کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9572398 | 1503708 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of the diffusion coefficient of nitrogen in Fe4N1âx nitride layers during microwave post-discharge nitriding
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The evaluation of the growth kinetics of Fe4N1âx (γâ²) phase under microwave post-discharge nitriding in ARMCO iron has been carried out through this project. A mathematical model that considers the iron nitride growth is proposed in a non-saturated nitrogen medium with a finite length of 2L, where the interface concentrations remain constant during the treatment. Growth kinetics of γâ², during microwave post-discharge nitriding process, is rapid in short times of treatment, due to the presence of neutral and ionized species, which produce a rapid evolution of nitrogen concentration on the substrate surface. Concentration on the surface is controlled by the parameters of the process for γⲠnitride formation. Experimental results achieved during the process are compared to the mathematical model forecast, along with the results presented by other authors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 249, Issues 1â4, 15 August 2005, Pages 54-59
Journal: Applied Surface Science - Volume 249, Issues 1â4, 15 August 2005, Pages 54-59
نویسندگان
I. Campos, R. Torres, O. Bautista, G. RamÃrez, L. Zuñiga,