کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8044167 1518915 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Kinetic aspects of low-pressure nitriding process
ترجمه فارسی عنوان
جنبه های جنبشی روند نیتروژن کم فشار
کلمات کلیدی
نیتروژن کم فشار، سینتیک، مکانیسم، پتانسیل نیترید، نرخ انحلال،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی
The purpose of this work was to theoretically and experimentally study the reactions that occur during low-pressure nitriding. A series of specimens made of 42CrMo4 and 41CrAlMo7 and C22 steels were low-pressure nitrided. The structure of the materials, the hardness and the thickness of the nitride layers, as well as any reactions that occurred in the gas and solid phases were tested. The process kinetics were discussed. The findings showed that a build-up of the nitrided layer from a low-pressure process depends on the kinetics of surface processes. However, a characterization of the process with nitriding potential is not justified and should be replaced with a rate of ammonia dissociation in low-pressure processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 155, September 2018, Pages 292-299
نویسندگان
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