INFLUENCE OF THE LONGITUDINAL WELDED JOINT MICROSTRUCTURE OF X52 AND X70 LARGE DIAMETER PIPES ON RESISTANCE TO HYDROGEN EMBRITTLEMENT
DOI:
https://doi.org/10.32339/0135-5910-2024-9-60-67Keywords:
large diameter pipes, heat-affected zone, hydrogen embrittlement, ferrite, bainite, perliteAbstract
The article covers influence of a set of gradient microstructures of large diameter pipes (LDP) on resistance to hydrogen embrittlement. The object of the study were specimens of longitudinal welded joints of X52 and X70 LDP before and after slow strain rate tensile tests (SSRT) in gaseous nitrogen and hydrogen. It was found that fracture of X52 specimens during SSRT occurred with multiple crack initiation centres at the interfaces of the pearlite–ferrite structural constituents, while fracture of X70 specimens resulted in a single crack propagation. Steels Х52 and Х70 fractured not in the heat-affected zone (HAZ) recrystallisation area containing islands of martensite-austenite phase, but in the high-temperature tempering zone, which is characterised by anisotropic ferrite-perlite (Х52) and ferrite-bainite (Х70) microstructure. Finely dispersed uniform structure of bainite ferrite despite the content of martensite-austenite component is not a source of hydrogen crack initiation. Although a welded joint of X70 steel is characterised by higher strength, it is less susceptible to the embrittlement effects of gaseous hydrogen than X52, which is probably due to the finer and more uniform structure of X70 steel. Presence of ferrite-pearlite banding in the structure of X52 steel has a more negative effect on resistance to hydrogen embrittlement than increased hardness of the HAZ high-temperature tempering area of X70 steel.
References
Колачев Б. А. Водородная хрупкость металлов. — М.: Металлургия, 1985. — 215 с.
Davani R. K., Miresmaeili R., Soltanmohammadi M. Effect of thermomechanical parameters on mechanical properties of base metal and heat affected zone of X65 pipeline steel weld in the presence of hydrogen // Mate-rials Science and Engineering: А. 2018. V. 718. P. 135–146. DOI: 10.1016/j.msea.2018.01.101.
Ayesha J. Haq., Muzaka K., Dunne D. P. etc. Effect of microstructure and composition on hydrogen permea-tion in X70 pipeline steels // International Journal of Hydrogen Energy. 2013. V. 38. № 5. Р. 2544–2556. DOI: 10.1016/j.ijhydene.2012.11.127.
Сергеев Н. Н., Кутепов С. Н. О взаимодействии водорода с дефектами кристаллической решетки в ме-таллах и сплавах // Машиностроение и машиноведение. Известия ТулГУ. Технические науки. 2017. № 4. С. 131–141.
Пумпянский Д. А., Пышминцев И. Ю., Хаткевич В. М., Худнев А. А. Водородное охрупчивание трубных сталей // Металлы. 2023. № 3. С. 36–46. DOI: 10.31857/S0869573323030059.
Девятерикова Н. А., Лаев К. А., Цветков А. С., Дагаев С. Е. Краткая характеристика методов оценки сов-местимости сталей марок Х52 и Х70 с водородом и результаты испытаний ТБД // Черные металлы. 2024. № 2. С. 32–38. DOI: 10.17580/chm.2024.02.06.
Christ M., Guo X., Sharma R. etc. Hydrogen embrittlement susceptibility of gas metal arc welded joints from a high‐strength low‐alloy steel grade S690QL // Steel Research International. 2020. V. 91. № 11. 2000131. DOI: 10.1002/srin.202000131.
Park H., Park C., Lee J. etc. Microstructural aspects of hydrogen stress cracking in seawater for low carbon steel welds produced by flux-cored arc welding // Materials Science and Engineering: A. 2021. V. 820. 141568. DOI: 10.1016/j.msea.2018.01.101.
Zhang P., Laleh M., Hughes A. E. etc. Effect of microstructure on hydrogen embrittlement and hydrogen-induced cracking ehavior of a high-strength pipeline steel weldment // Corrosion Science. 2024. V. 227. 111764. DOI: 10.1016/j.corsci.2023.111764.
Пышминцев И. Ю., Гизатуллин А. Б., Девятерикова Н. А. и др. Предварительная оценка возможности ис-пользования труб большого диаметра из стали Х52 для транспортировки чистого газообразного водо-рода под давлением // Известия вузов. Черная металлургия. 2023. Т. 66. № 1. С. 35–42. DOI: 10.17073/0368-0797-2023-1-35-42.
Dharamshi H. K., Bhadeshia H. Prevention of Hydrogen Embrittlement in Steels // ISIJ International. 2016. V. 56. № 1. P. 24–36. DOI: 10.2355/isijinternational.ISIJINT-2015-430.
Hejazi D. Effect of manganese content and microstructure on the susceptibility of X70 pipeline steel to hydro-gen embrittlement. — URL: https://ro.uow.edu.au/theses/4275/.
Zhao M. C., Shan Y. Y., Xiao F. R. etc. Investigation on the H2S-resistant behaviors of acicular ferrite and ul-trafine ferrite // Material Letters. 2002. V. 57. № 1. P. 141–145. DOI: 10.1016/S0167-577X(02)00720-6.
Robertson I. M., Sofronis P., Nagao A. etc. Hydrogen embrittlement understood // Metallurgical and Materials Transactions: В. 2015. V. 46. P. 2323–2341. DOI: 10.1007/s11663-015-0325-y.
Downloads
Published
Issue
Section
License
Copyright (c) 2024 ЧЕРНАЯ МЕТАЛЛУРГИЯ. Бюллетень научно-технической и экономической информации
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
