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August 5, 2026MaterialsOpen Access

Enhanced High-Temperature Corrosion Resistance of AISI 301LN Stainless Steel in Silica-Doped Ternary Carbonate Nanofluids for Thermal Energy Storage Applications

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Authors

MMM. MoralesUniversitat Politècnica de CatalunyaMRMohammad RezayatPolytechnic University of Puerto RicoAMA. MateoUniversitat Politècnica de Catalunya

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Overview

Randomized trial evaluates corrosion resistance in AISI 301LN steel exposed to silica-doped nanofluids, suggesting improvements for thermal energy storage applications.

Key Points

  • This research investigates the corrosion behavior of AISI 301LN stainless steel in silica-doped molten carbonate salt nanofluids.
  • Corrosion tests in static Li2CO3-Na2CO3-K2CO3 molten salt at 600 °C for 1000 hours.
  • Exposure to nanofluids containing 1.0 wt.% SiO2 nanoparticles with sizes <20 nm and <50 nm.
  • Comparison of oxide scales formed after exposure to three nanofluids and the base salt.
  • Corrosion rate of AISI 301LN steel in molten salt reduced with SiO2 nanoparticles.
  • Oxide scale formation shows dense reticulated nanostructures with silica-containing oxides.
  • The finest SiO2 nanoparticles (<20 nm) significantly enhance the hardness and protective performance of the oxide scale.

Cite This Study

Morales et al. (2026) studied this question.

synapsesocial.com/papers/6a72e85b226790f3706583d7https://doi.org/10.3390/ma19153283
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