کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7973288 1514625 2018 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Zr content on damping property of Mg-Zr binary alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Effect of Zr content on damping property of Mg-Zr binary alloys
چکیده انگلیسی
The damping property expressed by internal friction tan⁡φ of as-cast Mg-Zr binary alloys with Zr content from 0.6 to 5.0% was experimentally measured under conditions of changing temperature from ambient temperature Tam to 600 K (327 °C), vibration frequency f from 1.0 to 10.0 Hz, strain ε from 1.0 × 10-6 to 1.0 × 10-3, and heating rate ν from 2 to 5 K/min. The experimental results indicate that the damping property of prepared as-cast Mg-Zr binary alloys can be effectively promoted by increasing either heating rate ν or strain ε. Increasing vibration frequency f can effectively decrease the damping property, however increasing vibration frequency f has little effect on the plots of internal friction tan⁡φ against temperature T, i.e., T-tanφ curve, under the condition of f > 5.0 Hz. The optimal Zr content of the as-cast Mg-Zr binary alloys with better performance of damping property is recommended to be 0.6 mass % in a range of Zr content from 0.6 to 5.0%. Furthermore, the effect of strain ε on damping property for the as-cast Mg-Zr binary alloys can be ideally explained by dislocation pinning theory or the G-L model, while the influence of temperature T on damping property for the as-cast Mg-Zr binary alloys complies with the viscoelastic relaxation behaviour.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 718, 7 March 2018, Pages 418-426
نویسندگان
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