Estimation of hydrogen embrittlement process using statistical analysis method

Kamisho, Takuya; Ishii, Ryuta; Tsuda, Masayuki

doi:10.1016/j.corsci.2021.109799

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…During operational life of mechanical parts and perhaps even more often as a result of heat treatments designed to improve some properties of the product, hydrogen atoms can be absorbed by carbon steel alloys [1][2][3][4][5][6][7][8][9][10]. The absorbed hydrogen may be present either as atomic or molecular form.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Embrittlement and its Effect on Fatigue Life of Nitrided Steel in Gigacycle Fatigue: Analysis and Modelling

Major

2022

J. Phys.: Conf. Ser.

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This paper deals with the effect of hydrogen embrittlement on the fatigue life of steels. This phenomenon is typical for the gigacycle fatigue region, but we also encounter it in surface-treated materials. in which a subsurface crack initiation has occurred. In samples in which the fracture is affected by the presence of hydrogen embrittlement, subsurface fatigue crack initiation occurs. In this work we observe the change in toughness and local elastic modulus depending on the hydrogen diffusion of hydrogen over time.

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Section: Introductionmentioning

confidence: 99%

Hydrogen Embrittlement and its Effect on Fatigue Life of Nitrided Steel in Gigacycle Fatigue: Analysis and Modelling

Major

2022

J. Phys.: Conf. Ser.

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“…Fractals and spatial autocorrelation have been used to evaluate the surface properties of corroded steel plates taken from real structural members [9]. In addition, a Monte Carlo simulation method have been used to estimate the process progression of corrosion using the probability distributions of corrosion growth rate [10], [11]. And a prediction model has been established by Bayesian inference to consider the variation of corrosion rate [12].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulations for time-dependent corrosion surface of unpainted structural steel plates using spatio-temporal data

Jiang

Hirohata

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Structural failure due to corrosion of steel members is a long-term process. A method to precisely simulate the development of corrosion on steel surfaces is of great significance. In this study, 9 specimens of unpainted steel plates, SM400A were used for the experiments. The experiments were conducted under artificial seawater corrosive environments to accelerate the corrosion process. The corrosion depth data of each unpainted steel plate for the spatial statistical analysis was measured by a laser focus measuring system when the accelerated corrosion experiments of 28, 84, and 168 days. Semivariogram was used in this spatial statistical analysis to research the spatial autocorrelation structures of the corrosion surface. By using this and the technique of ordinary kriging, the method to simulate the spatial features of corrosion surface was proposed. The results of the simulation indicated that the corrosion depth and surface topography of corrosion surfaces were highly consistent with the experiments. In addition, a prediction method for time-dependent corrosion surface was proposed by investigating the relationship between the spatial autocorrelation structures and their time-dependence data.

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Coupled effects of hydrogen embrittlement and temperature and surface roughness on the mechanical properties of GS80A steel

Guo,

Liu,

et al. 2024

Engineering Failure Analysis

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Estimation of hydrogen embrittlement process using statistical analysis method

Cited by 6 publications

References 28 publications

Hydrogen Embrittlement and its Effect on Fatigue Life of Nitrided Steel in Gigacycle Fatigue: Analysis and Modelling

Hydrogen Embrittlement and its Effect on Fatigue Life of Nitrided Steel in Gigacycle Fatigue: Analysis and Modelling

Numerical simulations for time-dependent corrosion surface of unpainted structural steel plates using spatio-temporal data

Coupled effects of hydrogen embrittlement and temperature and surface roughness on the mechanical properties of GS80A steel

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