Time and Temperature Dependent Cyclic Plasticity and Fatigue Crack Growth of the Nickel-Base Alloy617B – Experiments and Models

Gerhard Maier; Hermann Riedel; Thomas Seifert; Jutta Klöwer; Ralf Mohmann

doi:10.4028/www.scientific.net/AMR.278.369

Paper Titles

Influence of Chemistry on the Tensile Yield Strength of Nickel-Based Single Crystal Superalloys
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On Localized Deformation and Recrystallization as Damage Mechanisms during Thermomechanical Fatigue of Single Crystal Nickel-Based Superalloys
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A Mathematical Framework for Cyclic Life Prediction of Directionally Solidified Nickel Superalloys
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Time and Temperature Dependent Cyclic Plasticity and Fatigue Crack Growth of the Nickel-Base Alloy617B – Experiments and Models
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Degradation in Fatigue Crack Propagation Resistance of a Gas Turbine Vane after Long Term Service
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Evaluation of Mechanical Properties of a Superalloy Disk with a Dual Microstructure
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Analysis of the Effective and Internal Cyclic Stress Components in the Inconel Superalloy Fatigued at Elevated Temperature
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 278Time and Temperature Dependent Cyclic Plasticity...

Time and Temperature Dependent Cyclic Plasticity and Fatigue Crack Growth of the Nickel-Base Alloy617B – Experiments and Models

Abstract:

Isothermal low cycle fatigue and thermomechanical fatigue tests are performed on Alloy617B in the solution-annealed and stabilized condition at temperatures between room temperature and 900 °C. In addition, the replica technique is applied to study the growth of microcracks. The Chaboche model is found to describe the cyclic viscoplastic behavior of both heats, except the pronounced cyclic hardening in the low-temperature branches of the TMF tests. A lifetime model based on the cyclic crack-tip opening displacement and the cyclic J integral is used to describe the measured lifetimes and crack growth rates. However, the description is not fully consistent, since the data for room temperature and for temperatures above 400 °C fall into two separate scatter bands.

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Periodical:

Advanced Materials Research (Volume 278)

Pages:

369-374

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.278.369

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Online since:

July 2011

Authors:

Gerhard Maier, Hermann Riedel, Thomas Seifert, Jutta Klöwer, Ralf Mohmann

Keywords:

Alloy 617, Crack Growth, Cyclic Deformation, Fatigue Life Prediction, Heat Treatment, Thermo-Mechanical Fatigue (TMF)

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