PlumX Metrics
Embed PlumX Metrics

The influence of Ni on the microstructure and corrosion resistance of high-strength low alloy steel in the Cl-containing environment

Anti-Corrosion Methods and Materials, ISSN: 0003-5599, Vol: 69, Issue: 1, Page: 9-16
2022
  • 8
    Citations
  • 0
    Usage
  • 9
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

Purpose: This paper aims to search the optimum content of Ni on the microstructure, phase and electrochemical behavior of high-strength low alloy (HSLA) steel in the 3.5 wt.% NaCl solution. Design/methodology/approach: The microstructure and corrosion resistance of Ni-containing HSLA steel in the simulated marine environment was studied by optical microscopy, scanning electron microscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and electrochemical techniques. Findings: The sample containing 3.55 wt.% of nickel exhibited a finer grain size of 10 μm and a lower i of 2.169 µA cm. The XRD patterns showed that the Fe-Cr-Ni solid solution, FeC and CrC were observed in samples when Ni was added. Besides, the 3.55 wt.% of nickel addition enhanced the charge transfer resistance of the low alloy steel which suggested the sample possessed excellent inhibition of electrochemical reaction and corrosion resistance. The XPS spectrum suggested that nickel was beneficial to improve the corrosion resistance of steel by forming protective oxides, and the ratio of Fe/Fe in protective oxides was increased. Practical implications: Finding the comprehensive performance of HSLA steel which can be applied to unmanned surface vehicles in marine operations. Originality/value: This study has a guiding significance for optimizing the composition of HSLA steel in a Cl- containing environment.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know