کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5441159 1510374 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Co substituted Zr-Cu-Al-Ni metallic glasses with enhanced glass-forming ability and high plasticity
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Co substituted Zr-Cu-Al-Ni metallic glasses with enhanced glass-forming ability and high plasticity
چکیده انگلیسی
Zr-based bulk metallic glasses have been considered as promising engineering materials. However, their widespread application is limited by their contrasting properties of glass-forming ability (GFA) and plasticity. Herein, the effects of Ni substitution by Co on the GFA and plasticity of the representative Zr-based metallic glass of Zr65Cu17.5Al7.5Ni10 were investigated. A series of Zr65Cu17.5Al7.5Ni10 − xCox (x = 0, 2, 4, 6, 7, 8, 10) rod samples with 2 mm in diameter were prepared by injection copper mold casting method. Amorphous structure was successfully achieved when the Co content is less than 8 at.%. Importantly, the Co addition contributed to significant enhancements in both GFA and plasticity of the amorphous Zr65Cu17.5Al7.5Ni10 − xCox (x = 0, 2, 4, 6, 7) alloys. The as-prepared Zr65Cu17.5Al7.5Ni8Co2 amorphous alloy shows the best and attractive performance with a supercooled liquid region width of 80 K and a compressive plasticity of 7.4%, which are much higher than 50 K and 0.2% of the pristine Zr65Cu17.5Al7.5Ni10 amorphous alloy, demonstrating that the Co substituted Zr-Al-Ni-Cu metallic glass has the potential to be used for engineering applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 473, 1 October 2017, Pages 120-124
نویسندگان
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