RAPID METHOD TO PREDICT THE EFFECTIVENESS OF INHIBITED ENGINE COOLANTS IN ALUMINUM HEAT EXCHANGERS

The galvanostatic polarization method was used to determine the pitting potentials of candidate wrought aluminum alloys in inhibited ethylene glycol engine coolants. It was shown that the relative value of the pitting potential is an excellent measure of the long-term effectiveness of the coolants in preventing spontaneous pitting and crevice attack in the aluminum heat exchangers. The long-term effectiveness was determined by metallographic examination of aluminum heat exchangers subjected to a four-month, 50,000 mile simulated service circulation test.

• Supplemental Notes:
  • From SAE Meeting held June 9-13, 1980.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Wiggle, R
  • Hospadaruk, V
• Publication Date: 1980-6

Media Info

• Features: References;
• Pagination: 6 p.
• Serial:
  • Society of Automotive Engineers Preprint
  • Publisher: Society of Automotive Engineers (SAE)

Subject/Index Terms

• TRT Terms: Alloys; Aluminum; Aluminum alloys; Automobiles; Coolants; Cooling; Corrosion; Ethylenes; Forecasting; Heat exchangers; Measures of effectiveness; Radiators; Time duration; Vehicle power plants
• Uncontrolled Terms: Effectiveness; Long term
• Old TRIS Terms: Automobile engines; Galvanostatic pitting test
• Subject Areas: Highways; Vehicles and Equipment; I94: Vehicle Corrosion;

Filing Info

• Accession Number: 00331784
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: SAE 800800
• Files: TRIS
• Created Date: Jul 9 1981 12:00AM