کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9803272 1516464 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On diffusion in the β-NiAl phase
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
On diffusion in the β-NiAl phase
چکیده انگلیسی
Interdiffusion coefficients in the β-NiAl phase over the homogeneity range are determined by the diffusion couple technique in the temperature range of 1000-1200 °C. Intrinsic diffusivities of the species at 1000 °C at different compositions are measured by Kirkendall marker experiments. The variations of the molar volume with composition and partial molar volumes of the species, required for the determination of the diffusion parameters, are calculated using lattice parameter and vacancy concentration. Tracer diffusion coefficients of the species were calculated from the knowledge on intrinsic diffusivities and compared with the data available in the literature, which were measured directly by tracer methods. The influence of the vacancy wind effect is determined on the calculated results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 403, Issues 1–2, 10 November 2005, Pages 147-153
نویسندگان
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