... pwht condition kawabata hardness weibull distribution grain boundary equation fusion zone tank Proceedings of the Thirty-fifth (2025) International Ocean and Polar Engineering Conference Seoul/Goyang, Korea, June 1-6, 2025 Copyright © 2025 by the International Society of Offshore and Polar...

... Yoshimura Nippon Steel Corporation Kimitsu R&D Lab. Kimitsu, Kimitsu City, Chiba, Japan ABSTRACT In 2013, sulphide stress cracking (SSC) occurred in linepipes with a local hard zone in the Kashagan oil field, resulting in gas leaks. Consequently, a guideline stipulating the hardness of the surface layer...

... microstructure fracture toughness hydrogen embrittlement hardness specimen girth weld pipeline steel figure 1 placement embrittlement martin Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024...

... the material testing of the welding consumable (Lincoln, Denise Leech, 2020) The yield strength of the X70 was lower than the X65 material since the wall thickness was reduced from 40 mm to 24 mm by machining. Vickers hardness measurements (HV5) were carried out for the parent materials, HAZ and WM at the sub...

... organisation eurocode 3 reduction hardness Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-78-4; ISSN 1098-6189...

... part is built to carry out the detailed analysis on the contact pressure. The influences of seal axial compression, rubber hardness and axial seal gap on the sealing pressure are analyzed. Simulation results show that with the increase of axial compression, the contact pressure of the sealing surface...

... investigation mooring system wind energy martensite untempered martensite upstream oil & gas sub-sea system hardness proceedings martensite layer sensitivity europe government chain link surface layer crack growth stern roller strength gabrielsen microstructure crack initiation area...

... failure mechanism gabrielsen high strength upstream oil & gas wind energy high-strength mooring chain martensite stern roller mooring system anchor incident standard update installasjoner untempered martensite consideration operation proceedings ndteringskonferansen hardness mobile...

... geologist united states government bar frame structure earth tank embankment upstream oil & gas root system decomposed granite soil slope reinforcement synergistic effect fundamental experiment container geology frame structure hardness broad-leaved tree frame structure...

... hardness microstructure molten zone heat source in-service welding temperature distribution international pipeline conference gmaw process assisted Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023...

... welding hacc proceedings transformation test piece microstructure bead hardness hydrogen hydrogen concentration high strength steel inspection plastic strain steel fusion zone simulation prediction diffusion ABSTRACT Hydrogen-assisted cold cracking (HACC) is one...

... ABSTRACT Sulfide stress cracking (SSC) resistant property is required for the linepipe produced by Thermo-Mechanical Controlled Processing (TMCP) which balances strength and toughness of materials and giving an economical benefit. In designing sour linepipe materials, lowering surface hardness...

... Abstract In order to ease processing Vallourec developed a new low carbon alloying concept for seamless pipes which reduces the sensitiveness of hardness cracks and increase the procedure-related welding security. This leads on the one hand to a wider range of welding parameters...

... Abstract In designing sour linepipe using Thermo–Mechanical Controlled Processing (TMCP), lowering surface hardness is one of the most important points to prevent sulfide stress cracking (SSC). In the recent studies, it was found that surface hardness should be controlled to be lower value...

... boundary seamless line pipe specimen oilfield chemistry partial pressure corrosion inhibition hardness Large OD Seamless Line Pipes for Low Temperature and Sour Service Applications A. Paggi, E. Paravicini Bagliani, Ph. Darcis Tenaris Pipeline Technology, Dalmine S.p.A. Dalmine (BG), Italy...

... are the following: It does not require a large quantity of material - a clean and flat sample surface is enough to generate a large set of data; and The measurement is non-destructive in nature as the impression is generally confined to a small surface region of the sample. hardness undrained shear...

... material design should be needed in the production of Grade X65 UOE sour linepipe steels for preventing SSC. This paper firstly summarizes the material design concepts for controlling SSC resistant property. For ensuring SSC resistant property, surface hardness control near the inner surface area of pipe...

.... damage mechanism specification hardness upstream oil & gas production chemistry riser corrosion incident us government pipeline corrosion oilfield chemistry substitution flowline corrosion well integrity inspection isometric api rp 578 subsurface corrosion metallurgy stainless steel...

... subsea system weldability hardness upstream oil & gas welding drilling equipment pipe application requirement Weldability of High Toughness X100 Seamless Pipes with a New Low Carbon Alloying Concept for Arctic Offshore Structural Applications Stephan Scherf 1, Silke Harksen 1, Ralf Hojda 1...

... hardness. The prolonged dwell time at high-temperature leads to a significant decrease of the hardness in the metal of heat affected zone which is probably caused by the dissolution of the hardening particles. The dependence between yield strength and hardness of 6082 alloy is obtained which can be used...