Electrometallurgy Today, 2024, №03



2024 №03 (07)

DOI of Article 10.37434/sem2024.03.08

2024 №03 (09)

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Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2024, #3, 58-64 pages

Structure and mechanical properties of thick molybdenum condensates and dispersion-strengthened alloys of Mo–ZrO₂ system

A.V. Demchyshyn¹, A.A. Demchyshyn², S.P. Egorov¹

¹I.M. Frantsevych Institute for Problems of Materials Science of the NAS of Ukraine. 3 Omelyan Pritsak str., 03680, Kyiv, Ukraine. E-mail: demch@ipms.kiev.ua
²National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute». 37 Prospect Beresteiskyi, 03056, Kyiv, Ukraine

Abstract
The structure and mechanical properties of thick vacuum condensates of molybdenum and dispersion-strengthened alloys of the Mo–ZrO2 system with a thickness of 0.8…l.2 mm produced by electron beam evaporation of chosen components with subsequent condensation of their vapor phase onto flat molybdenum substrates was investigated. It was shown that the structure features and the level of condensate strength depend on the substrate temperature and volumetric content of the strengthening phase for two-phased condensates. 5 Ref. , 1 Tabl., 12 Fig.
Keywords: electron beam vapor phase technology, thick vacuum condensate, molybdenum, of Mo–ZrO2 system, microstructure, hardness, strength

Received: 04.12.2023
Received in revised form: 12.03.2024
Accepted: 11.09.2024

References

1. Demchyshyn, A.V., Kulak, L.D., Yavor, V.A. (2021) Structure and mechanical properties of thick metal condensates strengthened with various dispersed particles. I. Structure and yield strength of dispersion-strengthened thick metal condensates. J. Powder Metallurgy and Metal Ceramics, 60(1), 112-127. https://doi.org/10.1007/s11106-021-00221-5
2. Trefilov, V.I., Milman, Yu.V., Firstov, S.A. (1975) Physical basis of the strength of refractory metals. Kyiv, Naukova dumka [in Russian].
3. Movchan, B.A., Demchishin, A.V., Badilenko, G.F. (1978) Ductility maximum and weakening and strengthening phenomena in two-phase metallic materials. Strength Mater., 10(2), 187-190. https://doi.org/10.1007/BF01524637
4. Movchan, B.A., Badilenko, G.F., Demchishin, A.V. (1980) Influence of the second phase on the structure and mechanical properties of vacuum condensates. Metallofizika, 2(1), 77-84.
5. Movchan, B.A. (2008) Mechanical dimensional effects in two-phase inorganic materials. The Paton Welding J., 11, 145-148.

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