کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7963691 1514166 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effects of temperature and aeration on the corrosion of A508III low alloy steel in boric acid solutions at 25-95 °C
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
The effects of temperature and aeration on the corrosion of A508III low alloy steel in boric acid solutions at 25-95 °C
چکیده انگلیسی
The effects of temperature, solution composition and dissolved oxygen on the corrosion rate and electrochemical behavior of an A508III low alloy steel in boric acid solution with lithium hydroxide at 25-95 °C are investigated. In aerated solutions, increasing the boric acid concentration increases the corrosion rate and the anodic current density. The corrosion rate in deaerated solutions increases with increasing temperature. A corrosion rate peak value is found at approximately 75 °C in aerated solutions. Increasing temperature increases the oxygen diffusion coefficient, decreases the dissolved oxygen concentration, accelerates the hydrogen evolution reaction, and accelerates both the active dissolution and the film forming reactions. Increasing dissolved oxygen concentration does not significantly affect the corrosion rate at 50 and 60 °C, increases the corrosion rate at 70 and 80 °C, and decreases the corrosion rate at 87.5 and 95 °C in a high concentration boric acid solution with lithium hydroxide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 480, November 2016, Pages 88-99
نویسندگان
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