Morphological features of silicon rich phase in powder thixoformed spray atomized hyper-eutectic Al-Si alloy

Kiani, M ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.4028/www.scientific.net/ssp.141-143.493
  3. Publisher: Trans Tech Publications Ltd , 2008
  4. Abstract:
  5. Microstructural evolution of the spray atomized and powder thixoformed hyper-eutectic A390 aluminum alloy was investigated. The spray atomized powder revealed homogeneous and very fine silicon particles distribution, due to the rapid solidification of the alloy. The semi-solid powders were extruded into a closed die cavity through a hole for the plastic deformation of the powder particles. A drop forge of 45kg weight at different heights was used in this investigation. Remarkable rearrangement and growth of the silicon rich phase was revealed in the final stage
  6. Keywords:
  7. Aluminum alloys ; Eutectics ; Microstructure ; Morphology ; Rapid solidification ; A390 ; Atomized powders ; Different heights ; Hypereutectic Al-Si alloys ; Morphological features ; Silicon morphology ; Silicon particles ; Thixo-forming ; Silicon alloys
  8. Source: Semi-Solid Processing of Alloys and Composites 10 - Selected, peer reviewed papers from the 10th International Conference on Semi-Solid Processing of Alloy and Composites, S2P 2008, Aachen, 16 September 2008 through 18 September 2008 ; Volume 141-143 , 2008 , Pages 493-498 ; 10120394 (ISSN); 9771012039401 (ISBN)
  9. URL: https://www.scientific.net/SSP.141-143.493