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자료유형
학술저널
저자정보
Bassiouny I. Saleh (Alexandria University) Mahmoud H. Ahmed (Alexandria University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.26 No.9
발행연도
2020.1
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1,430 - 1,440 (11page)

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This paper studies the influence of main parameters on the mechanical properties and wear behaviour of functionallygraded materials pure Aluminum reinforced by various weight fractions of aluminium oxide (Al2O3). A Functionallygraded (FG) pure aluminium/Al2O3 tube was processed by horizontal centrifugal casting method. The hollow tube dimensionsare 230 mm outer diameter x 12 mm thickness x 180 mm length. The properties of these FG tubes were comparedwith unreinforced alloy. Hardness and tensile results in the radial direction showed that the hardness and tensile inaccordance with the gradient microstructure was improved from inner zone to outer zone. Wear tests were carried out fordifferent test duration at a constant sliding speed of 8 m/s and loads applied are 14, 24 and 40 N. In all test conditions thewear rate in the outer layer was minimum compared to other layers. In the surface analysis, scanning electron microscopeindicated the presence of delamination, wear debris and cracks. FG tubes reinforced by Al2O3particles have increasedmechanical properties and wear resistance compared to its unreinforced alloy (matrix alloy) and is suitable for use inautomobile and transport applications.

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