Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steels

There is a growing need to develop high-performance linepipes owing to the accelerated resource depletion attributable to the increasing interest in mining in extreme environments. (Ti, Mo)C precipitation can help secure the strength, low-temperature toughness, and sulfide stress corrosion cracking...

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Main Authors: Seoyoon Gong, Seungon Lim, Kyu-Tae Kim, Yong-Jae Yu, S.E. Shin
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785424028746
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author Seoyoon Gong
Seungon Lim
Kyu-Tae Kim
Yong-Jae Yu
S.E. Shin
author_facet Seoyoon Gong
Seungon Lim
Kyu-Tae Kim
Yong-Jae Yu
S.E. Shin
author_sort Seoyoon Gong
collection DOAJ
description There is a growing need to develop high-performance linepipes owing to the accelerated resource depletion attributable to the increasing interest in mining in extreme environments. (Ti, Mo)C precipitation can help secure the strength, low-temperature toughness, and sulfide stress corrosion cracking (SSCC) resistance required for linepipes. In this study, high-strength low-alloy (HSLA) steels with (Ti, Mo)C precipitation and without Ti and Mo were fabricated to analyze the effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and SSCC resistance of linepipes. The (Ti, Mo)C precipitation behavior varied and caused differences in the phase fraction, grain size, and dislocation density. Such differences in the microstructure improved the strength and low-temperature impact toughness. The SSCC resistance was significantly improved. In conclusion, (Ti, Mo)C precipitation has the potential to improve the properties required for fabricating linepipes.
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series Journal of Materials Research and Technology
spelling doaj-art-b3394b7930614ee482a52c9b79c77dc52025-01-19T06:25:17ZengElsevierJournal of Materials Research and Technology2238-78542025-01-0134348358Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steelsSeoyoon Gong0Seungon Lim1Kyu-Tae Kim2Yong-Jae Yu3S.E. Shin4Department of Advanced Materials Engineering, Sunchon National University, Suncheon, 57922, Republic of KoreaDepartment of Advanced Materials Engineering, Sunchon National University, Suncheon, 57922, Republic of KoreaHot-rolled Coil Development Team, Hyundai-steel, 1480 Buckbusaneop-ro, Songak-Eup, Dangjin-Si, Chungnam, 31719, Republic of KoreaHot-rolled Coil Development Team, Hyundai-steel, 1480 Buckbusaneop-ro, Songak-Eup, Dangjin-Si, Chungnam, 31719, Republic of KoreaDepartment of Advanced Materials Engineering, Sunchon National University, Suncheon, 57922, Republic of Korea; Corresponding author.There is a growing need to develop high-performance linepipes owing to the accelerated resource depletion attributable to the increasing interest in mining in extreme environments. (Ti, Mo)C precipitation can help secure the strength, low-temperature toughness, and sulfide stress corrosion cracking (SSCC) resistance required for linepipes. In this study, high-strength low-alloy (HSLA) steels with (Ti, Mo)C precipitation and without Ti and Mo were fabricated to analyze the effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and SSCC resistance of linepipes. The (Ti, Mo)C precipitation behavior varied and caused differences in the phase fraction, grain size, and dislocation density. Such differences in the microstructure improved the strength and low-temperature impact toughness. The SSCC resistance was significantly improved. In conclusion, (Ti, Mo)C precipitation has the potential to improve the properties required for fabricating linepipes.http://www.sciencedirect.com/science/article/pii/S2238785424028746Linepipe steel(TiMo)C precipitationSulfide stress corrosion cracking resistanceMicrostructure
spellingShingle Seoyoon Gong
Seungon Lim
Kyu-Tae Kim
Yong-Jae Yu
S.E. Shin
Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steels
Journal of Materials Research and Technology
Linepipe steel
(Ti
Mo)C precipitation
Sulfide stress corrosion cracking resistance
Microstructure
title Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steels
title_full Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steels
title_fullStr Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steels
title_full_unstemmed Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steels
title_short Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steels
title_sort effects of ti mo c precipitation on the microstructure impact toughness and sulfide stress corrosion cracking resistance of linepipe steels
topic Linepipe steel
(Ti
Mo)C precipitation
Sulfide stress corrosion cracking resistance
Microstructure
url http://www.sciencedirect.com/science/article/pii/S2238785424028746
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