Analysis of the Effects of Welding Conditions on the Formation of the Structure of Welded Joints of Low-Carbon Low-Alloy Steels

Abstract:

To obtain reliable joints in the conditions of open construction is complicated or impossible to use stationary machines and apparatuses, so requirements to welding processes are of special interest. The most interest concerning the support of strength and reliability of welded joint is specific processes developed after the crystallization of weld at weld zone. The value of the zone of thermal influence depends on the welding conditions and properties of metal that is welded. That is why the research on the influence of welding conditions on the formation of the structure of welded zone and thermal influence zone is actual.

• Periodical: Key Engineering Materials (Volume 844)
• Pages: 146-154
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.844.146
• Online since: May 2020
• Authors: Dmytro Laukhin, Valerii Pozniakov, Oleksandr Beketov, Nataliia Rott*, Anatolii Shchudro
• Keywords: Controlled Rolling, Ferrite-Pearlite Joint, Structure, Thermal Influence, Welding

References

[1] Kostin, V., Poznyakov, V., Gayvoronskiy, A., Mossokovskaya, I., Zuber, T., Zhukov, V., & Kostin, Yu. (2015). The influence of electric arc welding modes on the nature of structural transformations in the metal of the zone of thermal impact of steel 30Х2Н2МФ. Shipbuilding and Maritime Infrastructure, (1), 87-102.

DOI: 10.15589/smi20150105

[2] Pozdnyakov, V.D. (2017). Welding technologies for production and repair of metal structures from high-strength steels. Bulletin of the National Academy of Sciences of Ukraine, 2017. (1), 65-73.

[3] Steel grade 09G2S. http://metallicheckiy-portal.ru/markimetallov/stk/09G2S.

[4] Laukhin, D.V., Rott, N.O., Beketov, A.V., Sukhomlin, G.D., Ivantsov S.V., & Shchudro A.E. (2019). Patent UA 133785.

[5] Laukhin, D.V., Sukhomlin, G.D., Beketov, A.V., Ivantsov, S.V., Schudro, А.E., & Laukhin. V.D. The effect of temperature-deformation processing in the intercritical temperature range on the structure and properties of thick sheets of low-carbon building steels. Construction, materials science, mechanical engineering, (96), 95-102.

[6] Laukhin, D., Beketov, O., Rott, N., & Schudro, A. (2019). The Elaboration of Modernized Technology of Controlled Rolling Directed at the Formation of High Strengthening and Viscous Qualities in HSLA Steel. Solid State Phenomena, (291), 13-19. https://doi.org/10.4028/www.scientific.net/ssp.291.13.

DOI: 10.4028/www.scientific.net/ssp.291.13

[7] State Building Codes В.2.6-198:2014 Steel structures: design standards. http://www.mts-ua.com/images/My/Docs/2.6-198-2014.pdf.