ROLE OF HIGH-ENTROPY ALLOYS IN THE OIL AND GAS INDUSTRY OF UZBEKISTAN
DOI:
https://doi.org/10.5281/zenodo.17529279Abstract
High-entropy alloys (HEAs) represent a new class of advanced metallic materials consisting of multiple principal elements in near-equiatomic compositions. Due to their superior corrosion resistance, high thermal stability and high strength, HEAs are promising candidates for harsh service environments such as oil and gas production. The present work investigates the applicability of AlCoCrNiFe-based HEAs in Uzbekistan’s oil-gas sector. Literature analysis (2017–2024) and comparative corrosion performance modelling based on H₂S-containing gas compositions from Muborak and Sho‘rtan processing plants indicate that dual-phase BCC/B2 HEAs provide 6–10× lower corrosion rate than martensitic 13Cr steels and outperform Inconel-718 at 300–600°C. These results highlight that HEAs could reduce operating costs related to corrosion-driven equipment replacements. Pilot testing of HEAs in critical components (flow lines, Xmas-tree fittings, pump rotors) is recommended to evaluate both technical and economic feasibility in Uzbek upstream and midstream services.
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