کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
828629 1470323 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication and characterization of closed-cell magnesium-based composite foams
ترجمه فارسی عنوان
ساخت و خصوصی سازی فوم های کامپوزیتی مبتنی بر منیزیم بسته
کلمات کلیدی
مواد متخلخل کامپوزیت فلزی، اموال فشرده، فتوشاپ ماتریس متالیک
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی


• CMs can homogeneously distribute in AZ31 composite foams.
• Porosity of the foams increased first and then decreased with the increase of CMs.
• Pore size of the foams decreased with CMs contents increasing.
• Proper contents of CMs changed the compression fracture mode of the foams.

Closed-cell AZ31 magnesium alloy foams with different percentages of hollow ceramic microspheres (CMs) are synthesized using modified melt foaming method. The distribution of CMs is investigated and also the effect of CMs on the foaming behaviors (specifically for porosity and pore size) and quasi-static compressive behaviors of Mg-based composite foams are characterized. The results show that CMs distribute in cell walls homogeneously and most of them are penetrated by magnesium alloy melt. In addition, the mean pore size declines with the increase of CMs percentage. Moreover, the overall porosity of the foams increases first and then decreases with the increase of CMs content, and the variation tendency is more obvious when the foaming temperature is lower (namely 680 °C). Besides, proper percentage of CMs changes the compression fracture mode of the foams from brittleness to ductility. OM/SEM/EDS/XRD detections and finite element analysis are applied to explain the reasons.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 74, 5 June 2015, Pages 36–43
نویسندگان
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