کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1599227 | 1005083 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solidification structure of eutectic Al-Si alloy under a high magnetic field-aid-electromagnetic vibration
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Solidification structure of eutectic Al-Si alloy under a high magnetic field-aid-electromagnetic vibration Solidification structure of eutectic Al-Si alloy under a high magnetic field-aid-electromagnetic vibration](/preview/png/1599227.png)
چکیده انگلیسی
An electromagnetic vibration was generated by simultaneously imposing a strong static magnetic field (up to 10 T) and an alternative electricity current to the metal. Its effects on the solidification structure of eutectic Al-Si alloy have been investigated experimentally. It is found that the eutectic structure has been refined by solely imposing high magnetic field while it is coarsened under the electromagnetic vibration. Furthermore, polyhedral Si grains and non-dendritic α-Al appeared when the electromagnetic vibration strength was strong enough. The refining of eutectic structure is attributed to the decrease of diffusion coefficient caused by the strong magnetic field. The coarseness of eutectic structure may be attributed to the convection caused by electromagnetic vibration. Strong convection may break co-operative growth of eutectic phases to form polyhedral Si grains and non-dendritic α-Al.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Metallurgica Sinica (English Letters) - Volume 22, Issue 3, June 2009, Pages 191-196
Journal: Acta Metallurgica Sinica (English Letters) - Volume 22, Issue 3, June 2009, Pages 191-196
نویسندگان
Jianbo YU, Zhongming REN, Weili REN, Kang DENG, Yunbo ZHONG,