Notch Fatigue Crack Initiation and Propagation Life under Constant Amplitude Loading through Residual Stress Field

Benachour, Mustapha; Benguediab, M.; Benachour, N.

doi:10.4028/www.scientific.net/amr.682.17

Cited by 7 publications

(3 citation statements)

References 28 publications

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“…However, when the crack advances and the crack tip is located outside the creep damage zone, the FCG behaviour of LCD specimens gets similar to the PC material. Comparison of the FCG behaviour of both LCD specimens with PC specimens shows that the magnified threshold behaviour in LCD1 and LCD2 specimens is due to the high values of creep prestrains at the crack tip which would harden the material local to the crack tip and decelerate the FCG rates at the early stages of the test [29,30]. Similar declaration in the FCG rate has been reported by other researchers when local plastic pre-strains were introduced to the region ahead of the crack tip [31][32][33][34].…”

Section: Creep Damage Effects On Fatigue Crack Growth Behaviourmentioning

confidence: 99%

Local creep damage effects on subsequent low temperature fatigue crack growth behaviour of thick-walled pressure vessels

Mehmanparast

Nikbin

2022

Engineering Fracture Mechanics

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Section: Creep Damage Effects On Fatigue Crack Growth Behaviourmentioning

confidence: 99%

Local creep damage effects on subsequent low temperature fatigue crack growth behaviour of thick-walled pressure vessels

Mehmanparast

Nikbin

2022

Engineering Fracture Mechanics

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“…In this paper, weld cladding of low-alloy 4330 carbon steel has been carried out using nickel-chromium-based superalloy IN625. Corrosion resistance offered by this alloy is advantageous; however, the tensile residual stress present in the clad layer will not aid in increasing resistance to fatigue failure [16,63].…”

Section: Cladding-induced Residual Stressmentioning

confidence: 99%

Multiscale Measurements of Residual Stress in a Low-Alloy Carbon Steel Weld Clad with IN625 Superalloy

Benghalia

Rahimi

Wood

et al. 2018

Materials Performance and Characterization

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Fatigue fracture is one of the major degradation mechanisms in the low-alloy 4330 carbon steel pumps that are utilized in the hydraulic fracturing process operating under cyclic loading conditions. A weld cladding technology has been developed to improve the ability of these components to resist fatigue crack initiation by cladding them with a secondary material. This process introduces a residual stress profile into the component that can be potentially detrimental for fatigue performance. The cladding technology under examination is a low-alloy 4330 carbon steel substrate weld that is clad with the nickel-chromium-based superalloy IN625 and is investigated herein using several experimental residual stress measurement techniques. Understanding the magnitude and distribution of residual stress in weld clad components is of the utmost importance to accurately assess the performance of the component in service. This study summarizes the results of residual stress measurements that were determined using X-ray diffraction, i.e., hole drilling based on electronic speckle pattern interferometry, deep-hole drilling, and the contour method, to obtain the residual stress distributions from the surface of the weld clad, through the clad layer, and into the substrate material. The results of deep-hole drilling and the contour method show large-scale tensile residual stress in the clad layer and compressive residual stress in the majority of the substrate. However, the X-ray diffraction and hole drilling methods indicate the presence of short-scale compressive residual stress on the surface and near the surface of the clad layer. It was shown that these Manuscript

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“…he prevention of breaks in service is an ongoing objective of designers, builders and users, in both energy sector (thermal power stations, alternators), oil sector (gas pipelines, pipelines),aeronautical sector ( cells), rail and road transport, public works (bridges, dams, piers), consumer goods (automobiles) [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Simulation of the delay effect after applying a simple overload on alloys of aluminum 2024T351 using the Willemborg model

Bahram¹,

Chaib

Slimene

et al. 2019

Frattura Ed Integrità Strutturale

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The structures in service are subjected to loads whose amplitude varies most often over time. These differences in loading cycle levels will have a direct impact on the propagation of cracks that can lead to accelerations or slowdowns in the propagation speed of these cracks. Indeed, the delay of the propagation of a crack produced by the application of a simple overload depends on several parameters, such as the material, the loading, the geometry of the specimen and the environment. In this paper, study the influence of the loading parameters such as the load ratio, and the overload rate, on both crack propagation, propagation speed, number of delay cycle, is investigated by using the AFGROW code and the willenbourg model, which describes the delay after applying overloads.

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Notch Fatigue Crack Initiation and Propagation Life under Constant Amplitude Loading through Residual Stress Field

Cited by 7 publications

References 28 publications

Local creep damage effects on subsequent low temperature fatigue crack growth behaviour of thick-walled pressure vessels

Local creep damage effects on subsequent low temperature fatigue crack growth behaviour of thick-walled pressure vessels

Multiscale Measurements of Residual Stress in a Low-Alloy Carbon Steel Weld Clad with IN625 Superalloy

Simulation of the delay effect after applying a simple overload on alloys of aluminum 2024T351 using the Willemborg model

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