Thermomechanical Fatigue of Mar-M247: Extension of a Unified Constitutive and Life Model to Higher Temperatures

K. A. Brindley, M. M. Kirka, P. Fernandez-Zelaia, R. W. Neu
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research-Article
J. Eng. Mater. Technol. July 2015, 137(3): 031001.
Paper No: MATS-14-1022
https://doi.org/10.1115/1.4029908
Published Online: July 1, 2015
... 11, 2015. Assoc. Editor: Said Ahzi. 29 01 2014 19 02 2015 11 03 2015 The predictive capability of the Sehitoglu–Boismier unified constitutive and life model for Mar-M247 Ni-base superalloy is extended from a maximum temperature of 871 °C to 1038 °C. The unified constitutive...
View Article titled, Thermomechanical Fatigue of Mar-M247: Extension of a Unified Constitutive and Life Model to Higher Temperatures
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Topics: Creep, Damage, Temperature, Stress, Constitutive equations, Thermomechanics
Journal Articles

Efficient Methodologies for Determining Temperature-Dependent Parameters of a Ni-Base Superalloy Crystal Viscoplasticity Model for Cyclic Loadings

M. M. Kirka, D. J. Smith, R. W. Neu
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research-Article
J. Eng. Mater. Technol. October 2014, 136(4): 041001.
Paper No: MATS-13-1154
https://doi.org/10.1115/1.4027857
Published Online: July 9, 2014
... that reduce the amount of iteration required during the calibration. These experimental and calibration protocols are exercised using the CVP model of Shenoy et al. (2005, “Thermomechanical Fatigue Behavior of a Directionally Solidified Ni-Base Superalloy,” ASME J. Eng. Mater. Technol., 127 (3), pp. 325–336...
View Article titled, Efficient Methodologies for Determining Temperature-Dependent Parameters of a <span class="search-highlight">Ni</span>-<span class="search-highlight">Base</span> <span class="search-highlight">Superalloy</span> Crystal Viscoplasticity Model for Cyclic Loadings
Open the PDF for Efficient Methodologies for Determining Temperature-Dependent Parameters of a <span class="search-highlight">Ni</span>-<span class="search-highlight">Base</span> <span class="search-highlight">Superalloy</span> Crystal Viscoplasticity Model for Cyclic Loadings in another window
Topics: Calibration, Superalloys, Temperature, Stress
Journal Articles

Reduced-Order Constitutive Modeling of Directionally Solidified Ni-Base Superalloys

S. D. Neal, R. W. Neu
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research-Article
J. Eng. Mater. Technol. April 2014, 136(2): 021003.
Paper No: MATS-13-1111
https://doi.org/10.1115/1.4026271
Published Online: January 17, 2014
..., 2014. Assoc. Editor: Tetsuya Ohashi. 12 06 2013 11 12 2013 Temperature-dependent crystal viscoplasticity models are ideal for modeling large-grained, directionally solidified Ni-base superalloys but are computationally expensive. This work explores the use of reduced-order models...
View Article titled, Reduced-Order Constitutive Modeling of Directionally Solidified <span class="search-highlight">Ni</span>-<span class="search-highlight">Base</span> <span class="search-highlight">Superalloys</span>
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Topics: Artificial neural networks, Modeling, Superalloys, Temperature, Stress
Journal Articles

Extrapolation Techniques for Very Low Cycle Fatigue Behavior of a Ni-base Superalloy

Brian R. Daubenspeck, Ali P. Gordon
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. April 2011, 133(2): 021023.
https://doi.org/10.1115/1.4003602
Published Online: March 23, 2011
... blades with the absence of such data. This paper describes innovative methods used to predict high-temperature fatigue of IN738LC, a dual-phase Ni-base superalloy. Three sets of experimental data at different temperatures are used to evaluate and examine the validity of extrapolation methods...
View Article titled, Extrapolation Techniques for Very Low Cycle Fatigue Behavior of a <span class="search-highlight">Ni</span>-<span class="search-highlight">base</span> <span class="search-highlight">Superalloy</span>
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Topics: Fatigue, High temperature, Low cycle fatigue, Stress, Superalloys, Temperature, Gas turbines, Tensile strength, Cycles, Alloys