Aluminum master alloys containing strontium, boron, and silicon

Details Aluminum master alloys containing strontium, boron, and silicon Aluminum master alloys containing strontium, boron, and silicon

1991-03-04

1993-07-27

Dean, R.

Metal treatment

Stock

Aluminum base

420528, 420548, 420549, C22C 2100, C22C 2102, C22C 102

Patent

active

052307549

ABSTRACT:
Improved aluminum master alloys containing strontium and boron are provided for simultaneously modifying and grain refining Al alloys, and in particular, hypoeutectic Al-Si alloys. The improved master alloy contains, by weight percent, about 0.20-20% Sr, 0.10-10% B, and the balance Al with impurities. The master alloy may also contain about 0.20 to about 20% Si by weight percent. The master alloys have a high degree of ductility for purposes of forming continuously rolled master alloy rod stock.

REFERENCES:
patent: 3567429 (1971-03-01), Dunkel et al.
patent: 4009026 (1977-02-01), Rasmessen
patent: 4576791 (1986-03-01), Thistlethwaite
patent: 5045110 (1991-09-01), Vader et al.

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