Corrosion Evaluation of SAW Welded API 5L X-80 Joints in H2S-Containing Solution

Ballesteros, Adriana Forero; Gomes, José Antônio da Cunha Ponciano; Bott, Ivaní de Souza

doi:10.1590/1516-1439.368714

Cited by 10 publications

(7 citation statements)

References 26 publications

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“…Grains in the FZ have columnar shape due to the direction heat flow in the solidification process. Similar grain morphologies were found in experiments [46,48]. [43].…”

Section: Voronoi Tessellation For Different Weld Zonessupporting

confidence: 87%

Microstructure-sensitive estimation of small fatigue crack growth in bridge steel welds

Yuan

Zhang

Kim

et al. 2018

International Journal of Fatigue

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A probabilistic finite element model is implemented to estimate microstructurally small fatigue crack growth in bridge steel welds. Simulations are based on a microstructure-sensitive crystal plasticity model to quantify fatigue indicator parameters (FIPs) at the slip system level and a fatigue model that relates FIPs to fatigue lives of individual grains. Microstructures from three weld zones, namely, fusion zone (FZ), heat affected zone (HAZ), and base metal (BM), are constructed based on their microstructural attributes such as grain morphology, size, and orientation. Statistical volume elements (SVEs) are generated and meshed independently for the three welding zones. Each grain within the SVEs is divided into several slip bands parallel to crystallographic planes. During the loading process, cracks nucleate at the slip bands (SBs) with the largest FIP next to the free surface. The crack extension path is assumed to be transgranular along SBs and the number of cycles required to crack the neighbor grain is calculated by the corresponding FIP-based crack growth rate equation. The simulation process is carried out using ABAQUS with a user defined subroutine UMAT for crystal plasticity. After the calibration of the constitutive model and irreversibility parameters, numerical simulations for small crack growth in three zones are presented. The crack length vs. the predicted fatigue resistance shows significant differences in the mean values and variability among the three weld zones.

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“…Grains in the FZ have columnar shape due to the direction heat flow in the solidification process. Similar grain morphologies were found in experiments [46,48]. [43].…”

Section: Voronoi Tessellation For Different Weld Zonessupporting

confidence: 87%

Microstructure-sensitive estimation of small fatigue crack growth in bridge steel welds

Yuan

Zhang

Kim

et al. 2018

International Journal of Fatigue

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“…In fact, several reports have shown that HAZ suffers severe localised corrosion attack relative to the PM and FZ, which is attributed to the microstructural characteristics of these regions. 27,28 Thus, we tried to investigate the corrosion difference of regions in the weld joint by comparing the chemical compositions of each metallic surface. Fig.…”

Section: Discussionmentioning

confidence: 99%

Corrosion behaviour of welded low-carbon steel in the Arctic marine environment

Choi

Kim

2018

RSC Adv.

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“…The surface of iron and steel, existing in many forms ranging from exposed metal to oxidized to different degrees, finds many industrial applications [1][2][3] . Recent investigations have emphasized the importance for the protection of the metal surfaces in various applications.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical and Quantum Chemical Studies on Corrosion Inhibition Performance of 2,2'-(2-Hydroxyethylimino)bis[N-(alphaalpha-dimethylphenethyl)-N-methylacetamide] on Mild Steel Corrosion in 1M HCl Solution

Danaee

Rameshkumar²,

Avei

et al. 2020

Mat. Res.

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The inhibitory effect of Oxethazaine drug, 2,2'-(2-Hydroxyethylimino)bis[N-(alphaalphadimethylphenethyl)-N-methylacetamide] on corrosion of mild steel in 1M HCl solution was studied by weight loss measurements, electrochemical impedance spectroscopy and potentiodynamic polarization methods. The results of gravimetric and electrochemical methods demonstrated that the inhibition efficiency increased with an increase in inhibitor concentration in 1M HCl solution. The results from electrochemical impedance spectroscopy proved that the inhibition action of this drug was due to adsorption on the metal surface. Potentiodynamic polarization studies revealed that the molecule was a mixed type inhibitor. The adsorption of the molecule on the metal surface was found to obey Langmuir Adsorption isotherm. Potential of zero charge at the metal-solution interface was measured to provide the inhibition mechanism. The temperature dependence of the corrosion rate was also studied in the temperature range from 30 to 50 °C. Quantum chemical calculations were applied to correlate electronic structure parameters of the drug with its inhibition performance. The obtained theoretical results have been adapted with the experimental data.

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Corrosion Evaluation of SAW Welded API 5L X-80 Joints in H2S-Containing Solution

Cited by 10 publications

References 26 publications

Microstructure-sensitive estimation of small fatigue crack growth in bridge steel welds

Microstructure-sensitive estimation of small fatigue crack growth in bridge steel welds

Corrosion behaviour of welded low-carbon steel in the Arctic marine environment

Electrochemical and Quantum Chemical Studies on Corrosion Inhibition Performance of 2,2'-(2-Hydroxyethylimino)bis[N-(alphaalpha-dimethylphenethyl)-N-methylacetamide] on Mild Steel Corrosion in 1M HCl Solution

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