Measuring and testing – Embrittlement or erosion
Patent
1998-10-14
1999-08-31
Williams, Hezron
Measuring and testing
Embrittlement or erosion
204404, 73812, 324700, G01N 1702, G01N 332, G01N 2726, G01R 2708
Patent
active
059455942
ABSTRACT:
A method and apparatus for examining the electrochemical kinetics occurring at the surface of a galvanized steel cable undergoing fatigue in the presence of a corrosive environment allows the prediction of the corrosion life of the cable. In one embodiment, an apparatus for detecting localized corrosion in a cable is provided undergoing mechanical fatigue, comprising a weir cell containing an electrolyte and a reference electrode, one or more pulleys, and a motion control device. In other embodiments, methods for detecting and monitoring the electrochemical response of corrosion coupled to fatigue in a galvanized steel cable are provided wherein the potential between a reference electrode and a moveable cable under tension and undergoing fatigue are recorded and/or monitored. In further embodiments, a method and apparatus are provided for inspecting entire runs of cable for localized corrosion, zinc porosity, and corrosion inhibition efficiency. In still further embodiments, methods for the selective application of corrosion protectants to critical cable regions are provided which extend cable corrosion life.
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Kendig Martin
McKie Andrew
Mitchell Michael
Meritor Light Vehicle Systems--France
Soliz Chad
Williams Hezron
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