The Paton Welding Journal, 2024, №01



2024 №01 (05)

DOI of Article 10.37434/tpwj2024.01.06

2024 №01 (07)

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The Paton Welding Journal, 2024, #1, 36-42 pages

Effect of the texture of ferromagnetic Co–Fe coatings on their damping capacity

O.S. Kremenchutskyi¹, S.S. Polishchuk²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: kremens44@gmail.com
²G.V. Kurdyumov Institute for Metal Physics of the NAS of Ukraine. 36 Academician Vernadsky Blvd, 03142, Kyiv, Ukraine. E-mail: serg.polis7@gmail.com

Abstract
The influence of the crystallographic texture of Co‒Fe coatings produced by the electron beam physical vapor deposition (EB PVD) on their damping capacity (DC) has been studied. It is found that the amplitude dependence of the DC of a coating with a fiber <111> texture exhibits a prominent maximum, while that of a coating with a multicomponent <100> + <111> + <110> fiber texture shows the blurred maximum which has shifted to the higher amplitude deformations. The effect of both the fiber texture type and the level of internal (residual) stresses in the Co‒Fe coatings on the amplitude dependence of the DC has been analyzed within the framework of the Smith‒Birchak model. It is shown that the transition from a single-component to a multi-component coating texture reduces the DC maximum value. In contrast, an increase in the internal stresses in the coatings leads to a shift and blurring of the DC maximum. On this basis, it is concluded that the maximum DC for Co–Fe coatings can be achieved provided that they have a fiber <111> texture and a minimum level of internal stresses. 15 Ref., 2 Tabl., 10 Fig.
Keywords: EB PVD, coating, Co‒Fe alloy, damping capacity, texture, internal stresses

Received: 14.11.2023
Received in revised form: 07.12.2023
Accepted: 22.01.2024

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Suggested Citation

O.S. Kremenchutskyi, S.S. Polishchuk (2024) Effect of the texture of ferromagnetic Co–Fe coatings on their damping capacity. The Paton Welding J., 01, 36-42.

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