کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4994659 1458035 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal features of plasma electrolytic heating of titanium
ترجمه فارسی عنوان
ویژگی های حرارتی گرمایش الکتریکی پلاسما تیتانیوم
کلمات کلیدی
الکترولیز پلاسما، مدل محاسبه دما،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The study considers heat exchange relations in terms of anode plasma-electrolytic treatment of titanium. The density of heat fluxes from vapour-gas envelope (VGE) to the anode-sample, electrolyte and atmosphere are experimentally determined. A model of heating temperature calculation considering heat transfer to the atmosphere along the cross-section of the workpiece is developed. Interrelations between envelope thickness and voltage as well as temperature-voltage characteristic (TVC) of the process are found. It is established that, other conditions being equal, anode heating of titanium is characterized by higher temperature at lower values of current and density of the heat flux from the vapor-gas envelope, compared with treatment of steel workpieces. The resulting dependences are confirmed by numerical evaluation with the use of the developed model and are explained by lower specific heat conductivity of titanium, contributing to a decrease of heat transfer from the heated part of the sample to the part protruding over electrolyte surface. The heat flux from the envelope to the electrolyte is found to be determined by power input in the system and independent of the anode material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 107, April 2017, Pages 1104-1109
نویسندگان
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