کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7895291 | 1509997 | 2015 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of microstructure and oxidation behavior between Pt-free and Pt-modified δ-Ni2Si coatings on Ni-based superalloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Comparison of microstructure and oxidation behavior between Pt-free and Pt-modified δ-Ni2Si coatings on Ni-based superalloys Comparison of microstructure and oxidation behavior between Pt-free and Pt-modified δ-Ni2Si coatings on Ni-based superalloys](/preview/png/7895291.png)
چکیده انگلیسی
This study investigated the microstructure and oxidation behavior of Pt-free and Pt-modified δ-Ni2Si coatings prepared by codeposition of Al and Si. The composition (in wt.%) of packs was 1Al-4NH4Cl-xSi-(95 â x)Al2O3 with different Si levels (x = 4, 6, 8, 10). Pt promotes uphill diffusion of Al in Pt-modified coatings while Cr tends to outward diffuse into Pt-free coatings. The isothermal oxidation tests indicated the coating with 10 wt.% Si had good oxidation performance. After oxidation, the microstructure of Pt-modified coatings was Cr2NiO4 + NiO or Cr2NiO4 + NiO + Al2O3 while that of Pt-free coatings was Cr2O3 + Ni31Si12 + Al2O3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 98, September 2015, Pages 211-222
Journal: Corrosion Science - Volume 98, September 2015, Pages 211-222
نویسندگان
C. Fu, C.H. Wang, Z.M. Ren, G.H. Cao,