کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5459305 1516183 2017 48 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Corrosion resistance of vacuum re-melted Ni60-NiCrMoY alloy coatings
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Corrosion resistance of vacuum re-melted Ni60-NiCrMoY alloy coatings
چکیده انگلیسی
The aim of this study is to provide a detailed insight into the effect of vacuum re-melting on the microstructure and corrosion resistance of plasma sprayed Ni60-NiCrMoY alloy coatings. The microstructure evolution and corrosion behavior of the coatings after vacuum re-melting treatment were comparatively studied. The results showed that the lamellar structures and defects of as-sprayed coating were significantly eliminated by vacuum re-melting. A dense coating with uniformly distributed fine hard phases was obtained after vacuum re-melting treatment. During the salt spray corrosion test, the corrosion weight of re-melted coating increased slowly due to the dense Cr2O3 passive film formed on the surface of re-melted coating. The re-melted coating exhibited higher corrosion potential, lower corrosion current density and higher polarization resistance, indicating an improved corrosion resistance compared with the as-sprayed coating.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 711, 15 July 2017, Pages 659-669
نویسندگان
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