Influence of Chromium Coating on Microstructure Changes in Zirconium Alloy E110 Under High-Temperature Hydrogenation and Kr Ion Irradiation
Source abstract
Abstract
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.
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Research context
OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Physics Faculty, Belarusian State University, 220030 Minsk, Belarus
Institute of Nuclear Physics ME RK, Almaty 050032, Kazakhstan
Funding
Governmental Program
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