Eng
Ukr
Rus


Позорная война рф против Украины

Начата 20 февраля 2014 и полномасштабно продолжена 24 февраля 2022 года. С первых же минут рф ведет ее с нарушением законов и правил войны, захватывает атомные станции, уничтожает бомбардировками мирное население и объекты критической инфраструктуры. Правители и армия рф - военные преступники. Все, кто платит им налоги или оказывают какую-либо поддержку - пособники терроризма. Народ Украины вас никогда не простит и ничего не забудет.
Print

2013 №02 (11) 2013 №02 (02)

The Paton Welding Journal 2013 #02
TPWJ, 2013, #2, 2-7 pages
 
INVESTIGATION OF STRESS-STRAIN STATE OF WELDED STRUCTURES FROM AUSTENITIC STEEL AT RADIOACTIVE IRRADIATION

Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 2, 2013 (February)
Pages                       2-7
 
 
Authors
S.I. KUCHUK-YATSENKO1, Yu.V. SHVETS1, V.F. ZAGADARCHUK1, V.I. SHVETS1, V.I. KHOMENKO2, S.I. ZHURAVLYOV2 and A.Ya. SUDARKIN2

1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
2CJSC «Pskovelektrosvar», Pskov, Russia
 
 
Abstract
To determine the optimum mode of heat treatment of flash-butt welded joints of pipes from K56 steel the influence of soaking time and heat treatment temperature on impact toughness and yield limit was studied. Testing was performed in keeping with API 1104 and DNV-OS-F101 international standards. Metallographic examination of the influence of microstructure on strength properties of the joints in Neophot-32 light microscope and JAMP 2000F scanning electron microscope was conducted. Analysis of the obtained data allowed establishing the optimum heat treatment mode, at which the joints meet the normative requirements made of welds at construction of critical pipelines, including off-shore pipelines. 10 Ref., 11 Figures.
 
 
Keywords: flash-butt welding, pipe steels, pipelines, welded joints, mechanical properties, microstructure, impact toughness, heat treatment, forced cooling
 
 
Received:                29.11.12
Published:                28.02.13
 
 
References
1. Morozov, Yu.D., Matrosov, M.Yu., Nastich, S.Yu. et al. (2008) High-strength pipe steels of new generation with ferrite-bainite structure. Metallurg, 8, 39-42.
2. (2000) DNV-OS-F101: Offshore standard. Submarine pipeline systems. Jan. 2000.
3. Kuchuk-Yatsenko, S.I., Shvets, Yu.V., Zagadarchuk, V.F. et al. (2012) Flash-butt welding of thick-walled pipes from high-strength steels of K56 strength class. The Paton Welding J., 5, 2-7.
4. Pogorzhelsky, V.I., Litvinenko, V.I., Matrosov, Yu.I. et al. (1979) Controlled rolling. Moscow: Metallurgiya.
5. Heisterkamp, F., Hunna, K., Matrosov, Yu.I. et al. (1999) Niobium-containing low-alloy steels. Moscow: Intermet Engineering.
6. Livshits, L.S., Khakimov, A.N. (1989) Metals science of welding and heat treatment of welded joints. Moscow: Mashinostroenie.
7. Grabin, V.F., Denisenko, A.V. (1978) Metals science of welding of low- and medium-alloy steels. Kiev: Naukova Dumka.
8. Svishchenko, V.V. (1995) Structure and mechanism of formation of granular bainite: Transact. of I.I. Polzunov Altaj STU. Barnaul: AltGTU.
9. Kremnev, L.S., Svishchenko, V.V., Cheprasov, D.P. (1997) Structure and mechanism of granular bainite formation in 20Kh2NAch steel. Metallovedenie i Termich. Obrab. Metallov, 9, 6-9.
10. Svishchenko, V.V., Cheprasov, D.P., Shabalin, V.N. et al. (2008) Formation of intermediate structure of granular morphology in low-carbon low-alloy steel under the conditions of step-isothermal decomposition of austenite. Polzunovsky Almanakh, 3.