Internal reversible hydrogen embrittlement leads to engineering failure of cold drawn wire

Mallick, Arup; Das, Souvik; Mathur, Jitendra; Bhattacharyya, Tarun Kanti; Dey, Arthita

doi:10.1016/j.csefa.2013.05.005

Cited by 13 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The above finding can be attributed to the fact that the hydrogen trapping in steel wire samples was increased significantly by increasing the prestressing level, which generated more lattice defects such as grain boundaries, dislocations, voids, and other crystal defects. The molecular hydrogen is accumulated more in voids, pores, and interfaces than in other defect sites 42 . These defects are believed to increase with increasing the prestressing levels and thus increasing the potential trapping sites for hydrogen absorbing, which resulted in more severe degradation of the material.…”

Section: Tensile Behavior Of the Plasma-hydrogenated Prestressing Ste...mentioning

confidence: 99%

Plasma Hydrogenation of High-Carbon Structural Steel Wires under Different Prestressing Levels

El-Amoush

Al-Duheisat

2023

Mat. Res.

View full text Add to dashboard Cite

High-carbon structural steel wires were prestressed to various levels in a plasma hydrogenation environment and then pulled in a slow strain rate test (SSRT). The effect of plasma hydrogenation under different prestressing levels on the material's tensile response and hydrogen embrittlement was noted. It was found that the ultimate tensile strength (UTS), yield strength, and ductility of the steel wire samples are decreased by plasma hydrogenation and prestressing levels. The more drastic decrease in the UTS, yield strength, and ductility is found in the plasma hydrogenated prestressing steel to a higher prestressing level. Moreover, the hydrogen embrittlement index of the steel wire samples is significantly increased by plasma hydrogenation and prestressing level. The highly plasma hydrogenated prestressing steel wire samples exhibit complete brittle fracture. A mixed mode of fracture, i.e., ductile and brittle, was observed at the surface of the plasma hydrogenated prestressing steel wire samples at lower levels. The hydrogen embrittlement areas at the fracture surfaces of steel wire samples are observed to increase with plasma hydrogenation and prestressing levels. More severe hydrogen cracking and blistering resulted in the fracture surfaces of plasma-hydrogenated prestressing steel wire samples with higher levels.

show abstract

Section: Tensile Behavior Of the Plasma-hydrogenated Prestressing Ste...mentioning

confidence: 99%

Plasma Hydrogenation of High-Carbon Structural Steel Wires under Different Prestressing Levels

El-Amoush

Al-Duheisat

2023

Mat. Res.

View full text Add to dashboard Cite

show abstract

“…In the matter of environmentally assisted cracking [43], in addition to pure stress corrosion cracking (SCC) by localized anodic dissolution (LAD), the deleterious phenomenon usually known as hydrogen embrittlement (HE) is harmful in cold-drawn pearlitic steel in the form of prestressing steel wires and cables in service [44][45][46][47][48][49][50][51][52]. The analyses of such a phenomenon usually were performed in the past from the engineering point of view in the form of fracture mechanics approaches to avoid catastrophic accidents (an important practical aspect of HE and HAMD in high-strength pearlitic steel), so that there is a lack of purely-scientific material science approaches.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen-Assisted Microdamage of Eutectoid Pearlitic Steel in the Presence of Notches: The Tearing Topography Surface

Toribio

2023

Metals

View full text Add to dashboard Cite

This paper studies the hydrogen-assisted microdamage (HAMD) in fully-pearlitic steel. A detailed analysis is provided of the HAMD region in axisymmetric round-notched samples of high-strength eutectoid pearlitic steel under hydrogen embrittlement environmental conditions. The microscopic appearance and evolution of the hydrogen affected region is analyzed from the initiation (sub-critical) to the fracture (critical) situations. The use of very distinct notched samples and their associated stress distributions in the vicinity of the notch tip allows for a study of the key role of the triaxial stress state on hydrogen diffusion and micro-cracking (or micro-damage). The microscopic appearance of the hydrogen-affected zone (the so-called tearing topography surface) resembles micro-damage, micro-cracking or micro-tearing at a micro- or nano-scale due to hydrogen degradation, thus affecting the notch tensile strength and producing hydrogen embrittlement. A micromechanical model is proposed to explain these hydrogen effects on the material on the basis of the lamellar micro- and nano-structure of the pearlitic steel.

show abstract

“…High-strength pearlitic steel wires are highly susceptible to hydrogen embrittlement (HE) fracture phenomena [1]. This way, HE is considered the main cause of in-service failure of different mechanical components [2] and prestressing steel wires in the presence of aggressive environments [3,4].…”

Section: Introductionmentioning

confidence: 99%

Innovative Design of Residual Stress and Strain Distributions for Analyzing the Hydrogen Embrittlement Phenomenon in Metallic Materials

2022

View full text Add to dashboard Cite

Round-notched samples are commonly used for testing the susceptibility to hydrogen embrittlement (HE) of metallic materials. Hydrogen diffusion is influenced by the stress and strain states generated during testing. This state causes hydrogen-assisted micro-damage leading to failure that is due to HE. In this study, it is assumed that hydrogen diffusion can be controlled by modifying such residual stress and strain fields. Thus, the selection of the notch geometry to be used in the experiments becomes a key task. In this paper, different HE behaviors are analyzed in terms of the stress and strain fields obtained under diverse loading conditions (un-preloaded and preloaded causing residual stress and strains) in different notch geometries (shallow notches and deep notches). To achieve this goal, two uncoupled finite element (FE) simulations were carried out: (i) a simulation by FE of the loading sequences applied in the notched geometries for revealing the stress and strain states and (ii) a simulation of hydrogen diffusion assisted by stress and strain, for estimating the hydrogen distributions. According to results, hydrogen accumulation in shallow notches is heavily localized close to the wire surface, whereas for deep notches, hydrogen is more uniformly distributed. The residual stress and plastic strains generated by the applied preload localize maximum hydrogen concentration at deeper points than un-preloaded cases. As results, four different scenarios are established for estimating “a la carte” the HE susceptibility of pearlitic steels just combining two notch depths and the residual stress and strain caused by a preload.

show abstract

Internal reversible hydrogen embrittlement leads to engineering failure of cold drawn wire

Cited by 13 publications

References 4 publications

Plasma Hydrogenation of High-Carbon Structural Steel Wires under Different Prestressing Levels

Plasma Hydrogenation of High-Carbon Structural Steel Wires under Different Prestressing Levels

Hydrogen-Assisted Microdamage of Eutectoid Pearlitic Steel in the Presence of Notches: The Tearing Topography Surface

Innovative Design of Residual Stress and Strain Distributions for Analyzing the Hydrogen Embrittlement Phenomenon in Metallic Materials

Contact Info

Product

Resources

About