کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1602239 | 1005237 | 2006 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxidation resistant Ti-Al-Cr alloy for protective coating applications
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Ternary Ti-Al-Cr alloys offer excellent oxidation stability at elevated temperatures due to the formation of a continuous alumina surface layer during oxidation in air. We have investigated the oxidation kinetics and surface oxide characteristics of several Ti-Al-Cr compositions. It is shown that alloys containing mainly the τ and Laves phase exhibit superior oxidation stability over a wide range of temperatures (750–1100 °C). The best oxidation stability is exhibited by the (Ti0.25Al0.55Cr0.2) alloy containing near 70–75 at. % of τ and 25–30% Laves phases. Further improvement of this alloy's oxidation stability results from synergistic doping by a small amount (01–0.2% atomic) of active metals such as Hf and Y as well as Si (above 1%).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 14, Issue 2, February 2006, Pages 189–197
Journal: Intermetallics - Volume 14, Issue 2, February 2006, Pages 189–197
نویسندگان
G.S. Fox-Rabinovich, D.S. Wilkinson, S.C. Veldhuis, G.K. Dosbaeva, G.C. Weatherly,