Kolchin P.V., Kostylev K.A., Chernigin M.A. Assessment of Impact Toughness, Cold Resistance and Structure of Carbon Steel 20, Reinforced with 12Cr18Ni10Ti Steel by Laser Cladding Method

DOI: 10.18503/1995-2732-2025-23-4-94-101

Abstract

Modern development of additive technologies allows for creation new composite materials with higher characteristics, consisting of two or more different alloys. This opens up opportunities for manufacturing equipment and structures that are more resistant to extreme operating conditions, such as low temperatures of the Far North and the Arctic. This article assesses the cold resistance of a material consisting of steel 20, which is reinforced with steel 12Cr18Ni10Ti in order to form areas of viscous fracture during brittle fracture of the base material at low temperatures. To achieve the stated objectives, bimetallic samples were manufactured, where the second material was applied by laser wire cladding and located in the form of stripes on three sides of the samples surface. The authors used the methods of impact bending testing, microstructural and fractographic analysis. The results show that reinforcement of BCC steel with FCC alloy by additive laser cladding method allows for preserving viscous component in fracture of samples at the level of 9% of cross-section of sample, at the selected reinforcement density, which increases impact toughness by 2.2 times at test temperature of –50°C. However, due to difference in properties of materials, there are stresses during destruction, which reduce impact toughness at normal temperature. In this regards, there is a need to develop methods for reduction of this negative influence by means of selection of more effective reinforcement scheme, heat treatment, methods of computer modeling and combination of materials.

Keywords

cold resistance, multi-metallic materials, additive technologies, laser cladding, reinforcement.

For citation

Kolchin P.V., Kostylev K.A., Chernigin M.A. Assessment of Impact Toughness, Cold Resistance and Structure of Carbon Steel 20, Reinforced with 12Cr18Ni10Ti Steel by Laser Cladding Method. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 4, pp. 94-101. https://doi.org/10.18503/1995-2732-2025-23-4-94-101

Pavel V. Kolchin – PhD(Eng.), Researcher, Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-2875-7377

Konstantin A. Kostylev – PhD(Eng.), Head of Acoustic Engineering Sector, Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0003-1061-9192

Mikhail A. Chernigin – Postgraduate Student, Nizhny Novgorod State Technical University n. a. R.E. Alekseev, Nizhny Novgorod, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0009-0005-6494-2851

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