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Keywords: composition
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Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-456
... stringent from a safety perspective. The composite properties required for a linepipe are guaranteed by controlling the metallurgical structure. For example, strength ranging from X52 X65 is required for sour-resistant linepipes. To guarantee good SSC performance, hardness should be limited to 250 Hv...
Proceedings Papers
Assessment of the Necessary Nickel Content in High-Nickel Steel for Liquefied Hydrogen Storage Tanks
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-620
... steel. The cryogenic toughness of 15% Ni steel at 20 K was superior to that of 12% Ni steel, and both satisfied the K Ic (J) requirement of 132 (equation), likely because 15% Ni steel has lower yield stress than 12% Ni steel at 20 K. The composition range of high-Ni steels for liquefied hydrogen...
Proceedings Papers
Christoph Bleicher, Steffen Schönborn, Sebastian Böhlert, Lutz Kleinsorge, Jörn Klüss, Marcel Nürnberg
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-449
..." is to check the influence of chemical composition, casting process parameters, wall thickness as well as the resulting local microstructure in combination with seawater on the fatigue strength of aluminum bronze and to compare those data with the given standards for a material certification. In further steps...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-450
... ABSTRACT Carbon monoxide (CO) contained in hydrogen gas mitigates hydrogen embrittlement (HE). This CO effect can be affected by the chemical composition of the steel surface. This study investigated the effect of chromium (Cr) on Cr-rich and Cr-low materials. During the fracture toughness...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-233
... of trajectory measurement in the geodetic coordinate system of underwater high-speed weapons. The system composition, working principle, and test results are introduced, and the measurement errors are analyzed. INTRODUCTION Testing is an essential tool in the process of product development, testing...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-4110
... toughness composition reaction welding Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference www.isope.org Rhodes, Greece, June 20 25, 2021 Copyright © 2021 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-82-1; ISSN 1098...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1167
... conditions, natural gas utilization technology is being developed as an economical alternative to developing small and medium-sized gas fields with less than 3 million tons per year. gas monetization methane climate change air emission ship us government container supply chain mib composition...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1171
... Katsuhiko Suzuki Japan Agency for Marine-Earth Science and Technology Yokosuka, Japan ABSTRACT model and understanding formation processes help effective, reliable, and economical methods on exploration, excavation, processing, and this We describe the regional and micro-scale variability in composition...
Proceedings Papers
Andrey V. Koshurnikov, Vladimir E. Tumskoy, Vladimir V. Skosar, Yaroslav O. Efimov, Konstantin A. Kornishin, Alexander T. Bekker, Yuri G. Piskunov, Nikita Ya. Tsimbelman, Denis A. Kosmach
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-598
...-geological structure and cryogenic processes, along with the presence of surface gas, are decisive geotechnical features of the shallow-water areas of the Arctic shelf, accounting and assessment of which are critically important at the first stages of development. composition southwestern part...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-589
... ABSTRACT This paper aims to maximize the efficiency of low transformation temperature (LTT) filler alloys by changing composition. The changes of phase expansion were investigated using Cr eq /Ni eq ratio as a parameter. And the optimal Ms level showing the maximum reduction of residual...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-322
..., the transport times are typically estimated by using modelled gas velocity as input to batch-tracking methods or by solving the advection equation (Chaczykowski et al., 2018). The accuracy of the estimated transport times can be determined by comparing measured and modelled composition at the outlet...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-278
..., chemical composition of SBHS is well balanced to ensure good weldability and workability while maintaining high material strength. Previous investigations on tensile strength, load carrying capacity and residual stress of SBHS500 were conducted (Hashimoto, Ono and Okada, 2013; Ono, Ishikawa, Hashimoto...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-427
... ABSTRACT The preheating flame gas composition influence during the oxyhydrogen cutting process is examined carrying out spot heating tests. An inverse heat conduction analysis is applied for these test results to determine the local heat transfer parameters influence. To measure the gas...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-160
... thick high strength steel with excellent crack arrestability has been desired in the field of large container ship building industry. composition requirement microstructure characterization crack arrest steel plate wellbore integrity steel plate class crack arrest steel plate container...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-717
... precipitate haz strength 9 test result tensile strength metals & mining high strength 9 weld metal composition requirement mechanical property Weldability Evaluation of a New High Strength 9% Ni Steel for Cryogenic Applications Wenkao Hou1 George J. Fraley1, Ronald Gollihue2 Fred B...
Proceedings Papers
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-214
... im plan american petroleum institute regulation riser corrosion oilfield chemistry materials and corrosion damage mechanism upstream oil & gas subsurface corrosion jurisdiction steel composition pipeline corrosion corrosion management us government metallurgy concentration...
Proceedings Papers
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-604
... microstructure composition transition temperature corrosion management corrosion inhibition workplace hazard production chemistry center segregation hardness h2s management linepipe ishikawa sour linepipe resistance hardness toughness segregation ratio oilfield chemistry steel...
Proceedings Papers
Hiroshi Amakawa, Yusuke Fukami, Junji Torimoto, Tatsuo Nozaki, Koichi Iijima, Akira Usui, Katsuhiko Suzuki
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-722
...) concentration and isotopic composition were determined for a location near the Takuyo-Daigo Seamount in the northwest Pacific Ocean. The Nd isotopic composition profile is similar to the surface layer Nd isotopic composition of ferromanganese crusts collected from the Takuyo-Daigo Seamount. This confirms...
Proceedings Papers
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-744
...). The mixed refrigerant (MR) for the pre-cooling cycle also gives better operational flexibility with the variation of feed gas conditions by changing the composition (Teles et al., 2010). However, the large liquid inventory of hydrocarbons in SMR and DMR processes will increase the risk of fire...
Proceedings Papers
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-305
... capital cost gas monetization composition base case lng mixed refrigerant gross profit efficiency lng ngl coproduction process equipment count artificial intelligence liquefaction efficiency feed composition Design and optimization of an integrated LNG/NGL coproduction process for offshore...
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