PSI - Issue 42

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ Structural Integrity Procedia 00 (2019) 000 – 000

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ScienceDirect

Procedia Structural Integrity 42 (2022) 1529–1536

© 2022 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 the scientific committee of the 23 European Conference on Fracture – ECF23 Abstract A bi-metal interface between S960 and either aluminium bronze or hard chrome is created using laser cladding technology. This interface is subjected to metallographic analysis, identification of real chemical composition, detection of potential stress concentrators and microhardness test HV0.5. Tensile strength of each type of layer is determined based on the microhardness measurement. Several conclusions describing changes in material properties in the vicinity of the bi-material interface are stated. © 2020 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 responsibility of 23 European Conference on Fracture - ECF23 Keywords: fracture mechanics, laser cladding, high strength steel, Vickers microhardness, stress concentrators 1. Introduction In a process of designing of a new technical work, repairs or renovations, bi-metal structural elements/components are used in order to improve the mechanical or chemical properties of the surface and extension of durability leading to saving of production costs as well. Therefore, structural elements/components are formed by a combination of different metallic materials. They consist of the base material of required properties to which a thin additional layer with better utility properties is applied by a suitable technology, see e.g., Motarjemi et al. (2002), Kocmanová et al. 23 European Conference on Fracture - ECF23 Analysis of the material properties in the vicinity of bi-material interface made by the laser cladded protective layer on the S960 Pavel Doubek a,c, *, Lucie Malíková 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

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

2452-3216 © 2020 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 responsibility of 23 European Conference on Fracture - ECF23

2452-3216 © 2022 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 the scientific committee of the 23 European Conference on Fracture – ECF23 10.1016/j.prostr.2022.12.224