کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8044174 | 1518916 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modelling the structure and mechanical properties of oxide layers obtained on biomedical Ti-6Al-7Nb alloy in the thermal oxidation process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The influence of thermal oxidation parameters on oxidation kinetics, morphology, thickness and mechanical properties of oxide layers obtained on biomedical Ti-6Al-7Nb alloy was determined during tests. Thermal oxidation was carried out in varied temperature/time conditions (temperature: 600, 700, 800â¯Â°C, time: 6, 24, 48, 72â¯h). It has been demonstrated that temperature has a more important influence on the oxide scale formation process. It has been found that increasing oxidation temperature from 600 to 800â¯Â°C causes a 10-fold increase in mass. Thickness of formed oxide layers changed as oxidation time and temperature increased. Layers obtained at 600â¯Â°C had small thickness (up to 0.22â¯Î¼m). Thicker layers (from 0.32 to 1.05â¯Î¼m) were obtained after oxidation at 700â¯Â°C. Oxidation at 800â¯Â°C caused formation of the thickest oxide layers (from 1.56 to 5.42â¯Î¼m). Thermal oxidation parameters affected hardness of the obtained oxide layers, which increased along with oxidation time and temperature. Higher hardness below the oxide layer has also been observed, which indicates the presence of an intermediate diffusion zone. The tests have shown that thermal oxidation decreases mechanical and plastic properties of Ti-6Al-7Nb alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 154, August 2018, Pages 309-314
Journal: Vacuum - Volume 154, August 2018, Pages 309-314
نویسندگان
Krzysztof AnioÅek, Adrian Barylski, Marian Kupka,