Differential corrosion behavior of 3-nitro-1,2,4-triazole-5-one (NTO) and ammonium perchlorate (AP): Insights from experiments and simulations

Ziyang Guo, Liyuan Qin, Haoming Zou, Xiao Ma, Dongliang Wang, Yansong Shi*, Xijuan Lv, Yujie Qiang, Wei Guo, Qinghai Shu

*Corresponding author for this work

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Abstract

This study investigates the corrosion mechanism of carbon steel (CS) induced by high-energy density materials (HEDMs), NTO and AP. CS exhibited corrosion rates of 1.314 mm/y and 8.690 mm/y when exposed to NTO and AP powders, respectively. However, these rates shifted to 9.050 mm/y for NTO and 3.597 mm/y for AP in solution. Experiments combining grand canonical Monte Carlo (GCMC) and ab initio molecular dynamics (AIMD) simulations demonstrate AP's greater susceptibility to hygroscopicity, establishing a corrosive environment. CS maintains an unabated corrosion rate as Cl- from AP reduction damages corrosion products. Conversely, NTO's compact corrosion products effectively delay CS corrosion.

Original languageEnglish
Article number111903
JournalCorrosion Science
Volume230
DOIs
Publication statusPublished - 15 Apr 2024

Keywords

  • 3-nitro-1,2,4-triazole-5-one
  • AIMD simulations
  • Ammonium perchlorate
  • Corrosion mechanism
  • Electrochemical tests

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Guo, Z., Qin, L., Zou, H., Ma, X., Wang, D., Shi, Y., Lv, X., Qiang, Y., Guo, W., & Shu, Q. (2024). Differential corrosion behavior of 3-nitro-1,2,4-triazole-5-one (NTO) and ammonium perchlorate (AP): Insights from experiments and simulations. Corrosion Science, 230, Article 111903. https://doi.org/10.1016/j.corsci.2024.111903