کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
828835 1470332 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of inclusion of SiC particulates on the mechanical resistance behaviour of stir-cast AA6063/SiC composites
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Effect of inclusion of SiC particulates on the mechanical resistance behaviour of stir-cast AA6063/SiC composites
چکیده انگلیسی


• AA6063/SiC composites with different weight percent are stir cast.
• Resistance properties against indentation, stretching force and sliding force are studied.
• Increase in initiation of cleavage facets and reduces the tensile strength for 15% SiC.
• Transition from micro ploughing to micro cutting wear mechanism is less due to SiC inclusion.

This study investigates the mechanical resistance behaviour of AA6063 particulate composites with the inclusion of micron-sized silicon carbide (SiC) particles with different weight percentages in an AA6063 aluminium matrix. AA6063/SiC particulate composites containing 0, 5, 10, and 15 weight percent of SiC particles were produced by stir casting. Standard mechanical tests were conducted on the composite plates, and the mechanical resistance to indentation, tensile force and sliding force are evaluated. It has been observed that upon addition of SiC particles, the resistance against indentation is increased and the resistance against tensile force is initially increased and then decreased. Furthermore, using scanning electron microscopy (SEM), the fracture appearance of the broken specimen subjected to tensile force and morphological changes in the surface subjected to sliding force are analysed. The SEM images reveal that the addition of SiC particles in the AA6063 aluminium matrix initiates more cleavage facets. This leads to brittle fracture in the specimen subjected to tensile forces and less transition from material displacement to material removal in the specimen subjected to sliding forces.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design (1980-2015) - Volume 65, January 2015, Pages 511–520
نویسندگان
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