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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Cast Shop Technology: Fundamentals of Aluminum Alloy Solidification Joint Session
Presentation Title Effective Nanoparticles Feeding Treatment in Casting of A356/ZrO2 Nano-reinforced Composite
Author(s) H. Toweri, W. Hoziefa, Adel El-Shabasy, Iman El Mahallawi
On-Site Speaker (Planned) Iman El Mahallawi
Abstract Scope Recent studies have shown that the properties of cast aluminium alloys are modified by the insertion of reinforcement nanoparticles. In this study, A356.0 aluminum alloy was reinforced with TEM characterized (30nm) ZrO2 ceramic particles, using stir casting technique in semisolid state. Different nanoparticles feeding routes like direct, capsulate & regular treatments were studied at different particles addition rates of 1%, 2% & 3%. The effect of nano ZrO2 reinforcement on the cast microstructure produced by different treatments was examined using Optical Microscopy (OM) and Scanning Electron Microscopy (SEM). The mechanical properties were found to be enhanced by the different routes. However capsulate feeding mechanism, of 3% ZrO2 nano particles, was the most effective in particles dispersion & silicon refinement, with an increase in ultimate strength & hardness of the as-cast cast sample from (119 MPa & 22.5 HRC) to (165.5 MPa & 60.4 HRC), after treatment respectively.
Proceedings Inclusion? Planned: Light Metals


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