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Mechanism of grain refinement of Mg-Al alloys by SiC inoculation

Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet

Authors

The mechanism of grain refinement was investigated for Mg-Al alloys inoculated with SiC particles. Contrary to the previously reported Al 4C3 hypothesis, the ternary carbide Al2MgC 2 was observed, which has a crystal structure closer to that of Mg than to that of Al4C3. In the centre of the grains, one or more "hillocks" enriched in Al and C were observed. Based on the observed phenomena, a novel mechanism is suggested to explain the grain refinement of Mg-Al alloys with the addition of SiC particles.

OriginalspracheEnglisch
ZeitschriftScripta Materialia
Jahrgang64
Ausgabenummer8
Seiten (von - bis)793-796
Anzahl der Seiten4
ISSN1359-6462
DOIs
PublikationsstatusErschienen - 04.2011
Extern publiziertJa

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