PSI - Issue 59

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 59 (2024) 622–628

© 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 DMDP 2023 Organizers Abstract The present study aimed at the investigation of a perspective tungsten-free system for production and practical using powder electrodes for strengthening and restoring details by flux-cored arc welding (FCAW) with high mechanical properties and wear resistance. Hardfacing flux-cored electrodes were prepared with placing mixture of initial components (Mo-Ti-B-C) in 08kp steel shell. Electrodes were made with different ratio between Ti and Mo. Microstructure of hardfacings was investigated with scanning electron microscopy and x-ray diffraction analysis, which confirm presence of strengthening phase Fe(Mo, B) 2 in high amount. Hardness measurement of hardfacings shows high hardness (up to 64 HRC) of materials. Wear resistance testing was made in condition of working with fixed, non-fixed abrasive and impact-abrasive load. For comparison serial production electrodes (of different countries) were used. Experimental hardfacings show high wear resistance in comparison with serial electrodes. One of the samples shows lack of defects in the structure and strong bond between hardfaced layer and substrate, while sample with increased molybdenum amount characterized with presence of defects both in structure and fusion zone. © 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 DMDP 2023 Organizers VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Experimental investigation of FCAW hardfacing wear resistance based on Fe-Ti-Mo-B-C Olexandr Ivanov a, *, Dmytro Petryna b , Maksym Karpash c , Halyna Kramar d , Sergiy Marynenko d , Ihor Koval d a Professional College of Electronic Devices, Ivano-Frankivsk National Technical University of Oil and Gas, Vovchynetska str. 223, Ivano Frankivsk 76006, Ukraine b Ivano-Frankivsk National Technical University of Oil and Gas, Karpats'ka str. 15, Ivano-Frankivsk 76019, Ukraine c King Danylo University, E. Konovaltsia str. 35, Ivano-Frankivsk 76018, Ukraine d Ternopil Ivan Puluj National Technical University, Rus'ka str. 56, Ternopil 46001, Ukraine

* Corresponding author. Tel.: +3-8-095-136-5117 E-mail address: o.ivanov3001@gmail.com

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 DMDP 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 DMDP 2023 Organizers 10.1016/j.prostr.2024.04.088