Published August 2021 | Version v1
Journal article Metadata-only

Influence of the degree of saturation on carbon steel corrosion in soil

Creators

  • 1. Now in Steel Research Laboratories, Nippon Steel Corporation, 1-8 Fuso-Cho, Amagasaki, Hyogo, 660-0891 (Japan)
  • 2. Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552 (Japan)

Description

Highlights: • Monitoring of corrosion of carbon steel in soil by EIS. • Impact of the degree of water saturation on carbon steel corrosion. • Modeling of non-uniform corrosion in unsaturated soil. The corrosion behaviour of carbon steel was investigated in artificial soils of various saturations with 3% NaCl solution. The carbon steel corroded uniformly at slower rates in saturated soil and non-uniformly at higher rates in unsaturated soils. The corrosion current density (icorr) was measured by electrochemical impedance spectroscopy, and the percentage of corroded surface area (Aanode) was evaluated using a laser displacement metre. The corrosion current density (icorr(a)) of the corroded surface area was determined by dividing the icorr by (Aanode/100). Based on the results obtained, the influence of the degree of water saturation on carbon steel corrosion is discussed.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.corsci.2021.109568

Additional details

Identifiers

DOI
10.1016/j.corsci.2021.109568;
PII
S0010938X21003346;

Publishing Information

Journal Title
Corrosion Science
Journal Volume
189
Journal Page Range
vp.
ISSN
0010-938X
CODEN
CRRSAA

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54018976
Subject category
S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CARBON STEELS; COMPUTERIZED SIMULATION; CORROSION; CURRENT DENSITY; ELECTROCHEMISTRY; IMPEDANCE; LASERS; POLARIZATION; SODIUM CHLORIDES; SPECTROSCOPY; SURFACE AREA; WATER SATURATION
Descriptors DEC
ALKALI METAL COMPOUNDS; ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHEMISTRY; CHLORIDES; CHLORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; SATURATION; SIMULATION; SODIUM COMPOUNDS; SODIUM HALIDES; STEELS; SURFACE PROPERTIES; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2021 Published by Elsevier Ltd.