کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1450007 988720 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Post-fabrication vapor phase strengthening of nickel-based sheet alloys for thermostructural panels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Post-fabrication vapor phase strengthening of nickel-based sheet alloys for thermostructural panels
چکیده انگلیسی

High-temperature metallic systems for use in thermostructural sandwich panels are important for many hypersonic flight systems. The complex three-dimensional geometry of these structures poses fabrication challenges for high-strength, high-temperature alloys. A new processing technique involving post-fabrication strengthening via pack aluminization has been investigated. Aluminization produces a β-NiAl surface layer, which is decomposed in subsequent annealing treatments, distributing Al through the sheet thickness. Microstructural development through the stages of processing is discussed along with mechanical properties of the post-fabrication, precipitation-strengthened sheet. Additionally, the benefit of this process to the oxidation behavior of these structures is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 56, Issue 17, October 2008, Pages 4577–4584
نویسندگان
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