Corrosion behaviour of copper alloys in natural sea water and ...
Corrosion behaviour of copper alloys in natural sea water and ...
Corrosion behaviour of copper alloys in natural sea water and ...
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0-50-100CuAlE/ECS <strong>in</strong> mV-150-200-250A45 AMPCOmean corrosion rate = 37 µm/yearmean localised corrosion rate =1.3 mm/yearA45-300-350CuAl9 Ni3 Fe2mean corrosion rate = 58 µm/yearmean localised corrosion rate=1.13 mm/year.-4000 7 14 21 28 35 42 49 56 63 70 77 84 91moyenne A45Test duration <strong>in</strong> daysFigure 7: Eoc <strong>in</strong> <strong>natural</strong> <strong>sea</strong> <strong>water</strong>Comparison between A45 <strong>and</strong> CuAl9Ni3Fe2moyenne CuAl10000A451000Rp <strong>in</strong> OhmsCuAl100100 7 14 21 28 35 42 49 56 63 70 77 84Test duration <strong>in</strong> daysmoyenne A45moyenne CuAlFigure 8: Rp <strong>in</strong> <strong>natural</strong> <strong>sea</strong> <strong>water</strong>-Comparison between A45 <strong>and</strong> CuAl9Ni3Fe213
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