Synergistic interaction of fatigue and stress corrosion on the corrosion fatigue crack growth behavior in Alloy 600 in high temperature and high pressure water

Maeng, Wan Young; Kang, Young Hwan; Nam, Tae Woon; Ohashi, Shigeo; Ishihara, Tatsumi

doi:10.1016/s0022-3115(99)00114-2

Cited by 12 publications

(7 citation statements)

References 11 publications

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“…The studied pipeline centrifugal compressor impeller has 15 blades, the inlet pressure is 0.17MPa, the temperature is 77˚C,the rotating speed is 4800rpm and the transport medium are H 2 S and CH 4 which molar percentage concentration are 30% and 70%.…”

Section: Methodsmentioning

confidence: 99%

“…The distribution of CH 4 and H 2 S in the internal flow field of centrifugal compressor impeller is shown in Fig. 4.…”

Section: The Transmission Medium Distribution Of Impeller Flow Fieldmentioning

confidence: 99%

“…The pit can develop into the stress corrosion cracking when it achieves criticality with the interaction of stress corrosion environment and load [4][5][6]. The pit and micro crack in the blade could caused the change of the pressure field and velocity field.…”

Section: Numerical Analysis Of the Defective Centrifugal Compressor Imentioning

confidence: 99%

See 2 more Smart Citations

Numerical Simulation of centrifugal compressor impeller flow flied based on ANSYS Workbench

Sun¹,

Ding²,

Chen³

et al. 2015

Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

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Abstract. Based on the finite element analysis software ANSYS Workbench, studied the fluid-solid coupling numerical simulation of the pipeline centrifugal compressor impeller with the unstructured grid finite volume method and finite element method. The equivalent stress distribution of the impeller, which caused by the centrifugal load, the coupling effect of centrifugal load and aerodynamic load, is analyzed. Based on the fluid components transport theory, the distribution of H 2 S in the flow field inside the impeller is analyzed, and discussed the influence law of pitting corrosion pits on the stress distribution and the H 2 S concentration of the centrifugal compressor impeller blade.

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Section: Methodsmentioning

confidence: 99%

“…The distribution of CH 4 and H 2 S in the internal flow field of centrifugal compressor impeller is shown in Fig. 4.…”

Section: The Transmission Medium Distribution Of Impeller Flow Fieldmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Simulation of centrifugal compressor impeller flow flied based on ANSYS Workbench

Sun¹,

Ding²,

Chen³

et al. 2015

Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

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show abstract

“…What's the worse, when the marine engineering structures are subjected to the combined action of fatigue load and corrosion environment, the service time will be shortened obviously. The interaction and coupling of the corrosion environment and fatigue load results in that the corrosion fatigue damage is much severe than the single action of corrosion or fatigue load [6][7][8]. According to the statistical data, corrosion fatigue F failure accounted for nearly 30% of the total number of accidents of ocean engineering structures [9].…”

Section: Introductionmentioning

confidence: 99%

Durability method on corrosion fatigue performance of AH 32 steel

Huang

Wang

2019

Frattura Ed Integrità Strutturale

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A durability method in view of cathodic protection is proposed to improve the corrosion fatigue resistance of AH 32 steel in seawater. By aid of corrosion fatigue tests, the effects of thermal spraying Zn (zinc) and Cr (chromium) coating corrosion fatigue lives are quantitatively determined, respectively, and electrochemical measurement and fracture analysis are used to analyze the life-prolonging mechanism of these two coatings on corrosion fatigue. The results show that both Zn and Cr coating improve the corrosion fatigue resistance of AH 32 steel, and the effect enhances with the decrease of stress. The effect of Cr coating on corrosion fatigue of AH 32 steel mainly reflects in extending the crack initiation life for its better corrosion resistance. While the effect of Zn coating on corrosion fatigue lies in not only inhibiting the initiation of corrosion fatigue but also restraining crack propagation as cathodic protection materials. To sum up, Cr coating has a better durability effect than Zn coating at higher stress level, while Zn exceeds Cr at low stress level.

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“…Corrosion environment assists corrosion pits formation by dissolution at the surface region where the metal is exposed and experienced high strains. Then corrosion pits evolve and eventually lead to fatigue crack initiation and rapid growth to failure 1–2 . Many aspects of corrosion fatigue have been studied extensively over the past 30 years.…”

Section: Introductionmentioning

confidence: 99%

Pit morphology characterization and corrosion fatigue crack nucleation analysis based on energy principle

Huang

2012

Fatigue Fract Eng Mat Struct

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A B S T R A C T Pit always changes its shape and size during corrosion fatigue. The actual morphology of pit is an outcome of the interaction between the variation in the elastic energy, surface energy and electrochemical energy stored in the cyclically stressed solid. In this paper, a two-variable semi-elliptical model is proposed to depict the pit's growing morphology. The critical condition for corrosion fatigue crack nucleation is deduced according to dislocation theory, and the influences of some important factors on critical pit size and crack nucleation life are discussed.

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Synergistic interaction of fatigue and stress corrosion on the corrosion fatigue crack growth behavior in Alloy 600 in high temperature and high pressure water

Cited by 12 publications

References 11 publications

Numerical Simulation of centrifugal compressor impeller flow flied based on ANSYS Workbench

Numerical Simulation of centrifugal compressor impeller flow flied based on ANSYS Workbench

Durability method on corrosion fatigue performance of AH 32 steel

Pit morphology characterization and corrosion fatigue crack nucleation analysis based on energy principle

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