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) 372–377

© 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 This study presents an investigation into the modifications induced in the Titanium alloy VT1-0 by intense electron beam irradiation in the ablative mode. Experimental investigations and numerical calculations were conducted on the interaction between a 5- µs electron beam with an electron energy of approximately 0.35 MeV and current of 2kA, and a plate target made of the titanium alloy VT1-0. Of particular interest are the transformations that occur in ablative regime. The evolution of the temperature field within the interaction zone was numerically calculated, revealing its correlation with the actual microstructure of the target material. Employing microscopy methods, our experimental analyses showed substantial sample changes in the target material, highlighted by the formation of a crater and the development of a distinctive multi-layered near-surface structure. © 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 Keywords: electron beam; ablation; titanium; high current 1. Introduction The interaction between charged particle beams and solid surfaces has a long history and remains a topic of significant interest in materials science. In the 1970s, in addition to conventional methods of material strengthening, VII International Conference ―In -service Damage of Materials: Diagnostics and Prediction ‖ (DMDP 2023) Modifications in VT1-0 Titanium Alloy Irradiated by Intense Electron Beam in Ablative Mode V.V. Lytvynenko a , O.A. Startsev a *, A.G.Ponomarev b a Institute of Electrophysics and Radiation Technologies National Academy of Science of Ukraine, P.O. 8812, Chernyshevsky Str., 28, Kharkiv, 61002, Ukraine b NSC “Kharkov Institute of Physics and Technology” NAS of Ukraine, 1, Akademichna St., Kharkiv, 61008, Ukraine

* Corresponding author. Tel./Fax: +380577041360. E-mail address: startsev-alex@ukr.net

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.2024.04.053