Published January 2021 | Version v1
Journal article Metadata-only

Influence of a small velocity variation on the evolution of the corrosion products and corrosion behaviour of super 13Cr SS in a geothermal CO2 containing environment

Creators

  • 1. Shunde Graduate School, University of Science and Technology Beijing, Foshan, 528399 (China)
  • 2. Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Leeds, LS2 9JT (United Kingdom)
  • 3. Institute of Advanced Materials and Technology, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing, 100083 (China)
  • 4. PetroChina Tarim Oilfield Company, Research Institute of Oil and Gas Engeineering, Korla, 841000 (China)

Description

The general and localised corrosion of super 13Cr SS under various CO2 partial pressures (pCO2) in the static conditions and rotated speeds of 188 rpm at 200 °C were evaluated. The results show that super 13Cr SS exhibits lower localised corrosion risk at 188 rpm compared to the static conditions. The small velocity retards the localised corrosion through the formation of uniform corrosion product scales, which mainly comprises nanocrystalline FeCr2O4 at 2.7 bar pCO2. A double-layered film consists of an inner layer of Cr(OH)3/undissolved austenite and an outer crystalline FeCO3 layer was observed at 28.5 bar pCO2.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.corsci.2020.108983

Additional details

Identifiers

DOI
10.1016/j.corsci.2020.108983;
PII
S0010938X20312695;

Publishing Information

Journal Title
Corrosion Science
Journal Volume
178
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
54016656
Subject category
S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AUSTENITE; CARBON DIOXIDE; CHROMITES; CHROMIUM HYDROXIDES; CORROSION; CORROSION PRODUCTS; CRYSTALS; IRON CARBONATES; NANOSTRUCTURES; PARTIAL PRESSURE; THIN FILMS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CARBON COMPOUNDS; CARBON OXIDES; CARBONATES; CHALCOGENIDES; CHEMICAL REACTIONS; CHROMIUM COMPOUNDS; FILMS; HYDROGEN COMPOUNDS; HYDROXIDES; IRON ALLOYS; IRON COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Copyright
Copyright (c) 2020 Elsevier Ltd. All rights reserved.