کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
12039552 | 1007993 | 2019 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxidation behavior of a Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 high-entropy bulk metallic glass
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, the oxidation behavior of a supercooled Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 HE-BMG was investigated. The mass gain of specimens during oxidation is very limited, and the maximum value is lower than 0.08â¯Ãâ¯10â2â¯g/cm2 after two hours of insulation. With the insulation duration prolonging, the mass gain decreases, indicating that the oxides formed are not stable and could decompose after long-term heating. Meanwhile, the oxidation kinetics doesn't follow the parabolic rate law, indicating that it is not a diffusion-controlled process. Even for specimens oxidized at 713â¯K for 120â¯min, they are still fully amorphous. No surface precipitates, as well as continuous oxide scale structures, are formed even after oxidation for 120â¯min at 753â¯K. Therefore, it is indicated that this HE-BMG has strong thermal stability and oxidation resistance, which is much promising for thermoplastic forming.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 236, 1 February 2019, Pages 135-138
Journal: Materials Letters - Volume 236, 1 February 2019, Pages 135-138
نویسندگان
Mao Zhang, Pan Gong, Ning Li, Guangping Zheng, Lei Deng, Junsong Jin, Qiaomin Li, Xinyun Wang,