PSI - Issue 65

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2024) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2024) 000–000

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 65 (2024) 310–316

The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) The effect of surface nanostructuring of the reinforcing phase on the mechanical properties of a nickel composite E.G. Zemtsova a *, V. K. Kudymov a , A.S. Dermenji a , Y.V. Sidorov a , V.M. Smirnov a a St. Petersburg State University, 198504, Universitetsky pr., 26, St. Petersburg, Russian Federation The most important task of modern mechanical engineering is the combination of high strength with a sufficient margin of the material plasticity. The solution to this problem is the use of metal matrix composite materials. One of the ways to strengthen a metal matrix is its reinforcement, i.e. the introduction of structures with high hardness and strength into the matrix. At the same time, Ni-based materials are of particular interest due to their increased heat resistance. However, the introduction of a dispersed reinforcing phase into the matrix leads to embrittlement of the material, which leads to difficulties in processing it. As a result of our research, an approach was proposed to obtain a metal matrix composite material using the surface structuring process and the powder metallurgy method. The developed approach made it possible to obtain a composite material where titanium carbide (TiC) nanostructures of about 2 nm in size are evenly distributed in the Ni matrix bulk. An important feature of the composite being developed is the absence of explicit interface boundaries between the metal matrix and the reinforcing element. This ensures the binding of the matrix and the reinforcing phase into a single whole. The resulting composite effectively resists plastic deformation and stresses. This allows not only to influence the strength properties of the material as effectively as possible, but also to preserve its plasticity. © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Keywords: composite materials; carbon nanotubes; ceramic nanoparticles; nickel ; mechanical properties The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) The effect of surface nanostructuring of the reinforcing phase on the mechanical properties of a nickel composite E.G. Zemtsova a *, V. K. Kudymov a , A.S. Dermenji a , Y.V. Sidorov a , V.M. Smirnov a a St. Petersburg State University, 198504, Universitetsky pr., 26, St. Petersburg, Russian Federation The most important task of modern mechanical engineering is the combination of high strength with a sufficient margin of the material plasticity. The solution to this problem is the use of metal matrix composite materials. One of the ways to strengthen a metal matrix is its reinforcement, i.e. the introduction of structures with high hardness and strength into the matrix. At the same time, Ni-based materials are of particular interest due to their increased heat resistance. However, the introduction of a dispersed reinforcing phase into the matrix leads to embrittlement of the material, which leads to difficulties in processing it. As a result of our research, an approach was proposed to obtain a metal matrix composite material using the surface structuring process and the powder metallurgy method. The developed approach made it possible to obtain a composite material where titanium carbide (TiC) nanostructures of about 2 nm in size are evenly distributed in the Ni matrix bulk. An important feature of the composite being developed is the absence of explicit interface boundaries between the metal matrix and the reinforcing element. This ensures the binding of the matrix and the reinforcing phase into a single whole. The resulting composite effectively resists plastic deformation and stresses. This allows not only to influence the strength properties of the material as effectively as possible, but also to preserve its plasticity. © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Keywords: composite materials; carbon nanotubes; ceramic nanoparticles; nickel ; mechanical properties © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Abstract Abstract

* Corresponding author. Tel.:+7-812-428-4033. E-mail address: ezimtsova@yandex.ru * Corresponding author. Tel.:+7-812-428-4033. E-mail address: ezimtsova@yandex.ru

2452-3216 © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers 2452-3216 © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers 10.1016/j.prostr.2024.11.046