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Environmentally Friendly Surface Treatments for Improvement of Corrosion of Steel Sheets: Synergy Effect by Multicoating
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 Title & Authors
Environmentally Friendly Surface Treatments for Improvement of Corrosion of Steel Sheets: Synergy Effect by Multicoating
Jeon Sangik; Park Chan-Young; Ryou Jin-Ho; Lee Won-Ki;
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Because of the toxicity of hexavelant chromium ion, treatments of metallic surface with chromate compounds to retard corrosion are undesirable for safety control in industrial uses and protection of environment. In this study, we investigated several compounds such as inorganic, organic, and polymer materials in order to sub­stitute the chromate conversion treatment on steel sheet. The corrosion property was investigated in a salt spray tester with 3.5 The results showed that the zirconium/silane/polymer triple coatings on the galvanized steel exhibited a significant retardation of corrosion. Although the multicoating system needs a com­plexed processing, we can confirm a possibility of development of a chromate-free chemical conversion treat­ment for galvanized steel sheet.
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저장온도와 박피방식에 따른 '축파' 박피밤의 품질특성 변화,오성일;김만조;

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