Accelerated Corrosion Results for Zinc/Nickel-Plated Automotive Parts Posttreated With Trivalent Chromate Rinse
Final rept. Jan 2006-May 2007
ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
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Electroplated zincnickel components posttreated with trivalent chromate rinse were randomly selected from production lines of a German automotive manufacturer. Both rack- and barrel-plating processes were represented among the samples. These components were then exposed to one of two accelerated corrosion environments, ASTM B 117 Standard Method of Salt Spray Fog Testing, Annu. Book ASTM Stand., 1997 or GM 9540 Accelerated Corrosion Test General Motors Engineering Standards, 1997. Performance under accelerated corrosion conditions far exceeded expectations suggesting viable military use with little or no additional capital expenditure.
- Properties of Metals and Alloys
- Surface Transportation and Equipment