Effect of Water on the Stress Corrosion Cracking Behavior of API 5L-X52 Steel in E95 Blend

The effect of water content (0.5%, 1%, 2%, 5%, 10% y 20 V%) in E95 blend (5 V% gasoline – 95 V% ethanol) on the stress corrosion cracking (SCC) susceptibility of X-52 carbon steel was investigated. Slow strain rate tests (SSRT) coupled with electrochemical noise measurements (ECN) were carried out u...

Full description

Saved in:
Bibliographic Details
Published in:International journal of electrochemical science 2013-04, Vol.8 (4), p.5421-5437
Main Authors: Pedraza-Basulto, G.K., Arizmendi-Morquecho, A.M., Miramontes, J.A. Cabral, Borunda-Terrazas, A., Martinez-Villafane, A., Chacón-Nava, J.G.
Format: Article
Language:English
Subjects:
Fuel-grade ethanol
stress corrosion cracking
water content
X-52 steel
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of water content (0.5%, 1%, 2%, 5%, 10% y 20 V%) in E95 blend (5 V% gasoline – 95 V% ethanol) on the stress corrosion cracking (SCC) susceptibility of X-52 carbon steel was investigated. Slow strain rate tests (SSRT) coupled with electrochemical noise measurements (ECN) were carried out using a strain rate of 1 X 10-6 s-1. In general, scanning electron microscopy (SEM) observations on fracture surfaces showed a ductile behavior. However, secondary cracking was only observed for specimens exposed to solution containing up to 2 V% water. ECN gave indication of a likely localized corrosion process occurring at low water concentrations, whereas for water content above 2 V%, a uniform corrosion process seems more likely to occur. In addition, the material response immersed into the various solutions was investigated by using linear polarization resistance (LPR) measurements, weight loss and pH measurements. Reasons to explain the behavior found are discussed.
ISSN:1452-3981
1452-3981
DOI:10.1016/S1452-3981(23)14692-X