Modification of eutectic Si in hypoeutectic Al-Si alloys with erbium addition

Conference proceedings article

Authors/Editors

Strategic Research Themes

No matching items found.

Publication Details

Author list: Tantiwaitayaphan T., Pandee P., Limmaneevichitr C.

Publisher: Trans Tech Publications

Publication year: 2017

Volume number: 718

Start page: 139

End page: 142

Number of pages: 4

ISBN: 9783035710045

ISSN: 1013-9826

eISSN: 1662-9795

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85001033097&doi=10.4028%2fwww.scientific.net%2fKEM.718.139&partnerID=40&md5=64253d785192a6e75b049a8ec5332550

Languages: English-Great Britain (EN-GB)

View on publisher site

Abstract

Effect of erbium (Er) on the eutectic Si morphologies in hypoeutectic Al-Si based alloys was investigated using thermal analysis and microstructure examination. The microstructural observations show that the addition of Er causes significant modification of the eutectic silicon morphology from a coarse plate-like to a fine fibrous one. Furthermore, the results of thermal analysis reveal that the addition of Er decreased the temperatures of eutectic nucleation and growth, and increased the eutectic undercooling. The eutectic undercooling caused by the presence of Er plays an important role in the modification of eutectic silicon. ฉ 2017 Trans Tech Publications.

Keywords

Thermal analysis