An examination of the electrochemical characteristics of two stainless steels (UNS S32654 and UNS S31603) under liquid-solid impingement

Xinming Hu, Anne Neville

Research output: Contribution to journalArticle

Abstract

The erosion-corrosion resistance of high alloy stainless steel UNS S32654 and standard stainless steel UNS S31603 has been assessed under liquid-solid impingement conditions. The electrochemical characteristics of the two stainless steels have been examined via free corrosion potential measurements, anodic polarisation, linear polarisation and potentiostatic control in erosion-corrosion.It has been shown in this paper that high alloy stainless steel UNS S32654 exhibits better corrosion and erosion-corrosion performance than lower grade alloy UNS S31603. A general linear relationship between two electrochemical parameters (Ecorr and Rp) has been shown in this study. A critical solid loading between 60 and 100 mg/l, at which there is a transition from corrosion to erosion-corrosion for the two stainless steels under different conditions, has been determined. © 2003 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)537-544
Number of pages8
JournalWear
Volume256
Issue number5
DOIs
Publication statusPublished - Mar 2004

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Stainless steel
Corrosion
Erosion
Liquids
Alloy steel
Anodic polarization
Corrosion resistance
Polarization

Keywords

  • Corrosion
  • Electrochemical
  • Erosion
  • Stainless steels

Cite this

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An examination of the electrochemical characteristics of two stainless steels (UNS S32654 and UNS S31603) under liquid-solid impingement. / Hu, Xinming; Neville, Anne.

In: Wear, Vol. 256, No. 5, 03.2004, p. 537-544.

Research output: Contribution to journalArticle

TY - JOUR

T1 - An examination of the electrochemical characteristics of two stainless steels (UNS S32654 and UNS S31603) under liquid-solid impingement

AU - Hu, Xinming

AU - Neville, Anne

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AB - The erosion-corrosion resistance of high alloy stainless steel UNS S32654 and standard stainless steel UNS S31603 has been assessed under liquid-solid impingement conditions. The electrochemical characteristics of the two stainless steels have been examined via free corrosion potential measurements, anodic polarisation, linear polarisation and potentiostatic control in erosion-corrosion.It has been shown in this paper that high alloy stainless steel UNS S32654 exhibits better corrosion and erosion-corrosion performance than lower grade alloy UNS S31603. A general linear relationship between two electrochemical parameters (Ecorr and Rp) has been shown in this study. A critical solid loading between 60 and 100 mg/l, at which there is a transition from corrosion to erosion-corrosion for the two stainless steels under different conditions, has been determined. © 2003 Elsevier B.V. All rights reserved.

KW - Corrosion

KW - Electrochemical

KW - Erosion

KW - Stainless steels

U2 - 10.1016/S0043-1648(03)00563-5

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