کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7893441 | 1509956 | 2018 | 40 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-temperature oxidation of pure Al: Kinetic modeling supported by experimental characterization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
A composition- and temperature-dependent mobility database including bulk, grain boundary and dislocation diffusion in α-Al2O3 was developed. Three sets of mobility parameters for aluminum diffusion were evaluated. The experimental results including mass gain, oxide scale microstructure resulting from aluminum exposed at 1623â¯K under PO2â¯=â¯0.21 bar for 24â¯h were presented. Kinetic modeling of oxidation of pure aluminum were performed using CALPHAD method. The parameter set supporting that aluminum diffusion in α-Al2O3 has similar order of magnitude with oxygen diffusion can reproduce the experimental oxide thicknesses with good accuracy. Both simulations and experiments indicate internal and external oxidation occur simultaneously.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 139, 15 July 2018, Pages 355-369
Journal: Corrosion Science - Volume 139, 15 July 2018, Pages 355-369
نویسندگان
Na Ta, Lijun Zhang, Qin Li, Zhao Lu, Yan Lin,