کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1626722 1516444 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of nano-Y2O3 containing magnesium nanocomposites using solidification processing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Development of nano-Y2O3 containing magnesium nanocomposites using solidification processing
چکیده انگلیسی

In the present study, nano-Y2O3 particulates containing magnesium nanocomposites were synthesized using an innovative disintegrated melt deposition technique followed by hot extrusion. Microstructural characterization of the composite samples showed retention of reinforcement, significant grain refinement of magnesium matrix, and the presence of minimal porosity. Mechanical properties characterization revealed that the presence of nano-Y2O3 reinforcement lead to significant improvement in hardness, 0.2% YS and UTS of the magnesium matrix. The ductility of magnesium matrix increases to a peak with 0.22-vol% of nano-Y2O3 but started to reduce with subsequent increase in the amount of Y2O3. The results further revealed that the combination of 0.2% YS, UTS, and ductility of magnesium matrix with up to 0.66-vol% of nano-Y2O3 reinforcement remained much superior even when compared to magnesium reinforced with much higher volume percentage of micrometer size SiC. An attempt is made in the present study to correlate the effect of nano-Y2O3 as reinforcement and its increasing amount with the microstructural and mechanical properties of magnesium.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 429, Issues 1–2, 21 February 2007, Pages 176–183
نویسندگان
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