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Keywords: hydrogen concentration
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Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16887
...) technique was used to evaluate the environmental hydrogen embrittlement susceptibilities (EHE) of the materials by in-situ charging of hydrogen at a cathodic potential of -1.2VSCE. Microstructural characterization was performed using TEM. Stress and hydrogen concentration distributions at the time...
Proceedings Papers
L. R. Cupertino Malheiros, F. Decultieux, J. Creus, X. Feaugas, F. Thébault, J. Bouhattate, A. Oudriss, D. Guedes
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12739
... mechanisms in a martensitic steel. Damage investigation was performed for specimens with different notch geometries and hydrogen concentrations. The results show that trapped hydrogen favors ductile fracture while the mobile hydrogen conduces to a quasi-cleavage at a scale of martensitic laths. The trapped...
Proceedings Papers
Elizabeth Trillo, James Dante, Brian Chambers, Manuel Gonzalez, Brian Somerday, Michael A. Miller, Xin Long
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12908
... to address the potential cracking susceptibility, a study was performed to understand fundamental parameters such as steady state hydrogen permeation flux, hydrogen concentrations and hydrogen trap binding energies of the high strength steel under charging conditions. Electrochemical permeation testing...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12856
..., particularly those in deepwater, the wellhead exposure temperature is typically 40°F (4°C). Upstream Oil & Gas concentration OCTG oilfield chemistry Corrosion Management low alloy steel texas 77084 Corrosion Inhibition H2S management hydrogen concentration steel lower temperature...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12916
... sour environment. It was found that hydrogen diffusion inside the metal is significantly affected by subsurface hydrogen concentration, stresses (including global and local stress such as notch or crack tip stress) and material plasticity. For example, metal subsurface hydrogen concentration normally...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10851
... H2S management concentration low alloy steel steel crack tip crack propagation mechanism specimen kissc value fracture toughness texas 77084 Houston hydrogen concentration Publication Division permission manuscript Fracture Toughness Assessment of the Susceptibility for Sulfide...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-8988
... Upstream Oil & Gas Publication Division hydrogen concentration texas 77084 hydrate alkalinity concentration magnetite condensate Boiler oilfield chemistry well integrity hydrogen study reaction boiler system manuscript passivation hydrogen analysis feedwater permission Houston...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9328
... diffusion and hydrogen trapping was developed. It simulates the stress and strain fields and the hydrogen concentrations at the vicinity of a crack on a NACE TM0177 tensile specimen. A second model is also proposed, based on the cohesive zone theory for calculating the propagation of a crack inside a NACE...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9548
.../ionic form and may diffuse out of the weld region into the atmosphere during weld cooling oilfield chemistry hydrogen bakeout Production Chemistry Corrosion Inhibition H2S management concentration bakeout time hydrogen concentration bakeout parameter texas 77084 steel Publication...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7847
... and/or dislocation in materials should be taken into account to enhance the resistance to HE. 7,8,9,10,11,12 Upstream Oil & Gas hydrogen concentration Publication Division Corrosion Inhibition H2S management test specimen texas 77084 alloy manuscript oilfield chemistry Corrosion Management...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5597
.... Post fracture analysis The post fracture analyses consisted of hydrogen measurements, fracture surface characterization and reduction of area (RA) measurements. Only two samples of each alloy from Part 1 of the testing was examined by the hydrogen melt extraction technique. The hydrogen concentration...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-3892
... 77084 Publication Division permission hydrogen concentration specimen mechanical property manuscript South Creek Drive hydrogen embrittlement SSSV grade material ksi grade material Houston fracture surface Hydrogen Embrittlement Failure of a Precipitation Hardened Nickel Alloy...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2613
... oilfield chemistry Corrosion Management hydrogen concentration Corrosion Inhibition Upstream Oil & Gas concentration Modeling & Simulation H2S management sour environment Production Chemistry frequency plateau fatigue crack growth rate crack tip texas 77084 crack growth...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2257
.... hydrogen concentration texas 77084 crack tip concentration hydride reorientation cathodic charging hydride Reorientation three-point-bent beam specimen permission manuscript South Creek Drive hydraulic fracturing electrode hydride reorientation map Publication Division specimen Houston...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2384
...% of yield stress (R p0.2 ). The hydrogen concentration of the specimens was also measured and the occurrence of HISC needs a certain hydrogen concentration. metals & mining H2S management average hydrogen concentration specimen Corrosion Inhibition hydraulic fracturing hydrogen...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1152
... hydrogen concentration groundwater permission Houston threshold manuscript crack growth crack tip Corrosion Inhibition H2S management Publication Division pipeline steel crack growth rate South Creek Drive A Phenomenological Model for Environmentally Assisted Cracking of Pipeline Steels...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1161
... into a flow of Argon gas. Measurement of the hydrogen concentration using thermal conductivity allows for monitoring changes in corrosive conditions and sulfide scale integrity. Preliminary results are presented for API 5CT L80 steel. Keywords: sour corrosion, sulfide stress cracking, thermal wells, hydrogen...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11104
... metals & mining H2S management steel membrane experiment Production Chemistry interstitial hydrogen concentration membrane hydrogen diffusivity Corrosion Inhibition Upstream Oil & Gas irreversibly quasi-steady state cathodic charging oilfield chemistry hydrogen charging...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11209
... Hydrate Remediation hydrate inhibition Upstream Oil & Gas remediation of hydrates concentration hydrogen concentration deaerated water Loading Rate alloy hydrogen fracture toughness crack growth shield gas hydrogen content hydrogen level specimen weld pad buildup environmental...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10297
... CO 2 , HCO 3 - , pH, sulfate and chloride, sulfide and organics (9,10-anthraquinone-2,6-disulfonate (AQDS), Laurentian humic acid (LHA) and Laurentian fulvic acid (LFA)). Sufficient hydrogen concentration was critical for the susceptibility of near-neutral pH SCC. Hydrogen concentration...
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