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Indexed by:期刊论文

Date of Publication:2007-08-01

Journal:CHINA FOUNDRY

Included Journals:SCIE

Volume:4

Issue:3

Page Number:186-189

ISSN No.:1672-6421

Key Words:semi-solid slurry; AZ91 magnesium; electromagnetic stirring; microstructure; near-liquidus

Abstract:An electromagnetic stirring process near liquidus temperature was designed and demonstrated experimentally to produce semi-solid slurry of AZ91 magnesium alloy, in order to avoid not only contamination from mechanical stirring but also the inflammation of Mg alloy melt at elevated temperature. AZ91 alloy feedstock was isothermally heat treated at 600-610 degrees C for 20 min, and then stirred by electromagnetic field. Globular primary particle characteristic was observed optically in the castings. Mechanical properties were also studied.