Understanding Hydrogen-Induced Strain Localization in Super Duplex Stainless Steel Using Digital Image Correlation Technique

Örnek, Cem; Şeşen, Bilgehan Murat; Ürgen, Mustafa

doi:10.1007/s12540-021-01123-2

Cited by 16 publications

(4 citation statements)

References 22 publications

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“…Induced hydrogen atoms also promote strain localization in the metal lattice, a phenomenon termed hydrogen-induced strain localization [32], leading to the formation of The obtained results align closely with those found by researchers [33,34], emphasizing the consistency and reliability of our findings in this area of study. This agreement in outcomes enhances the credibility of our individual research efforts and contributes significantly to the body of evidence supporting our shared hypotheses.…”

Section: Tensile Propertiessupporting

confidence: 89%

Evaluating the Effect of Hydrogen on the Tensile Properties of Cold-Finished Mild Steel

Sey,

Farhat

2024

Crystals

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One of the major sources of catastrophic failures and deterioration of the mechanical properties of metals, such as ductility, toughness, and strength, in various engineering components during application is hydrogen embrittlement (HE). It occurs as a result of the adsorption, diffusion, and interaction of hydrogen with various metal defects like dislocations, voids, grain boundaries, and oxide/matrix interfaces due to its small atomic size. Over the years, extensive effort has been dedicated to understanding hydrogen embrittlement sources, effects, and mechanisms. This study aimed at assessing the tensile properties, toughness, ductility, and susceptibility to hydrogen embrittlement of cold-finished mild steel. Steel coupons were subjected to electrochemical hydrogen charging in a carefully chosen alkaline solution over a particular time and at various charging current densities. Tensile property tests were conducted immediately after the charging process, and the results were compared with those of uncharged steel. The findings revealed a clear drop in toughness and ductility with increasing hydrogen content. Fracture surfaces were examined to determine the failure mechanisms. This evaluation has enabled the prediction of steel’s ability to withstand environments with elevated hydrogen concentrations during practical applications.

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Section: Tensile Propertiessupporting

confidence: 89%

Evaluating the Effect of Hydrogen on the Tensile Properties of Cold-Finished Mild Steel

Sey,

Farhat

2024

Crystals

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“…We have demonstrated compositional differences in the outermost surface in lateral space and depth, showing variations over the ferrite and austenite grains [4][5][6][7]. It was also revealed that hydrogen infusion in the austenite and ferrite phases results in lattice strain evolution [8][9][10][11][12]. Moreover, we provided diffraction evidence for metastable quasihydrides in the austenite phase that form only during hydrogen uptake.…”

Section: Introductionmentioning

confidence: 65%

“…However, although the metal surface may be an efficient catalyst for atomic hydrogen production, some oxide film on the surface may be a sound barrier against HE. Furthermore, the surface is the structure in which hydrogen atoms first enter and where the hydrogen concentration is the highest [9,11,12]. The passive surface film is hence of crucial importance to delay HE.…”

Section: Introductionmentioning

confidence: 99%

Understanding Passive Film Degradation and its Effect on Hydrogen Embrittlement of Super Duplex Stainless Steel – Synchrotron X-Ray and Electrochemical Measurements Combined with Calphad and Ab-Initio Computational Studies

Örnek

Zhang

Larsson

et al. 2023

Preprint

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“…These internal stresses can lead to the As cracks propagate through the material, they reduce their ability to elongate before failure, resulting in decreased elongation. Induced hydrogen atoms also promote strain localization in the metal lattice, a phenomenon termed Hydrogen-Induced Strain Localization [27], leading to the formation of localized regions of high stress concentration. These stress concentrations can accelerate crack initiation and propagation, further reducing the material's elongation and ductility.…”

Section: Tensile Propertiesmentioning

confidence: 99%

Evaluating The Effect of Hydrogen on The Tensile Properties of Cold Finished Mild Steel

Sey,

Farhat

2024

Preprint

View full text Add to dashboard Cite

One of the major sources of catastrophic failures and deterioration of the mechanical properties of metals such as ductility, toughness, and strength, of various engineering components during application is hydrogen embrittlement (HE). It occurs as a result of adsorption, diffusion, and interaction of hydrogen with various metal defects like dislocations, voids, grain boundaries and oxide/matrix interfaces due to its small atomic size. Over the years, extensive effort has been dedicated to understanding hydrogen embrittlement sources, effects, and mechanisms. This research aimed at assessing the tensile properties; toughness, ductility, and susceptibility to hydrogen embrittlement, of cold-finished mild steel. Steel coupons were subjected to electrochemical hydrogen charging in a carefully chosen alkaline solution over a particular time and at various charging current densities. Tensile property tests were conducted immediately post the charging process, and the results were compared with those of uncharged steel. The findings revealed a clear drop in toughness and ductility with increasing hydrogen content. Fracture surfaces were examined to determine failure mechanisms. This evaluation has enabled the prediction of the steel's ability to withstand environments with elevated hydrogen concentrations during practical applications.

show abstract

Understanding Hydrogen-Induced Strain Localization in Super Duplex Stainless Steel Using Digital Image Correlation Technique

Cited by 16 publications

References 22 publications

Evaluating the Effect of Hydrogen on the Tensile Properties of Cold-Finished Mild Steel

Evaluating the Effect of Hydrogen on the Tensile Properties of Cold-Finished Mild Steel

Understanding Passive Film Degradation and its Effect on Hydrogen Embrittlement of Super Duplex Stainless Steel – Synchrotron X-Ray and Electrochemical Measurements Combined with Calphad and Ab-Initio Computational Studies

Evaluating The Effect of Hydrogen on The Tensile Properties of Cold Finished Mild Steel

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