کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803966 | 1516476 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The nucleation sites of primary Si in Al-Si alloys after addition of boron and phosphorus
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The influence of boron (B) and phosphorus (P) on the solidification structures of near eutectic Al-Si piston alloys (ZL109) was investigated. It has been found that the addition of B can promote the precipitation of primary Si crystals, not only enhance the modification efficiency of phosphorus (P) but also reduce the addition level of P. It has also been shown that there are several kinds of heterogeneous nucleation sites of primary Si particles in the alloys modified by boron and phosphorus, respectively, AlP, Al-B-P-Mg and Al-B-Mg compounds. The tensile strength of the piston alloy with 0.2% B addition exceeds that with 0.05% P addition; moreover, owing to form more kinds of the heterogeneous nuclei of primary Si, the solidification structures and tensile strength of the alloys modified with B and P are improved. Compared with the traditional modifying method, the addition of B and P together may be a new and better way to improve the structures and mechanical properties of the ZL109 alloys
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 391, Issues 1â2, 5 April 2005, Pages 90-94
Journal: Journal of Alloys and Compounds - Volume 391, Issues 1â2, 5 April 2005, Pages 90-94
نویسندگان
Xiangfa Liu, Yuying Wu, Xiufang Bian,