کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1605001 1516208 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase transformation mechanism of Al4C3 by the diffusion of Si and a novel method for in situ synthesis of SiC particles in Al melt
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Phase transformation mechanism of Al4C3 by the diffusion of Si and a novel method for in situ synthesis of SiC particles in Al melt
چکیده انگلیسی
The in situ synthesis of SiC particles in Al melt is reasonably difficult since carbon has quite poor wettability and extremely tiny solubility in the melt. A liquid-solid reaction couple was designed in this paper. Si atoms diffuse into Al4C3 phase, resulting in the gradual transformation Al4C3→Al4SiC4→SiC. The concentration of Si is a key factor affecting the transformation procedure, and SiC can only be synthesized at a relatively high Si content. By applying the mechanism into casting method, SiCp reinforced Al18Si alloys were successfully prepared, and the hardness, wear resistance and tensile properties were improved. The method provides a novel suggestion for the preparation of in situ SiC particles reinforced Al-Si matrix composites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 685, 15 November 2016, Pages 91-96
نویسندگان
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