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March 10, 2026Materials and Corrosion

Effect of NaCl‐Na 2 SO 4 on the Hot Corrosion Behavior of Nickel‐Based Alloys at 800°C Under Simulated High‐Chlorine Coal Combustion Condition

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Authors

LCLijuan ChenXinjiang Agricultural UniversityJZJ. ZhangElectric Power Research InstituteJLJialin LiXinjiang Agricultural University

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Implication

Hot corrosion behavior of nickel-based alloys under high-chlorine conditions reveals significant degradation, indicating vulnerability to corrosion.

Key Points

  • To investigate the hot corrosion behavior of nickel-based alloys in a high-temperature molten salt environment.
  • Simulated high-chlorine coal combustion conditions
  • Exposure to molten NaCl–Na2SO4 for 400 hours at 800°C
  • Characterization of corrosion product layers
  • Severe degradation observed due to chloride- and sulfate-induced corrosion
  • Formation of a three-layer corrosion product film
  • Al2O3 inner layer provided initial protection but showed defects enabling corrosive ion diffusion

Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/69af952b70916d39fea4c726https://doi.org/10.1002/maco.70129
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