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:: Volume 67, Issue 67 (Summer 2022 2022) ::
Vol.67 No. 67 pp. 24-29 Back to browse issues page
The effects of shear force on size and morphology of the dendrite arm spacing of A356-Al2O3 nano composites
Abstract:   (638 Views)
Al-Si alloys are widely used in the automotive industry. The most important microstructural factor, the changes of which have a great impact on the physical and mechanical properties of cast aluminum composites, is the distance between the dendritic arms. In this study, the effect of applied shear force on the morphology of dendritic arms of composites made by traditional casting, squeeze and semi-solid casting methods has been investigated. The effect of applied shear force, time and temperature of compositing and their effect on dendritic arm morphology have also been investigated. According to the obtained results, the best globular temperature and time for this type of composite in semi-solid state has been calculated. When stirring with a 70 amp electromagnetic current for about 60 seconds, the smallest spherical and smallest α particles are obtained at the same time, which can be expected to have the best mechanical and abrasive properties. 
Article number: 3
Keywords: Al-Si, Automotive, Casting, Nano
Full-Text [PDF 1227 kb]   (90 Downloads)    
Type of Study: Research Study | Subject: Materials and Manufacturing Processes of Engine Components
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The effects of shear force on size and morphology of the dendrite arm spacing of A356-Al2O3 nano composites. JER 2022; 67 (67) :24-29
URL: http://engineresearch.ir/article-1-833-en.html


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Volume 67, Issue 67 (Summer 2022 2022) Back to browse issues page
فصلنامه تحقیقات موتور The Journal of Engine Research
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