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Picture for Effect Of Graphene Incorporation On Erosion-Corrosion Performance Of Electroless Ni-P Coatings
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Effect Of Graphene Incorporation On Erosion-Corrosion Performance Of Electroless Ni-P Coatings

Product Number: 51321-16723-SG
Author: Ahmad Raza Khan Rana; Zoheir Farhat
Publication Date: 2021
$20.00
Picture for Effect of H?S on the Corrosion Behavior of Pipeline Steels Under Supercritical CO? Environment
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Effect of H?S on the Corrosion Behavior of Pipeline Steels Under Supercritical CO? Environment

Product Number: 51315-5927-SG
ISBN: 5927 2015 CP
Author: Yoon-Seok Choi
Publication Date: 2015
$20.00
Picture for Effect Of H2S On CO2 Corrosion Of Mild Steel In HPHT Conditions
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Effect Of H2S On CO2 Corrosion Of Mild Steel In HPHT Conditions

Product Number: 51321-16622-SG
Author: Yoon-Seok Choi/ Fernando Farelas/ Luciano Paolinelli/ Srdjan Nesic/ Ahmad Zaki B Abas/ Azmi Mohammed Nor/ Muhammad Firdaus Suhor
Publication Date: 2021
$20.00
Picture for Effect of H2S on the Corrosion and Cracking Behavior of Welded API 5L X65 Steel in Supercritical CO2
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Effect of H2S on the Corrosion and Cracking Behavior of Welded API 5L X65 Steel in Supercritical CO2

Product Number: 51321-16407-SG
Author: Shiladitya Paul
Publication Date: 2021
$20.00
Picture for Effect of Hydrogen Flux on the Plasticity and Damage Mechanisms of Martensitic Steels
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Effect of Hydrogen Flux on the Plasticity and Damage Mechanisms of Martensitic Steels

Product Number: 51319-12739-SG
Author: Livia Cupertino Malheiros
Publication Date: 2019
$20.00

The depletion of easily exploitable oil and gas resources increases the demand for high strength steels able to withstand the high pressures of deeper offshore exploitation. These steels need also to resist a sour environment that enables hydrogen stress cracking. Hydrogen embrittlement is the consequence of a complex mechanism involving adsorption/absorption diffusion and trapping phenomena. Although hydrogen dramatically affects the fracture the mechanisms responsible for generating ductile andbrittle hydrogen-induced fracture surfaces are not well understood. Therefore it is critical to study the impact of mobile and trapped hydrogen on both ductile and brittle fracture of martensitic steels. The present work combines a new design of permeation testing under tensile loading and FEM modelling to investigate the interactions between hydrogen and damage mechanisms focused on plasticity. More precisely the impact of mobile and trapped hydrogen on ductile and brittle fracture of martensitic steels is inspected using a local approach of fracture and a specific analysis of defects evolution under hydrogen flux (vacancies and dislocations). Damage investigation was performed for specimens submitted to several mechanical states (different notch shapes) and hydrogen concentrations (pre-charged and under hydrogen flux). The results showed that the trapped hydrogen favors a ductile fracture while the mobile hydrogen promotes a quasi-cleavage damage at a scale of the martensitic laths. Further analysis revealed that whereas the trapped hydrogen promotes the germination and growth of voids around inclusions and precipitates the mobile hydrogen enhances decohesion along interfaces. The role of plasticity in both fracture mechanisms wasinvestigated. It has been found that plasticity is crucial not only for the ductile fracture but also to the quasi-cleavage process. EBSD images at the quasi-cleavage regions reveal that the majority of the fracture paths occurred on slip planes emphasizing the plasticity contribution to this brittle fracture.

Picture for Effect of Laser Marking on Corrosion Performance of Metallic Materials in Different Environments
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Effect of Laser Marking on Corrosion Performance of Metallic Materials in Different Environments

Product Number: 51321-16495-SG
Author: Thanh Nam Vu/ Karthik Krishnan/ Chad Glaesman
Publication Date: 2021
$20.00
Picture for Effect of Low Frequency on the Fatigue Response of Wellhead Extension Joint Welds Exposed to Simulated Seawater with Cathodic Protection
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Effect of Low Frequency on the Fatigue Response of Wellhead Extension Joint Welds Exposed to Simulated Seawater with Cathodic Protection

Product Number: 51319-13071-SG
Author: Adam Rowe
Publication Date: 2019
$20.00

This work considers wellhead extension joint welds for high-pressure deepwater Gulf of Mexico prospects with a design shut-in tubing pressure (SITP) above 15000 psi. The structural welds joining 75K 8630M low pressure wellhead housing (LPWH) forgings to API 5L Grade X80M PSL 2 conductor casing are expected to be fatigue-sensitive due to water depths approaching 6000 ft. and substantial estimated weight of a 20K BOP stack. Cyclic loading is expected to be from wave‑induced motions (WIM) and vortex‑induced vibration (VIV). The wellhead extension joints extend 10 to 15 ft. above the mudline and will be exposed to seawater as well as cathodic protection when the wellhead is connected to either the BOP stack or the tubing head spool and subsea tree.The present work considered both S-N and fracture mechanics based designs. Fatigue curves such as those in BS (British Standard) 7608 are not yet proven for structural steels with yield strengths in excess of 400 N/mm2 (58 ksi) in the presence of cathodic protection and fatigue crack growth laws such as those in BS 7910 for steels in a marine environment are only applicable to materials with yield strengths less than 600 N/mm2 (87 ksi). Materials in the subject assemblies may have yield strengths in excess of 690 N/mm2 (100 ksi) so both S-N and fatigue crack growth rate (FCGR) testing in a simulated seawater with cathodic protection environment were determined to be appropriate. This paper describes the environmental fatigue testing of welds and the relationship between the test data established fatigue curves and published literature. Tests were performed in a 3.5% NaCl solution at 40 °F with pH adjusted to 8.2 and an applied potential of -1100 mV Ag/AgCl. Frequency scans were conducted in several weld microstructures to assess growth rate sensitivity of each microstructure to cyclic frequency and the fatigue response at the low end of the frequency range was explored in greater detail.

Picture for Effect Of Nb Addition And Processing Path On The KISSC Of A Low Alloyed OCTG Steel
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Effect Of Nb Addition And Processing Path On The KISSC Of A Low Alloyed OCTG Steel

Product Number: 51321-16696-SG
Author: Marc-Antoine Thual; Koen Bracke; Nuria Sanchez; Steven G. Jansto
Publication Date: 2021
$20.00