EFFECT OF AN INHIBITOR ON THE CORROSION OF AUTOBODY STEEL BY DE-ICING SALT

THE COUNCIL OF METROPOLITAN TORONTO UNDERTOOK A PROGRAM OF TESTING BY MEANS OF MECHANICAL RIGS OPERATING DAILY WITH TEST PANELS ATTACHED TO THE RIGS, AND THE TOTAL PROJECT WAS DESIGNED TO SIMULATE, AS CLOSELY AS POSSIBLE, THE ACUTAL CONDITIONS EXISTING ON ROADS. IT WAS POSSIBLE TO ACCELERATE THE PROGRAM BY RUNNING THE EQUIPMENT DAILY AND APPLYING SNOW AND CHEMICALS TO ATTAIN THE FINAL RESULTS. THE TEST COUPONS WERE REMOVED PERIODICALLY AND WEIGHED, TO DETERMINE THE LOSS OF METAL DUE TO CORROSION. THE RESULTS INDICATED THAT (A) A REDUCTION IN LOSS OF METAL WAS OBTAINED BY THE USE OF AN INHIBITOR; (B) THE TEST PANELS SHAPED TO MORE CLOSLEY RESEMBLE AUTOMOBILE BODY CONDITIONS SHOWED THE GREATER AMOUNT OF CORROSION; (C) THE HIGHER THE CORROSION RATE,THE LOWER THE EFFICIENCY OF THE INHIBITOR; (D) THE GREATEST CORROSION CAUSED BY SALT SOLUTION OCCURS WHEN THE VEHICLE IS STORED IN A HEATED ENCLOSURE; (E) CORROSION DUE TO DE-ICING SALT IS DEPENDENT ON TIME AND NOT RELATED TO MILEAGE TRAVELED; AND (F) THE INHIBITOR AND THE DE-ICING SALT TEND TO SEGREGATE, SO A METHOD OF MIXING TO PREVENT THIS WOULD BE NECESSARY. ON THE BASIS OF THE RESULTS, A REPORT WAS PRESENTED TO THE COUNCIL OF METROPOLITAN TORONTO, TO THE EFFECT THAT THERE IS INSUFFICIENT JUSTIFICATION FOR AN EXPENDITURE OF THIS NATURE, AS THE USE OF AN INHIBITOR WILL NOT ELIMINATE CORROSION, BUT ONLY RETARD THAT PORTION CAUSED BY SALTING, AND THE AMOUNT OF RETARDATION DOES NOT JUSTIFY THE COST. ALSO THAT THE PROBLEMS OF CORROSION IN MOTOR VEHICLES CAN BE HANDLED MORE ECONOMICALLY AND MORE THOROUGHLY BY THE AUTOMOBILE MANUFACTURERES. /AUTHOR/

  • Supplemental Notes:
    • Vol 41, pp 221-254, 20 FIG, 8 TAB, 8 REF, 2 APP
  • Authors:
    • Grant, G O
  • Publication Date: 1962

Media Info

  • Monograph Title: Proceedings of the 41st Annual Meeting of the Highway Research Board, Washington, D.C., January 8-12, 1962
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00217132
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jan 24 1972 12:00AM