Manufacturing Technology 2015, 15(4):515-520 | DOI: 10.21062/ujep/x.2015/a/1213-2489/MT/15/4/515
Phase Segregation during Processing of Semi-Solid Slurry by Rheocasting Method SEED
- 1 CTU in Prague, Faculty of Mechanical engineering, Dept. of Manufacturing Technology, Technická 4, 166 04 Prague, Czech Republic
- 2 Kovolis Hedvikov, a.s., Hedvikov 1, 538 43, Třemošnice, Czech Republic
The paper describes specific phenomena of semi-solid casting process, especially rheo-casting method SEED, which uses mechanical swirling for reaching proper structure in semi-solid state. The eutectic segregation during processing of semi-solid slurry can cause specific casting defects. Heat treated alloy AlSi7Mg0.3 was applied for producing castings. For observing structure, metallographic observation by light and SEM microscopy was used as well as spectral analysis.
Keywords: Semi-Solid, Rheo-Casting, Phase Segregation, Aluminium Alloys, Casting Defects
Published: September 1, 2015 Show citation
References
- DA SILVA M., LEMIEUX A., CHEN X.G. (2009). Characterization of semi-solid slurry using a novel "Rheo-Characterizer" apparatus. In: Journal Of Materials Processing Technology, 209, pp. 5892-5901.
Go to original source...
- Foundry Product SEED. (2015) Retrieved April 10 2015 from: http://www.stas.com/images/stories/Document/SEED/seed_brochure.pdf
- LASHKARI O., AJERSCH F., CHARETTE A., CHEN X.G. (2008). Microstructure and rheological behavior of hypereutectic semi-solid Al-Si alloy under low shear rates compression test. In: Materials Science and Engineering A., pp. 377-382.
Go to original source...
- LEMIEUX A., LANGLAIS D., BOUCHARD X., CHEN X.G. (2010). Effect of Si, Cu and Fe on mechanical properties of cast semi-solid 206 alloys. In: Transactions of Nonferrous Metals Society of China, 20, pp. 1555-1560.
Go to original source...
- TEBIB M. AJERSCH F. GRANT CHEN X. (2012). Rheological Properties and Mocrostructure of Hypereutectic Semi-solid Al-Si-Mg Alloys Using Rheo-casting Route. In: S2P 2012 - 12th International Conference on Semi-Solid Processing of Alloys and Composites, pp. 1 - 7.
- Semi-Solid Thixoforming: Part two. In: Total Materia. (2013) Received August 27 2015 from http://www.keytometals.com/freedemo/page.aspx?ID=CheckArticle&site=ktn&LN=EN&NM=323.