Effects of nanosized Nb carbide precipitates on the corrosion behavior of high-strength low-alloy steel in simulated seawater

Qiyue Zhao, Zihao Wang, Endian Fan, Xiaoguang Wu, Yunhua Huang, Xiaogang Li

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Nb is usually utilized in high-strength low-alloy (HSLA) steels as a strengthening and toughening microalloying element. HSLA steels with different Nb contents, or different amounts of precipitates were chosen to study the effects of Nb and Nb carbide precipitates on the corrosion behavior of HSLA steel in simulated seawater respectively. Microstructural and electrochemical investigations revealed that Nb enhances the corrosion resistance of HSLA steel due to the homogeneous microstructure resulted from NbC precipitation in steel. Moreover, although as a cathodic phase, the nano-sized Nb carbide precipitates have no deteriorating effect on the corrosion behavior of HSLA steel in simulated seawater.

Original languageEnglish
Pages (from-to)7989-7996
Number of pages8
JournalInternational Journal of Electrochemical Science
Volume12
Issue number9
DOIs
Publication statusPublished - 2017 Sep 1
Externally publishedYes

Keywords

  • Corrosion
  • HSLA steel
  • NbC precipitate
  • Simulated seawater

ASJC Scopus subject areas

  • Electrochemistry

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