Cadmium Substitution - garteur
Cadmium Substitution - garteur
Cadmium Substitution - garteur
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GARTEUR LIMITED<br />
C.6 Tables<br />
Test<br />
Barrier<br />
Properties<br />
Sacrificial<br />
Properties<br />
Neutral salt fog undamaged panels scribed panels<br />
Accelerated<br />
Corrosion Tests MASTMAASIS undamaged panels scribed panels<br />
100% humidity undamaged panels scribed panels<br />
Outdoor<br />
exposure undamaged panels scribed panels<br />
Open circuit potential<br />
measurements<br />
Electrochemical polarisation sweeps<br />
measurements scratch model specimens<br />
potential drop measurements<br />
Table C1; Summary of corrosion tests to determine barrier and sacrificial properties of coatings<br />
Post plating treatment<br />
Coating Test Unpassivated Passivated<br />
Location Thick(μm) Time(h) Thick(μm) Time(h)<br />
Shorts 2523h >3723h<br />
ED <strong>Cadmium</strong> Fokker 15-20 >2000h 7 >2000h<br />
DERA 18.4 792h 15.4 2400h<br />
Shorts 368-528h >3723h<br />
ED Zinc-nickel Fokker 5-10 270, >2000 10-12 >2000h<br />
DERA 16.9 440h 14.2 1080h<br />
ED Zinc-cobaltiron<br />
Fokker 10 432,672, 10-12 >2000<br />
600, 672h<br />
DERA 18.1 310 16.8 1320<br />
PVD Aluminium DERA 22.6 350h 29.2 1576h<br />
ED Aluminium DERA 14.1 216 17.3 1190<br />
UBMS Almagnesium<br />
DERA 10.2 710 11.1 1360<br />
Delta-tone/Deltaseal<br />
Delta-tone<br />
DERA 18.2 2056<br />
Delta-tone/Delta-seal<br />
(984) (984/985)<br />
Shorts >3723 >3723<br />
SermeTel Fokker 35 >2000 40 >2000<br />
DERA 43.2 3020 36.7 5680<br />
Table C2; Neutral salt spray (ASTM B117) - panels not scribed<br />
Time to red<br />
GARTEUR SM/AG17 TP128 Page 63
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