کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1622273 | 1516400 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modification of hypoeutectic Al-Si alloys with scandium
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Modification of hypoeutectic Al-Si alloys with scandium Modification of hypoeutectic Al-Si alloys with scandium](/preview/png/1622273.png)
چکیده انگلیسی
The present study was undertaken to investigate the effects of Sc on the modification of Al6Si0.25Mg alloy. The two levels of scandium used were 0.2Â wt.% or 0.4Â wt.%. For each treated condition, the mean shape factor of eutectic Si was determined to quantify the level of the modification effect. It was found that a Sc addition of only 0.2Â wt.% modified eutectic Si by changing its morphology towards a rounded and fibrous shape. Zr, which is usually added together with Sc in wrought aluminum alloys, was also studied to observe any possible effect on modification. The results show that addition of Zr together with Sc increases the effectiveness of modification by Sc. Thermal analysis was applied to understand how Sc affects solidification. From the thermal analysis results, it was observed that Sc reduced the eutectic growth temperature, which is similar to the results from modification using Sr.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 477, Issues 1â2, 27 May 2009, Pages 454-460
Journal: Journal of Alloys and Compounds - Volume 477, Issues 1â2, 27 May 2009, Pages 454-460
نویسندگان
Wattanachai Prukkanon, Nakorn Srisukhumbowornchai, Chaowalit Limmaneevichitr,