The effect of nanosized NbC precipitates on electrochemical corrosion behavior of high-strength low-alloy steel in 3.5%NaCl solution

Jia Li, Junsheng Wu, Zihao Wang, Shiqi Zhang, Xiaoguang Wu, Yunhua Huang, Xiaogang Li

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

The effect of nanosized NbC precipitates on electrochemical corrosion behavior of high-strength low-alloy (HSLA) steels in 3.5%NaCl solution has been investigated by the means of precipitate modulation, microstructure observation, electrochemical and immersion tests. The results showed that NbC precipitates markedly enhance the corrosion resistance of the H-contained steel, and the mechanism is that the plentiful and highly dispersed nanosized NbC particles acting as massive and effective hydrogen traps play a decisive role in the resistance to hydrogen activated corrosion. Moreover, it is evident that the inhibiting effect is related with the amount, size and distribution of the precipitates, and the optimized microstructures and precipitated phases improve the mechanical properties and resistance to hydrogen activated corrosion of HSLA steel.

Original languageEnglish
Pages (from-to)22175-22184
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number34
DOIs
Publication statusPublished - 2017 Aug 24
Externally publishedYes

Keywords

  • Electrochemical corrosion
  • HSLA steel
  • Hydrogen diffusion
  • NbC

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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