کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7725110 | 1497840 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature dependence of corrosion of ferritic stainless steel in dual atmosphere at 600-800â¯Â°C
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The ferritic stainless steel AISI 441 (EN 1.4509) is exposed for 1000â¯h to air - 3% H2O on one side and to Ar - 5% H2 - 3% H2O on the other at temperatures 600, 700, and 800â¯Â°C. Conditions are chosen to mimic the environment of metallic interconnects in an operating solid oxide fuel cell (SOFC). At 600â¯Â°C, â¼25â¯Î¼m thick Fe2O3/(Fe,Cr)3O4 forms on large parts of the air side of the samples. Reference samples exposed to air - 3% H2O on both sides form thin protective layers of (Cr,Mn)3O4/Cr2O3 at the same temperature. At higher temperatures, 700 and 800â¯Â°C, all samples form protective layers of (Cr,Mn)3O4/Cr2O3 regardless of exposure to single or dual atmosphere. It is concluded that corrosion resistance in a dual atmosphere has an inverse dependence on temperature. Different hypotheses for the underlying cause for the dual atmosphere effect are discussed and compared to the experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 392, 15 July 2018, Pages 129-138
Journal: Journal of Power Sources - Volume 392, 15 July 2018, Pages 129-138
نویسندگان
Patrik Alnegren, Mohammad Sattari, Jan-Erik Svensson, Jan Froitzheim,