کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5447659 | 1511761 | 2017 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanism of Al2O3 coating by cathodic plasma electrolytic deposition on TiAl alloy in Al(NO3)3 ethanol-water electrolytes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Barrier layer was prepared on TiAl alloy by Micro-arc oxidation(MAO) technique in silicate electrolyte, and cathodic plasma electrolytic deposition (CPED) technique was used to fabricate Al2O3 ceramic coating on prepared TiAl alloy in Al(NO3)3 (30 g/L) ethanol electrolytes with different water content by volume. Microstructure, composition and properties of coatings were analyzed, and mechanisms of different electrolytes were evaluated. The results showed that both arc-voltage and work voltage decreased with the increase of water content. Al2O3 CPED coatings were composed of deposition particles and cracks, and contained α-Al2O3 phase mainly and a small amount of γ-Al2O3 phase. The organic reaction mechanism was studied and the performance of TiAl alloy with CPED coating under 950 °C was superior to TiAl substrate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 202, 1 December 2017, Pages 114-119
Journal: Materials Chemistry and Physics - Volume 202, 1 December 2017, Pages 114-119
نویسندگان
Shaoqing Wang, Faqin Xie, Xiangqing Wu,