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Hydrogen embrittlement

About: Hydrogen embrittlement is a research topic. Over the lifetime, 8754 publications have been published within this topic receiving 131517 citations.


Papers
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Journal ArticleDOI
TL;DR: In this article, a semi-empirical model of metals and impurities (embedded atom method) was proposed to make possible a static treatment of the brittle fracture of a transition metal in the presence of hydrogen.
Abstract: A new, semiempirical model of metals and impurities (embedded atom method) makes possible a static treatment of the brittle fracture of a transition metal in the presence of hydrogen. Results indicate that hydrogen can reduce the fracture stress in nickel.

2,274 citations

Journal ArticleDOI
TL;DR: A new model for hydrogen-assisted cracking is presented in this article, which explains the observations of decreasing microscopic plasticity and changes of fracture modes with decreasing stress intensities at crack tips during stress-corrosion cracking and HAC of quenched-and tempered steels.
Abstract: A new model is presented for hydrogen-assisted cracking (HAC) which explains the observations of decreasing microscopic plasticity and changes of fracture modes with decreasing stress intensities at crack tips during stress-corrosion cracking and HAC of quenched-and- tempered steels The model suggests that the presence of sufficiently concentrated hydrogen dissolved in the lattice just ahead of the crack tip aids whatever deformation processes the microstructure will allow Intergranular, quasicleavage, or microvoid coalescence fracture modes operate depending upon the microstructure, the crack-tip stress intensity, and the concentration of hydrogen The model unifies several theories but shows how the stress-sorption and lattice embrittlement models are unnecessary The model shows that planar pressure effects are necessary at low stress intensities and are necessary only to augment the driving force from the applied loads The basic hydrogen-steel interaction appears to be an easing of dislocation motion or generation, or both

1,070 citations

Book
01 Jan 1979
TL;DR: In this article, the authors reviewed the corrosion mechanisms of stainless steel and provided a platform for selecting the suitable type of steel for any application with high corrosion resistance, such as pitting and crevice corrosion, intergranular corrosion, stress-corrosion cracking, hydrogen embrittlement, and attack by high-temperature gases.
Abstract: With good pricing, high strength, as well as corrosion resistance, stainless steel is a widely used and popular choice for many applications as a rust resistant material, however many types of corrosion attack stainless steel, such as pitting and crevice corrosion, intergranular corrosion, stress-corrosion cracking, hydrogen embrittlement, general corrosion, and attack by high-temperature gases. This article reviews the corrosion mechanisms of stainless steel to understand the corrosion behavior of stainless steel which is important for the design of any application. Moreover, this article will provide a platform for selecting the suitable type of stainless steel for any application with high corrosion resistance.

877 citations

Journal ArticleDOI
TL;DR: The deleterious effects of hydrogen on the tensile properties of metals are caused by the association and movement of hydrogen with dislocations as discussed by the authors, and hydrogen-dislocation interactions modify plastic deformation processes by stabilizing microcracks, by changing the work hardening rate, and by solid solution hardening.

553 citations

Journal ArticleDOI
TL;DR: In this paper, the authors performed deformation studies in situ in a transmission electron microscope equipped with an environmental cell to elucidate the mechanisms of hydrogen embrittlement and found that solute hydrogen can increase the velocity of dislocations, increase the crack propagation rate, decrease stacking-fault energy of 310s stainless steel and increase the propensity for edge character dislocation.

546 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023266
2022532
2021338
2020372
2019356
2018329