کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9818222 1518777 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combined nuclear microprobe and TEM study of corrosion pit nucleation by intermetallics in aerospace aluminium alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Combined nuclear microprobe and TEM study of corrosion pit nucleation by intermetallics in aerospace aluminium alloys
چکیده انگلیسی
A microscopic study of the onset of pitting corrosion has been conducted on the important aerospace alloy AA2024-T3 with the aim of understanding the role of intermetallic particles in triggering the formation of deep pits in the corroding surface. By trace element and correlation mapping using a 3 MeV H+ microprobe, it has been shown that Cu-Fe-Mn-Al particles in conjunction with S-phase particles have a high correlation with pit nucleation. Al-Cu correlation diagrams can be used to show dealloying of S-phase particles (CuMgAl2). Transmission electron microscopy and elemental mapping were used to look at the distribution of elements, particularly Cu, within pits.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 231, Issues 1–4, April 2005, Pages 457-462
نویسندگان
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