Model Cut-edge Formed on Zinc Coated Steels by Laser Machining and Its Corrosion Behavior
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Laser machining technique, which is used focusing pulse YAG laser beam irradiation was applied to form area ratio controlled model cut-edge on pre painted Zn coated steels. A corrosion behavior of formed model cut-edge was investigated by rest potential measurement in 1 mol m-3 NaCl with and without 0.5 kmol m-3 H3BO4/0.05 kmol m-3 Na2B4O7. The rest potential showed almost constant value with fluctuations. The amplitude of fluctuations increased with exposed area of steel surface. White corrosion products of zinc oxide and simonkollite was formed after the experiments at the formed model cut-edge.
Abstract
Laser machining technique, which is used focusing pulse YAG laser beam irradiation was applied to form area ratio controlled model cut-edge on pre painted Zn coated steels. A corrosion behavior of formed model cut-edge was investigated by rest potential measurement in 1 mol m-3 NaCl with and without 0.5 kmol m-3 H3BO4/0.05 kmol m-3 Na2B4O7. The rest potential showed almost constant value with fluctuations. The amplitude of fluctuations increased with exposed area of steel surface. White corrosion products of zinc oxide and simonkollite was formed after the experiments at the formed model cut-edge.
참고문헌 (11)
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