Emad Toma Bane Karash,Saeed Rajab Yassen,Mohammed Taqi Elias Qasim
Issue:
Volume 3, Issue 5, September 2015
Pages:
33-41
Received:
2 January 2016
Accepted:
12 January 2016
Published:
25 January 2016
DOI:
10.11648/j.ajma.20150305.11
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Abstract: In this study, friction stir process (FSP) is used to enhance surface properties of the AA6061-T6 alloy. Friction stir process tool travel and rotation speeds effects on the surface topography, hardness, tension mechanical properties and microstructures of Aluminum alloy were studied. The cylindrical tool without pin diameter (20 mm), tool rotational speed (800 rpm) and travel speed (60 rpm) used in all friction stir processes (FSW) in this study. The test results and analysis of the current study indicated that the hardness increases with the cutting depth in the mixing friction processes. The crystal structure analysis revealed that the hardness increased in the case of two stages twice the case of one stage. It was also noted that the size of the engineering flaws granules became smaller and the size of these granules increased with the cutting depth. In addition, the ratio of granules size and the friction in the case of two stages was twice the case of one stage.Abstract: In this study, friction stir process (FSP) is used to enhance surface properties of the AA6061-T6 alloy. Friction stir process tool travel and rotation speeds effects on the surface topography, hardness, tension mechanical properties and microstructures of Aluminum alloy were studied. The cylindrical tool without pin diameter (20 mm), tool rotation...Show More
Abstract: The problem of peristaltic transport of a pseudoplastic nanofluid through a porous medium in a two dimentional inclined tapered asymmetric channel has been made. Convective conditions of heat and mass transfer are employed. The problem has been further simplified with the authentic assumptions of long wavelength and small Reynold’s number. The governing equations for the balance of mass, momentum, temperature and volume fraction for pseudoplastic nanofluid are formulated. Effect of involved parameters on the flow characteristics have been plotted and examined.Abstract: The problem of peristaltic transport of a pseudoplastic nanofluid through a porous medium in a two dimentional inclined tapered asymmetric channel has been made. Convective conditions of heat and mass transfer are employed. The problem has been further simplified with the authentic assumptions of long wavelength and small Reynold’s number. The gove...Show More
