Hypereutectic aluminum-silicon alloy having refined primary silicon and a modified eutectic

Patent · Tue Aug 10 04:00:00 EDT 1993

OSTI ID:6240894

Donahue, R J; Hesterberg, W G; Cleary, T M

A hypereutectic aluminum-silicon casting alloy is described consisting essentially of 19% to 30% by weight of silicon, 0.03% to 1.6% by weight of magnesium, less than 0.37% by weight of copper, less than 0.03% by weight of manganese, less than 0.04% by weight of iron, 0.005% to 0.06% by weight of phosphorous, 0. 15% to 1. 1 5% by weight of titanium, and the balance aluminum, said alloy having a liquidus temperature above the peritectic temperature for the formation of titanium-aluminum particles, said alloy having a metallographic structure consisting of refined primary silicon particles and a modified silicon phase in the eutectic.

• Assignee: Brunswick Corp., Skokie, IL (United States)
• Patent Number(s): A; US 5234514
• Application Number: PPN: US 7-702895
• OSTI ID: 6240894
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
ALUMINIUM ALLOYS
CASTING
CHEMICAL COMPOSITION
COPPER ADDITIONS
COPPER ALLOYS
EUTECTICS
FABRICATION
MAGNESIUM ALLOYS
MANGANESE ADDITIONS
MANGANESE ALLOYS
MICROSTRUCTURE
PHOSPHORUS ADDITIONS
SILICON ALLOYS
TITANIUM ADDITIONS
TITANIUM ALLOYS