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Study of corrosion ofAI- bronze in Sodium Chioride Solution in the Presence ofbenzotriazole
دراسة تاكل برونز - المنيوم في كلوريد الصوديوم بوجود بنزوترايازول

Author: Ahlam-M- Farhan احلام محمد فرحان
Journal: Baghdad Science Journal مجلة بغداد للعلوم ISSN: 20788665 24117986 Year: 2004 Volume: 1 Issue: 2 Pages: 289-294
Publisher: Baghdad University جامعة بغداد

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Abstract

The corcosion behoviour of Aluminum bronze in sodium chloride solution has been studied ^tentiostatically at five temperatures in the range 293-313K.The corrosion potential shifted to more negative values with increasing temperature. The corrosion current density increased with increasing temperature. Values of Tal'el slopes and the transfer coefficients indicated hydrogen evolution reaction to occur at the cathode and mainly the dissolution at the anode.Benzotriazole (BTA) had an inhibiting effect ٠١١ the corrosion of the Al-bronze in deaerated NaCl solution at a concentration (1*10'ؤ- IxlO‘1) mol dm'^ over the temperature range 293-313K. Values of the protection efficiency and kinetics parameters were obtained from the corrosion current densities. 'I’he results indicated that corrosion reaction on Al-bronze occurred on surface sites having different energies of activation.

تمت دراسة السلوك التاكلي برونز - المنيوم في كلوريد الصوديوم بوجود في خمسة خمسة درجات حرارية

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