تاثیر بازدارنده ای بر پایه ایمیدازولین بر خوردگی فولاد API 5L Gr.B در آب دریای ساختگی
محورهای موضوعی : عملیات حرارتی
آرش فتاح الحسینی
1
(استادیار، گروه مهندسی مواد، دانشکده مهندسی، دانشگاه بوعلی سینا)
صادق مومنی
2
(دانش آموخته کارشناسی ارشد، گروه مهندسی مواد، دانشکده مهندسی، دانشگاه بوعلی سینا)
کلید واژه: بازدارنده, مقاومت پلاریزاسیون, رفتار خوردگی, فولاد کربنی API 5L Gr.B,
چکیده مقاله :
در این پژوهش، رفتار خوردگی فولاد کربنی API 5L Gr.B و میزان تزریق بازدارنده ای بر پایه ایمیدازولین در آب دریای ساختگی بررسی شد. برای این منظور پس از غوطه وری نمونه ها در پتانسیل مدار باز به مدت زمان 30 دقیقه، آزمون های پلاریزاسیون تافل و طیف سنجی امپدانس الکتروشیمیایی انجام شدند. منحنی های پلاریزاسیون تافل نشان داد که کم ترین مقدار چگالی جریان خوردگی با افزودن مقدار ppm 40 از بازدارنده به دست می آید. نتایج آزمون های طیف سنجی امپدانس الکتروشیمیایی آشکار ساخت که بیش ترین مقدار مقاومت پلاریزاسیون با افزودن مقدار ppm 40 از بازدارنده به دست می آید که تایید کننده نتایج آزمون های پلاریزاسیون تافل است. هم چنین نتایج آزمون های طیف سنجی امپدانس الکتروشیمیایی آشکار ساخت که بهترین مدار معادل دارای دو ثابت زمانی است.
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