PSI - Issue 43

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000

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Procedia Structural Integrity 43 (2023) 101–106

10th International Conference on Materials Structure and Micromechanics of Fracture Laser cladded protective layer on the S960 Change of microhardness in the vicinity of the bi-material interface 10th International Conference on Materials Structure and Micromechanics of Fracture Laser cladded protective layer on the S960 Change of microhardness in the vicinity of the bi-material interface

Pavel Doubek a,c, * , Lucie Malíková a,b , Petr Miarka a,b , Stanislav Seitl a,b a Brno University of Technology, Faculty of Civil Engineering, Veveri 331/95, 602 00 Brno, Czech Republic b Institute of Physics of Materials Czech Academy of Sciences, v. v. i., Zizkova 513/22, 616 00 Brno, Czech Republic c OMNI-X CZ s.r.o., Samalova 60a, 615 00 Brno, Czech Republic Pavel Doubek a,c, * , Lucie Malíková a,b , Petr Miarka a,b , Stanislav Seitl a,b a Brno University of Techno ogy, Faculty of Civil Engin ering, Veveri 331/95, 602 00 Brno, Czech Republic b Institute of Physics of Materials Czech Academy of Sciences, v. v. i., Zizkova 513/22, 616 00 Brno, Czech Republic c OMNI-X CZ s.r.o., Samalova 60a, 615 00 Brno, Czech Republic

© 2023 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 the responsibility of MSMF10 organizers. © 201 9 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under the responsibility of MSMF10 organizers. Abstract Specimens with a bi-m tal ic interface are f med by laser cladding. The S960 high-st ength ste l is chosen as a substrate a erial to whi h a layer of either aluminum bronze or hard chrom is applied. The hange of fracture-mechanical properties of bi-met llic nterface, bonding ar a, and the heat-aff cted zone are tested by Vickers micro ardness. The Young's modulus of particular layer is calculated and several conclusions are drawn that describe the behaviors in the vicinity of the bi-material interface. © 201 9 The Authors. Published by Elsevier B.V. This is an ope access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under the responsibility of MSMF10 organizers. 1. Introduction The demands on structural elements, tools r machine c mponents in a technical practice are incr asingly leading to the use of materials which are formed by a c mbination of layers of different metallic materials, see e.g. Bhat et al. (2019) or Kocmanová et al. (2015). Combinations of different metallic layers are chosen with reg rd to the required function. The bi-metal elements can be use either during the designing process, or during renovations and repairs. The use of combinations of materials with different roperties can, wh n applied orrectly, improve the mechanical properties of the structural elements or machine components. This ca lead to an increase of durability, a reduction in maintenance costs and ultimately to a reduction in the overall operating costs of technical components. Abstract Specimens with a bi-metallic interface are formed by laser cladding. The S960 high-strength steel is chosen as a substrate material to which a layer of either aluminum bronze or hard chrome is applied. The change of fracture-mechanical properties of bi-metallic interface, bonding area, and the heat-affected zone are tested by Vickers microhardness. The Young's modulus of a particular layer is calculated and several conclusions are drawn that describe the behaviors in the vicinity of the bi-material interface. Keywords: bi-material, laser cladding, microhardness, high strength steel, fracture mechanics Keywords: bi-material, laser cladding, microhardness, high strength steel, fracture mechanics 1. Introduction The demands on structural elements, tools or machine components in a technical practice are increasingly leading to the use of materials which are formed by a combination of layers of different metallic materials, see e.g. Bhat et al. (2019) or Kocmanová et al. (2015). Combinations of different metallic layers are chosen with regard to the required function. The bi-metal elements can be used either during the designing process, or during renovations and repairs. The use of combinations of materials with different properties can, when applied correctly, improve the mechanical properties of the structural elements or machine components. This can lead to an increase of durability, a reduction in maintenance costs and ultimately to a reduction in the overall operating costs of technical components.

* Corresponding author. Tel.: +420538728714 E-mail address: pavel.doubek@omni-x.cz * Correspon ing author Tel.: +420538728714 E-mail address: pavel.doubek@omni-x.cz

2452-3216 © 2023 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 the responsibility of MSMF10 organizers. 10.1016/j.prostr.2022.12.242 2452-3216 © 2023 The Authors. Published by Elsevier B.V. This is an ope access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of MSMF10 organizers. 2452-3216 © 2023 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 the responsibility of MSMF10 organizers.