کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1661486 | 1008426 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of pre-oxidation atmosphere on the durability of EB-PVD thermal barrier coatings with CoNiCrAlY bond coats
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effects of pre-oxidation heat treatment on oxidation behavior and thermal cycle life of electron-beam physical deposited (EB-PVD) thermal barrier coatings (TBCs) with CoNiCrAlY bond coats were investigated as a function of the pO2 of the pre-oxidation atmosphere. The pO2 of the pre-oxidation atmosphere was controlled by using a solid-state electrochemical oxygen pump system. The purity and microstructure of the continuous Al2O3 layer formed on the bond coat during pre-oxidation at 1050 °C were highly influenced by the pO2 of the atmosphere. High purity α-Al2O3 with large grain size was formed on the bond coats under a pO2 of 10− 12–10− 9 Pa, which resulted in a lower growth rate of TGO and longer lifetime.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 202, Issue 12, 15 March 2008, Pages 2743–2748
Journal: Surface and Coatings Technology - Volume 202, Issue 12, 15 March 2008, Pages 2743–2748
نویسندگان
Mineaki Matsumoto, Takeharu Kato, Kazuyuki Hayakawa, Norio Yamaguchi, Satoshi Kitaoka, Hideaki Matsubara,