کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1480087 1510394 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved mechanical properties and pitting corrosion resistance of Zr65Cu17.5Fe10Al7.5 bulk metallic glass by isothermal annealing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Improved mechanical properties and pitting corrosion resistance of Zr65Cu17.5Fe10Al7.5 bulk metallic glass by isothermal annealing
چکیده انگلیسی
Isothermal annealing has been used to improve the mechanical properties and the pitting corrosion resistance of a new bulk metallic glass (BMG) alloy, Zr65Cu17.5Fe10Al7.5. The as-cast alloy was annealed at the temperature below the glass transition temperature (Tg) for 0.5, 1.0, 2.0, and 4.0 h. A considerable large plasticity of 7.1% is achieved in the alloy annealed for 1.0 h without loosing its strength, which can be attributed to the formation of nanocrystallites with diameter 5-12 nm in the glassy matrix. In addition, presumably due to the decrease in the free volume, appropriate annealing (t = 0.5 and 1.0 h) can increase the pitting corrosion resistance significantly of the as-cast alloy. Thus, Zr-based metallic glass matrix composite has a promising potential for engineering and biomedical applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 452, 15 November 2016, Pages 50-56
نویسندگان
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