Comparison of corrosion behavior between coarse grained and nano/ultrafine grained 304 stainless steel by EWF, XPS and EIS

Jinlong Lv; Hongyun Luo

doi:10.1016/j.jnucmat.2014.05.041

Comparison of corrosion behavior between coarse grained and nano/ultrafine grained 304 stainless steel by EWF, XPS and EIS

Jinlong Lv, Hongyun Luo

ENG - Fracture and Reliability Research Institute

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

The electron work function in coarse grained stainless steel was higher than that in nano/ultrafine grained one. More M₂O₃ types oxides and thicker passive film were observed in nano/ultrafine grained 304 stainless steel. The electrochemical impedance spectroscopy results showed that grain refinement improved corrosion resistance of 304 stainless steel. The results obtained indicated that the impedance increase was attributed to decreased electron work function. Lower electron work function facilitated to form thicker passive films. The same characteristics were observed with the increasing of chloride ion concentration.

Original language	English
Pages (from-to)	469-473
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	452
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2014.05.041
Publication status	Published - 2014 Sept

ASJC Scopus subject areas

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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title = "Comparison of corrosion behavior between coarse grained and nano/ultrafine grained 304 stainless steel by EWF, XPS and EIS",

abstract = "The electron work function in coarse grained stainless steel was higher than that in nano/ultrafine grained one. More M2O3 types oxides and thicker passive film were observed in nano/ultrafine grained 304 stainless steel. The electrochemical impedance spectroscopy results showed that grain refinement improved corrosion resistance of 304 stainless steel. The results obtained indicated that the impedance increase was attributed to decreased electron work function. Lower electron work function facilitated to form thicker passive films. The same characteristics were observed with the increasing of chloride ion concentration.",

author = "Jinlong Lv and Hongyun Luo",

year = "2014",

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doi = "10.1016/j.jnucmat.2014.05.041",

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AU - Lv, Jinlong

AU - Luo, Hongyun

PY - 2014/9

Y1 - 2014/9

N2 - The electron work function in coarse grained stainless steel was higher than that in nano/ultrafine grained one. More M2O3 types oxides and thicker passive film were observed in nano/ultrafine grained 304 stainless steel. The electrochemical impedance spectroscopy results showed that grain refinement improved corrosion resistance of 304 stainless steel. The results obtained indicated that the impedance increase was attributed to decreased electron work function. Lower electron work function facilitated to form thicker passive films. The same characteristics were observed with the increasing of chloride ion concentration.

AB - The electron work function in coarse grained stainless steel was higher than that in nano/ultrafine grained one. More M2O3 types oxides and thicker passive film were observed in nano/ultrafine grained 304 stainless steel. The electrochemical impedance spectroscopy results showed that grain refinement improved corrosion resistance of 304 stainless steel. The results obtained indicated that the impedance increase was attributed to decreased electron work function. Lower electron work function facilitated to form thicker passive films. The same characteristics were observed with the increasing of chloride ion concentration.

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Comparison of corrosion behavior between coarse grained and nano/ultrafine grained 304 stainless steel by EWF, XPS and EIS

Abstract

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