Semi-solid forming of hypereutectic Al-Si alloys
- Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Materials Science and Engineering
Hypereutectic aluminum-silicon alloys, containing up to about 18 wt.%Si, are commercially cast, but present difficulties due to their high liquidus temperature and wide freezing range. This paper describes research on fundamentals of semi-solid forming of hypereutectic silicon alloys containing up to 50 wt.%Si. Viscosities of semi-solid alloys containing 30--50 wt.%Si were measured in a Searle type viscometer. Structure and viscosity were related to processing conditions. Behavior of the alloys with respect to structure and formability is similar to that of hypoeutectic alloys. This research demonstrates the feasibility of part forming of alloys containing up to 50 wt.% silicon, at temperatures as low as the Al-Si eutectic, 577 C.
- OSTI ID:
- 372035
- Report Number(s):
- CONF-960202-; ISBN 0-87339-312-0; TRN: IM9641%%112
- Resource Relation:
- Conference: Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Anaheim, CA (United States), 4-8 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Light metals 1996; Hale, W. [ed.] [Anglesey Aluminum Metal Ltd., North Wales (United Kingdom)]; PB: 1304 p.
- Country of Publication:
- United States
- Language:
- English
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