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Hydrogen embrittlement of carbon steels and their welds

sciencedirectJan 01, 2012Hydrogen embrittlement of carbon steels and their welds ...Cited by 8Publish Year 2012Author K. XuMechanical properties of carbon steels and their welds in high pressure hydrogen. Hydrogen embrittlement of carbon steels is commonly evaluated by hydrogen effect on tensile properties, fatigue crack...

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Hydrogen-Embrittlement endangers the Welding of High Hydrogen embrittlement of carbon steels and their welds

Hydrogen-Embrittlement is a dangerous condition. It affects especially strong and hard steels, by drastically reducing ductility and favoring the appearance of cracks. Hydrogen-Embrittlement must be avoided, during fabrication processes, by implementing suitable precautions. In this presentation the treatment of the matter is limited to steel. What kind of fasteners can be embrittled with hydrogen?What kind of fasteners can be embrittled with hydrogen?Embrittlement. Hydrogen embrittlement is generally associated with high-strength fasteners made of carbon and alloy steels. However, it is worth noting that even precipitate hardened stainless steels, titanium, and aluminum alloys can be vulnerable. Hydrogen embrittled fasteners or parts under stress can fail suddenly without any warning.Embrittlement Fastenal Which is the best definition of hydrogen embrittlement?Which is the best definition of hydrogen embrittlement?Hydrogen embrittlement (HE) is defined by ASTM F2078 as a permanent loss of ductility in a metal or alloy caused by hydrogen in combination with stress, either externally applied or internal residual stress. Hydrogen embrittlement is commonly associated with high-strength steels including fasteners made of carbon and alloy steels.Embrittlement Fastenal

Why does hydrogen embrittlement occur in arc welding?Why does hydrogen embrittlement occur in arc welding?Hydrogen embrittlement. Hydrogen atoms diffuse readily into steel during processes such as acid pickling, electroplating, arc welding with moist or wet electrodes, and exposure to hydrogen sulfide. After stressing, delayed brittle fracture may occur, particularly in higherstrength steels. Stress-corrosion cracking.Embrittlement of steels - TEC EurolabCited by 20Publish Year 2003Author S. Kalbert, V. Ramasubbu, N. Parvathavarthini, T P. S. Gill 7 minsTesting to qualify steels for hydrogen service (Conference Hydrogen embrittlement of carbon steels and their welds

@article{osti_6734505, title = {Testing to qualify steels for hydrogen service}, author = {Louthan, Jr, M R}, abstractNote = {The apparent susceptibility of a material to hydrogen damage is influenced by a wide variety of environmental and test variables. Strain rate, stress state, nature of the hydrogeneous environment, temperature, surface finish, metallurgical condition and pre-exposure Hydrogen embrittlement of carbon steels and their welds Cited by 2Publish Year 2020Author Yongjoon Kang, Minjeong Kim, Gidong Kim, Namkyu Kim, Sangwoo gInfluence of alloying on hydrogen-assisted cracking and Hydrogen embrittlement of carbon steels and their welds Study of hydrogen-assisted cracking and measurement of diffusible hydrogen content in different Cr-Mo steel welds shows that under identical conditions, susceptibility to cracking increased and diffusible hydrogen content decrease with increase in alloy content. Hydrogen permeation studies show that hydrogen diffusivity decreases and solubility increases with increase in alloy content.

Cited by 3Publish Year 2012Author L. Duprez, E. Leunis, Ö.E. Güngör, S. ClaessensPeople also search forhydrogen embrittlement failurehydrogen embrittlement in steelhydrogen embrittlement problemshydrogen embrittlement testhydrogen embrittlement test equipmentastm hydrogen embrittlement testHydrogen-induced cracking and corrosion behavior of Hydrogen embrittlement of carbon steels and their welds

2 days agoThe use of friction stir welding (FSW) has proven to be an excellent alternative to join engineering components. Although FSW has had a significant development in recent years, challenges for new applications have been raised, such as offshore steel parts suffering hydrogen embrittlement in the gas and oil industry.Cited by 4Publish Year 2012Author C. San MarchiPeople also search forhydrogen embrittlement carbon steelhydrogen embrittlement in steelhydrogen embrittlement preventionmartensitic stainless steelmartensitic stainless steel 410martensitic stainless steel gradesImages of Hydrogen Embrittlement of carbon steels and Thei imagesHydrogen Embrittlement of Carbon Steel Embrittlement Hydrogen Embrittlement of Carbon Steel Hydrogen embrittlement is a metals loss of ductility and reduction of load bearing capability due to the absorption of hydrogen atoms or molecules by the metal. The result of hydrogen embrittlement is that components crack and fracture at stresses less than the yield strength of the metal. 4 minsPeople also search forhydrogen embrittlement of steelhydrogen embrittlement in hydrogen storahydrogen embrittlement ndthydrogen embrittlement corrosionhydrogen embrittlement in hydrogen pipe hydrogen embrittlement failure semIII.3 Hydrogen Embrittlement of Structural SteelsCarbon-manganese steels are candidates for the structural materials in hydrogen gas pipelines; however, it is well known that these steels are susceptible to hydrogen embrittlement. Decades of research and industrial experience have established that hydrogen embrittlement compromises the structural integrity of steel components. This experience

Fastenerdata - Hydrogen Embrittlement 16f100 - Fastener Hydrogen embrittlement of carbon steels and their welds

Hydrogen EmbrittlementHydrogen Embrittlement Technical ExtractsHydrogen Embrittlement Extract from British StandardsWhat Is Hydrogen Embrittlement?Hydrogen Embrittlement InsertionHydrogen Embrittlement in Mechanical FastenersHydrogen Embrittlement Fastener Risk ManagementHydrogen Embrittlement ReferenceFasteners at Risk, Consider Alternative Surface Coatings.De-Embrittlement Legal RequirementsHydrogen embrittlement is associated with fasteners made of carbon and alloy steels. It is usually expected to be a risk for higher tensile fasteners with hardness above 320HV. It is caused by the absorption of atomic hydrogen into the fasteners surface during the manufacture and processing, particularly during acid pickling and alkaline cleaning prior to plating, and then during actual electroplating. The deposited metallic coating entraps the hydrogen against the base metal. If the hydrSee more on fastenerdata.ukCharacteristics of Susceptible Microstructure for Hydrogen Hydrogen embrittlement of carbon steels and their welds Feb 18, 2020Hydrogen-induced cracking (HIC) susceptibility of the coarse-grained heat-affected zone (CGHAZ) of carbon steel was evaluated using implant tests and the characteristics of susceptible microstructure to HIC was investigated. Three types of carbon steel with different alloying elements were employed as base metals to vary the microstructure of the CGHAZ and implant test assemblies were File Size 71KBPage Count 11People also search for3 hydrogen 1 carbonhydrogen embrittlement failurehydrogen embrittlement pdftitanium hydrogen embrittlementhydrogen embrittlement bakingcryogenic hydrogen tankFatigue Performance of High-Strength Pipeline Steels Oct 01, 2015FY 2018 Annual Progress Report 1 DOE Hydrogen and Fuel Cells Program . Fatigue Performance of High-Strength Pipeline Steels and Their Welds in Hydrogen Gas Service . Overall Objectives Enable the use of high-strength steel hydrogen pipelines, because significant cost savings can result by implementing high-strength steels asH2 Permeability and Integrity of Steel WeldsHigh-pressure hydrogen permeation measurement system development and verification, June 2007 (complete) Baseline high-pressure hydrogen diffusion and permeation measurement with pure Iron, September 2007 (complete) Baseline study on friction stir welding of pipeline steels, December, 2007 (complete) Effect of weld microstructure on hydrogen Hydrogen embrittlement of carbon steels and their welds

Hydrogen Embrittlement Inspectioneering

What Is Hydrogen Embrittlement?Where Does The Hydrogen Come from?Inspection & MonitoringRelated TopicsTopic ToolsHydrogen Embrittlementis a form of hydrogen damagestemming from the diffusion of atomic hydrogen into certain types of metals. There are three criteria that lead to hydrogen embrittlement 1. Hydrogen, 2. High strength steels and alloys, and 3. Applied or residual stress. In the presence of hydrogen, thesehigh strength materials lose their ductile properties and become vulnerable to brittle fracture. Crack initiation and propagation can occur internally, however, most cases are present on the surface of a coSee more on inspectioneeringPeople also search forhydrogen embrittlementhydrogen embrittlement from platinghydrogen embrittlement resistant and c-sealshydrogen embittlement reliefus air force hydrogen embrittlement videohydrogen embittlement in steel3. Material Considerations when working with Hydrogen alloys, nickel and some of its alloys, as well as stable austenitic stainless steels. 2°- Hydrogen can have a direct effect on the material by degrading its mechanical properties; this effect is called hydrogen embrittlement and is specific to the action of hydrogen and some other hydrogenated gases. 3.1.11.1. Hydrogen EmbrittlementHydrogen Embrittlement of Steel - Industrial MetallurgistsAbstract This article discusses hydrogen embrittlement of carbon steel. This includes a discussion of the mechanism by which a steel becomes embrittled by hydrgogen, circumstances that lead to embrittlement, the effects of embrittlement on steel behavior, how to prevent the embrittlement, and tests for evaluating whether a steel has been embrittled.Hydrogen embrittlement in metals - Fraunhofer IWMAtomic hydrogen is able to significantly reduce the ductility of metallic raw materials. This can lead to the expected malfunction of components and is generally referred to as hydrogen brittleness. The diverse and distinct susceptibilities for hydrogen embrittlement in otherwise strong material properties limit the selection of raw materials.

Hydrogen embrittlement of carbon ste

hydrogen embrittlement in carbon steelhydrogen embrittlement in stainless steelwhat is hydrogen embrittlementhydrogen embrittlement copperhydrogen embrittlement mechanismhydrogen embrittlement photoshydrogen embrittlement heat treatmenthydrogen environment embrittlementHydrogen embrittlement of high strength, low alloy (HSLA Hydrogen embrittlement of carbon steels and their welds Jan 01, 2012Various mechanical testing methods to evaluate the H-embrittlement are discussed. The H-embrittlement of two HSLA grades and their welds is evaluated by means of the standardised disc rupture test, i.e. a cold rolled HC420LA with a ferritic matrix and a hot rolled S700MC with a matrix consisting of bainitic ferrite.III.10 Hydrogen Embrittlement of Pipeline Steels Hydrogen embrittlement of carbon steels and their welds 1 Steel B is a typical low carbon (0.05% by wt) Mn-Si-single microalloy API/Grade X70/X80 capable of producing a ferrite/ acicular microstructure. The alloy was found to perform well in sour natural gas service. 2 Steel D is a typical low carbon (0.03% by wt) Mn-Si-single microalloy API/Grade X60, a predominantly ferrite

III.5 Hydrogen Embrittlement of Structural Steels

Carbon-manganese steels are candidates for the structural materials in hydrogen gas pipelines; however, it is well known that these steels are susceptible to hydrogen embrittlement. Decades of research and industrial experience have established that hydrogen embrittlement compromises the structural integrity of steel components. This experiencePeople also askWhat is the result of embrittlement of carbon steel?What is the result of embrittlement of carbon steel?The result of hydrogen embrittlement is that components crack and fracture at stresses less than the yield strength of the metal. Embrittlement process At room temperature, hydrogen atoms can be absorbed by carbon steel alloys. The absorbed hydrogen may be present either as atomic or molecular form.Hydrogen Embrittlement of Carbon Steel Embrittlement processPeople also search forbrass valves for hydrogen gashydrogen gas valvesbuy hydrogen gasbuy hydrogen gashydrogen gas for salehydrogen gas for saledamage, steels, hydrogen, energy, steels, martensite Hydrogen embrittlement of carbon steels and their welds Hydrogen embrittlement of steels and related transition metall alloys is attributed to a variety of possible mechanisms. At room temperature, hydrogen atoms can be absorbed into the metal lattice and diffuse through the grains and other lattice defects. The absorbed hydrogen may be present either as an atomic or in recombined molecular form.

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1. it is hydrogen that embrittles steel, not the acid; 2. that the hydrogen is nascent, not molecular; 3. it is diusible hydrogen that embrittles. 1, so the phenomenon is re-versible; 4. the eusion of diusible hydrogen from the steel leads to frothing(bub-bles); 5. that stronger steel is more susceptible to embrittlement than softer versions.People also search fordoes sulfuric acid make metal brittlecementite crystalline microstructure definitionchemical embrittlementpopular musical instrumentsexport of electrical energy -line conditionerHydrogen Embrittlement in Fasteners - Bolt CouncilFundamentals of hydrogen embrittlement in steel fasteners S. Brahimi . 1. General description . A typical definition for hydrogen embrittlement in literature and consensus standards is as follows. Hydrogen Embrittlement (HE) a permanent loss of ductility in a metal or alloy caused b yPeople also search forembrittlementcalculation of impact strength in izod testembrittlement testing on steel astm a 143low carbon steel propertydifferentiate between asd and lrfd methodcarbon element conductivityHydrogen Embrittlement - NACESources of hydrogen causing embrittlement have been encountered in the making of steel, in processing parts, in welding, in storage or containment of hydrogen gas, and related to hydrogen as a contaminant in the environment that is often a by-product of general corrosion. It is the latter that concerns the nuclear industry.

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Feb 01, 2011Embrittlement<br />Hydrogen embrittlement is a type of failure that affects almost all metals and alloys. When hydrogen is present, materials fail at load levels that are very low compared with those that a hydrogen-free material can sustain. And a lot of scientists have studied on this field for many years.<br />. 13.People also search forhow to detect hydrogen embrittlementcementite crystalline microstructure definitionhydrogen embrittlement bakinghydrogen embrittlement failurehydrogen embrittlement in steelhydrogen embrittlement stainless steelHydrogen Compatibility of Materials - Energy Provide context for hydrogen embrittlement and hydrogen compatibility of materials Distinguish embrittlement, compatibility and suitability Hydrogen embrittlement of carbon steels and their welds dissolving into metals and affecting their properties. 5 Hydrogen embrittlement of carbon steels and their welds Carbon steels 1100 2) Low-alloy steels 12xx 3) High-alloy ferritic steels 14xx-18xx Hydrogen embrittlement of carbon steels and their welds People also search forhydrogen degradation on plasticshydrogen flammability rangehydrogen design piping air productshydrogen gas tankshydrogen gas valvesfrequency of chirpHydrogen Embrittlement Metallurgy for DummiesHydrogen embrittlement is the process by which various metals, most importantly high-strength steel, become brittle and fracture following exposure to hydrogen. Hydrogen embrittlement is often the result of unintentional introduction of hydrogen into susceptible metals during forming or finishing operations. Hydrogen embrittlement is also used to describe the formation of zircaloy hydride. Use of the term in this context is common in the

People also search forhydrogen embrittlement bakinghydrogen embrittlement carbon steelhydrogen embrittlement failurehydrogen embrittlement in steelhydrogen embrittlement pdftitanium hydrogen embrittlementDefects - Hydrogen Cracks in Steels - Prevention and Best Hydrogen embrittlement of carbon steels and their welds

The recommended levels of preheat for carbon and carbon manganese steel are detailed in EN 1011-2 2001 (which incorporates nomograms derived from those in BS 5135 1984). The preheat level may be as high as 200°C for example, when welding thick section steels with a high carbon equivalent (IIW CE) value. Interpass and post-heatingPeople also search forhydrogen embrittlement corrosionhydrogen embrittlementhydrogen embrittlement pdfhydrogen embrittlement failure semhydrogen embrittlement from platinghydrogen embrittlement thread forming scrAssessing Steel Pipeline and Weld Susceptibility to Hydrogen embrittlement of carbon steels and their welds fatigue crack growth in steels in high-pressure H. 2. gas Industrially relevant pipeline grades Representative service environment Fatigue crack growth data will be the basis for requirements of the ASME B31.12 code Assess variables that influence hydrogen embrittlement in pipeline steels Welds Microstructural bandingPeople also search forhydrogen embrittlement in aluminumhydrogen embrittlement photoshydrogen embrittlementhydrogen embrittlement black oxidehydrogen embrittlement pdfhydrogen embrittlement in pressure vesselsHydrogen Embrittlement - an overview ScienceDirect TopicsLastly, hydrogen embrittlement can occur through absorption of hydrogen from the environment, such as from acid rain and deposition of acidic bi-products from heavy industry. This type of embrittlement, generally referred to as environmental cracking, can affect high strength and other high carbon steels of sufficient hardness.

People also search forhydrogen embrittlement in boltshydrogen embrittlement carbon steelhydrogen embrittlement preventionhydrogen embrittlement steelhydrogen embrittlement testhydrogen embrittlement failuresHydrogen Embrittlement of Pipeline Steels Causes and Hydrogen embrittlement of carbon steels and their welds

Hydrogen embrittlement of pipelines and remediation (mixing with water vapor?) Assessment of hydrogen compatibility of the existing natural gas pipeline system for transporting hydrogen Suitable steels, and/or coatings, or other materials to provide safe and reliable hydrogen People also search forhydrogen embrittlement in stainless steelhydrogen embrittlement carbon steelhydrogen embrittlement steelhydrogen embrittlement bakinghydrogen embrittlement failurehydrogen embrittlement heat treatmentHydrogen Embrittlement of Pipeline Steels Causes and Hydrogen embrittlement of carbon steels and their welds Hydrogen enhances the mobility of dislocations and decreases the separation distance between dislocations in a pile-up Hydrogen restricts cross-slip by stabilizing edge character dislocations. Hydrogen enhances crack propagation rates Hydrogen reduces the stacking-fault energy of 310S stainless steel by 20%People also search forhydrogen embrittlement mechanismhydrogen embrittlement steeltemper embrittlement of steelhydrogen embrittlement carbon steelhydrogen embrittlement failurehydrogen embrittlement fastenersEmbrittlement FastenalHydrogen embrittlement (HE) is defined by ASTM F2078 as a permanent loss of ductility in a metal or alloy caused by hydrogen in combination with stress, either externally applied or internal residual stress. Hydrogen embrittlement is commonly associated with high-strength steels including fasteners made of carbon and alloy steels.

People also search forhydrogen embrittlement pdftitanium hydrogen embrittlementhydrogen embrittlement bakinghydrogen embrittlement in steelhydrogen embrittlement problemshydrogen embrittlement carbon steelHydrogen Embrittlement and Low Hydrogen Consumables

Higher strength steel increases rigidity and therefore stresses. Allow the Hydrogen to diffuse out of the steel. Keep it warm, again preheating will increase the time for diffusion. Allow it to cool slowly after welding, pack it in sand. Use low hydrogen consumables. Use austenitic steel consumables (Stainless E309, E312, E308Mo, E307).People also search forhydrogen embrittlement platinghydrogen embrittlement problemshydrogen embrittlement in stainless steelhydrogen embrittlement testhydrogen embrittlement in aluminumhydrogen embrittlement thread forming scrHydrogen Embrittlement of Steel - NISTHydrogen Embrittlement of Steel Review of the Literature R. W. Buzzard and H. E. Cleaves . A review of the literature establishes the fact that steel absorbs hydrogen on exposure to the gas at an elevated temperature or in the environment of a chemical reaction. Initial concern of hydrogen so absorbed centered in the tendency to causePeople also search forhydrogen embrittlement problemshydrogen embrittlement ndthydrogen embrittlement black oxidehydrogen embrittlement from chrome platinghydrogen embrittlement in aluminumhydrogen embrittlement mechanismGaseous Hydrogen Embrittlement of Materials in Energy Hydrogen embrittlement of carbon steels and their welds Jan 16, 201214.2 Hydrogen solubility and diffusivity in carbon steels. 14.3 Mechanical properties of carbon steels and their welds in high pressure hydrogen. 14.4 Important factors in hydrogen gas embrittlement. 14.5 Hydrogen embrittlement mechanisms in low strength carbon steels. 14.6 Future research needs. 14.7 Conclusions. 14.8 Sources of further Hydrogen embrittlement of carbon steels and their welds

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The permeability and solubility of hydrogen in 10xx carbon steels are mildly affected by carbon content and microstructure [2]. In a single study, permeation experiments were conducted on six carbon steels over the temperature range 500 to 900 K and gas pressure range 0.01 to 0.7 MPa [2].People also search forhydrogen permeability of steel diskshydrogen diffusion in steel vesselshydrogen diffusion in steel from waterhydrogen diffusion in steel water vesselshydrogen empbrittlementmagnetic permeability of steel chartWhat is Hydrogen Embrittlement? - Causes, Effects and Hydrogen embrittlement of carbon steels and their welds Hydrogen Embrittlement occurs when metals become brittle as a result of the introduction and diffusion of hydrogen into the material. The degree of embrittlement is influenced both by the amount of hydrogen absorbed and the microstructure of the material.People also search forhydrogen sulfide damage in concrete pipefrequency of chirphydrogen embrittlement bakinghydrogen embrittlement carbon steelhydrogen embrittlement failurehydrogen embrittlement in steelBEFORE YOU CONTINUEHydrogen embrittlement (HE) is a process resulting in a decrease in the fracture toughness or ductility of a metal due to the presenceof atomic hydrogen. In addition to pure hydrogen gas as a direct source for the absorption of atomic hydrogen, the damaging effect can manifest itself

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14 Hydrogen embrittlement of carbon steels and their welds 526 K. Xu, Praxair, USA 14.1 Introduction 526 14.2 Hydrogensolubility and diffusivity in carbon steels 528 14.3 Mechanical properties ofcarbon steels and their welds in high pressure hydrogen 529 14.4 Importantfactors in hydrogen gas embrittlement 543 14.5 Hydrogenembrittlement Hydrogen embrittlement of carbon steels and their welds People also search forwhat is hydrogenwhat is hydrogen made ofwhat is hydrogen metal? nonmetalwhat is manufacturing picklingwhat is automobile batters containhydrogen embrittlement failure semEmbrittlement of steels - TEC EurolabHydrogen embrittlement. Hydrogen atoms diffuse readily into steel during processes such as acid pickling, electroplating, arc welding with moist or wet electrodes, and exposure to hydrogen sulfide. After stressing, delayed brittle fracture may occur, particularly in higherstrength steels.Price $350Hydrogen Embrittlement in High-Strength Steels - Simp Hydrogen embrittlement of carbon steels and their welds Hydrogen embrittlement is a significant permanent loss of strength that can occur in some steels when hydrogen atoms are present in the steel and stress is applied. Embrittlement occurs as hydrogen atoms migrate to the region of highest stress and cause microcracks. When a crack forms, the hydrogen then migrates to the tip of the crack (Figure Hydrogen embrittlement of carbon steels and their welds

Technical Reference on Hydrogen Compatibility of

embrittlement. Hydrogen has a negligible effect on yield strength of type 304 stainless steel that is free of martensite and carbide precipitation, but slightly lowers the ultimate strength. Strain rate does not have a large impact on hydrogen embrittlement of type 304 stainless steel with internal hydrogen at conventional rates, e.g., <0.01!s Hydrogen embrittlement of carbon steels and their welds What is an Acid Embrittlement? - Definition from Hydrogen embrittlement of carbon steels and their welds Sep 24, 2013Acid embrittlement is a process in which brittleness is induced in metals, especially steel, when immersed in acidic solutions. Acids contain hydrogen, and when these metals are immersed in acids, they absorb hydrogen, becoming brittle, and can readily fracture when subjected to stress. The presence of hydrogen in the metal structure increases Hydrogen embrittlement of carbon steels and their welds sciencedirectJan 01, 2012Hydrogen embrittlement of carbon steels and their welds Hydrogen embrittlement of carbon steels and their welds Cited by 8Publish Year 2012Author K. XuMechanical properties of carbon steels and their welds in high pressure hydrogen. Hydrogen embrittlement of carbon steels is commonly evaluated by hydrogen effect on tensile properties, fatigue crack growth rate and fracture toughness. Chapter 7 discusses different experimental methods in detail. The following standard test methods have been employed to evaluate the susceptibility to hydrogen embrittlement in high pressure hydrogen:People also search forhydrogen embrittlement carbon steelhydrogen embrittlement failurehydrogen embrittlement in steelhydrogen embrittlement problemshydrogen embrittlement testhydrogen embrittlement test equipmentHydrogen embrittlement of stainless steels and their welds Hydrogen embrittlement of carbon steels and their welds Jan 01, 2012where c L is the hydrogen concentration in the unstressed lattice, c S is the concentration of hydrogen in the lattice subjected to a hydrostatic stress ¯ = ii / 3, and V H is the partial molar volume of hydrogen in the lattice, which for steel is of the order of 2 cm 3 /mol . The effect of stress on hydrogen dissolved in the lattice is greatest at low temperature (due to the positive exponential term

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