Low-Cycle Fatigue-Creep Interaction Behavior of GH4169 Supperalloy

Ye Da Lian; Li Qiang Gao; Qian Yin; Zhuang Zhuang Xu; Zhi Xun Wen

doi:10.4028/www.scientific.net/MSF.1018.43

Paper Titles

Numerical Analysis of Aerospace Nickel-Based Single-Crystal Superalloy Weldability Part I: Crystallography-Dependent Dendrite Growth
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Numerical Analysis of Solidification Behavior during Laser Welding Nickel-Based Single-Crystal Superalloy Part: II Crystallography-Dependent Supersaturation of Liquid Aluminum
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Numerical Analysis of Aerospace Nickel-Based Single-Crystal Superalloy Weldability Part III: Solidification Cracking Susceptibility
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Numerical Analysis of Aerospace Nickel-Based Single-Crystal Superalloy Weldability Part II: Nonequilibrium Solidification Behavior
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Low-Cycle Fatigue-Creep Interaction Behavior of GH4169 Supperalloy
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Multi-Objective Optimization of PMEDM Process of 90CrSi Alloy Steel for Minimum Electrode Wear Rate and Maximum Material Removal Rate with Silicon Carbide Powder
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Multi-Objective Optimization of Surface Roughness and Electrode Wear in EDM Cylindrical Shaped Parts
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A Study on Influence of Input Parameters on Surface Roughness in PMEDM Cylindrical Shaped Parts
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Multi-Objective Optimization of PMEDM Input Factors for Processing Cylindrical Shaped Parts
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HomeMaterials Science ForumMaterials Science Forum Vol. 1018Low-Cycle Fatigue-Creep Interaction Behavior of...

Low-Cycle Fatigue-Creep Interaction Behavior of GH4169 Supperalloy

Abstract:

Effects of different loading and uninstalling and safe loading time on the low-cycle fatigue-creep interaction behavior of GH4169 superalloy at 650°C/850MPa have been investigated. The study found that under the safe loading time, with the longer the loading and unistalling time, the fatigue-creep property and life of this alloy were gradually improved. However, under the same loading and uninstalling time, with the extension of the loading time, property of the fatigue-Creep of the alloy was gradually reduced, and its life was gradually shortened. In addition, The fracture failure behavior of the alloy under different conditions was studied in detail. Interestingly, With the extension of the holding time, the fracture failure of the alloy was changed from fatigue damage to creep damage, which makes its fracture mode transition the transgranular fracture into intergranular fracture extension.

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Periodical:

Materials Science Forum (Volume 1018)

Pages:

43-48

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1018.43

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Online since:

January 2021

Authors:

Ye Da Lian*, Li Qiang Gao, Qian Yin, Zhuang Zhuang Xu, Zhi Xun Wen

Keywords:

Fatigue-Creep Interaction, Fracture Failure, Microstructure Evolution, Superalloy

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