کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9803450 1516467 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wear and thermal properties of Zr-based amorphous surface alloyed materials fabricated by high-energy electron beam irradiation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Wear and thermal properties of Zr-based amorphous surface alloyed materials fabricated by high-energy electron beam irradiation
چکیده انگلیسی
Zr-based amorphous surface alloyed materials were fabricated by high-energy electron beam irradiation in this study. A mixture of Zr-based amorphous powders and LiF + MgF2 flux was deposited on a pure copper substrate, and then an electron beam was directed on this powder mixture to fabricate a one-layered surface alloyed material. A two-layered surface alloyed material was also fabricated by irradiating electron beam again onto the powder mixture deposited on the one-layered surface alloyed material. The microstructural analysis results indicated that a number of coarse crystalline phase particles were formed in the one-layered surface alloyed layer, whereas a small amount of fine and hard crystalline particles were homogeneously distributed in the amorphous matrix of the two-layered surface alloyed layer. Owing to these fine and hard crystalline particles, the hardness and wear resistance of the two-layered surface alloyed layer improved over the one-layered surface alloyed layer or other kinds of surface alloyed layers. The thermal conductivity of the two-layered surface alloyed layer was much lower than that of titanium-alloy-based or stainless-steel-based surface alloyed layers. These findings suggested the possibility of applying Zr-based amorphous surface alloyed materials to high wear-resistant thermal barrier coatings or parts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 400, Issues 1–2, 1 September 2005, Pages 171-177
نویسندگان
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