Process of producing Mg.sub.2 Si-containing alloys

US5141703A · kind A · utility

Assignee

• Metallgesellschaft AG · DE

Inventors

• Eberhard Schmid · Dormitz, DE
• Kersten V. Oldenburg · Felbern, DE
• Georg Frommeyer · Erkrath, DE

Key dates

• Filing date: May 7, 1991
• Grant date: Aug 25, 1992
• Expiry date: May 7, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C23/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a fusion-metallurgical process of producing fine-grained hereogeneous, ductile alloys which contain Mg.sub.2 Si, the grain size of the Mg.sub.2 Si crystallites formed by primary solidification is kept below 30 .mu.m by doping the molten alloy with 0.05 to 2% by weight of phosphorus.