Influence of Chromium Coating on Microstructure Changes in Zirconium Alloy E110 Under High-Temperature Hydrogenation and Kr Ion Irradiation
Kruglyakov M.A. Kudiiarov V.N. Laptev R.S. Vrublevskii D.B. Svyatkin L.A. Uglov V.V. Ivanov I.A. Koloberdin M.V.
February 2025Multidisciplinary Digital Publishing Institute (MDPI)
Coatings
2025#15Issue 2
In this work, the peculiarities of microstructure changes in Cr-coated Zr1%Nb alloy under high-temperature hydrogenation and Kr ion irradiation were investigated. A comprehensive analysis revealed that Cr coating reduces the thickness of the Kr+ radiation damage zone by 15%–20% and decreases the density of radiation-induced defects compared to that of uncoated Zr1%Nb alloy. Additionally, Cr-coated samples exhibit a more uniform hydrogen distribution. According to first-principles calculations and positron annihilation spectroscopy, hydrogen-free dislocations predominate in the Cr-coated Zr1%Nb alloy after hydrogenation and irradiation. These findings emphasize the protective role of Cr coatings in mitigating radiation damage and hydrogen embrittlement in zirconium alloys.
coatings , Cr , defects , density functional theory , hydrogenation , Kr ions , positron annihilation spectroscopy , Zr1%Nb
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School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, Tomsk, 634050, Russian Federation
Physics Faculty, Belarusian State University, Minsk, 220030, Belarus
Institute of Nuclear Physics ME RK, Almaty, 050032, Kazakhstan
School of Nuclear Science and Engineering
Physics Faculty
Institute of Nuclear Physics ME RK
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026