Al-Si-Re Alloys Cast by the Rapid Solidification Process / Stopy Al-Si-Re Odlewane Metodą Rapid Solidification

• Main Authors: Szymanek M., Augustyn B., Kapinos D., Żelechowski J., Bigaj M.
• Format: Article
• Language: English
• Published: Polish Academy of Sciences 2015-12-01
• Series: Archives of Metallurgy and Materials
• Subjects: aluminium alloy; Rapid Solidification; grain refinement; ultrafine structure
• Online Access: http://www.degruyter.com/view/j/amm.2015.60.issue-4/amm-2015-0488/amm-2015-0488.xml?format=INT

The aim of the studies described in this article was to present the effect of rare earth elements on aluminium alloys produced by an unconventional casting technique. The article gives characteristics of the thin strip of Al-Si-RE alloy produced by Rapid Solidification (RS). The effect of rare earth elements on structure refinement, i.e. on the size of near-eutectic crystallites in an aluminium-silicon alloy, was discussed. To determine the size of crystallites, the Scherrer X-ray diffraction method was used. The results presented capture relationships showing the effect of variable casting parameters and chemical composition on microstructure of the examined alloys. Rapid Solidification applied to Al-Si alloys with the addition of mischmetal (Ce, La, Ne, Pr) refines their structure.