AN INTRODUCTION TO CORROSION PROBES

Principal characteristics and functions of linear polarization and electrical resistance corrosion probes are described. Linear probes measure potential of a test vs a reference electrode and apply 10, 15, or 20 mV positive or negative overpotential to the test electrode by a third electrode. Anodic or cathodic rates can be obtained. One configuration permits development of potential vs log current polarization curves, using two or three electrodes. Electrical resistance probes use a sensing element which generates data as a function of resistance. These data are sensitive to temperature and stress. Computerization can compensate for anomalous reactions from these effects. Holders, seals, and other components are affected by the environment, and galvanic relationships are taken into account. Data from probes improves precision of corrosion rate predictions and monitors operating systems continuously. Examples are given of successful operation.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00941492
• Corporate Authors:

  National Association of Corrosion Engineers

  P.O. Box 1499
  Houston, TX  United States  77001
• Authors:
  • Macki, J M
• Publication Date: 1977-1

Media Info

• Features: References;
• Pagination: p. 17-19
• Serial:
  • Materials Performance (MP)
  • Volume: 16
  • Issue Number: 1
  • Publisher: National Association of Corrosion Engineers
  • ISSN: 0094-1492
  • Serial URL: http://www.nace.org/Publications/Materials-Performance/

Subject/Index Terms

• TRT Terms: Computer programs; Corrosion; Electrodes; Forecasting; Monitoring; Polarization; Probes (Measuring devices); Resistance (Electricity); Stresses; Temperature
• Uncontrolled Terms: Data
• Old TRIS Terms: Probes
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00149191
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 30 1977 12:00AM