Title:
【発明の名称】改良された超共融アルミニウムケイ素合金
Document Type and Number:
Japanese Patent JPH04506092
Kind Code:
A
Abstract:
A hypereutectic aluminum silicon alloy having an improved distribution of primary silicon in the microstructure. The alloy is composed by weight of 20% to 30% silicon, 0.4% to 1.6% magnesium, up to 1.4% iron, up to 0.3% manganese, 0.25% copper maximum and the balance aluminum. With this composition the aluminum silicon alloy system exhibits near zero shrinkage on solidification, a similarity of the liquid aluminum-silicon alloy and the primary silicon during the early stages of primary silicon precipitation, and thereby minimizes floatation of the precipitated primary silicon and to provide a more uniform distribution of the primary silicon in the microstructure and increase the wear resistant characteristics of the alloy.
Inventors:
Donahue, Raymond, Jay.
Hesterburg, William, G.
Cleary, Terrance, M.
Hesterburg, William, G.
Cleary, Terrance, M.
Application Number:
JP50678390A
Publication Date:
October 22, 1992
Filing Date:
April 11, 1990
Export Citation:
Assignee:
Brunswick, Corporation
International Classes:
C22C21/02; (IPC1-7): C22C21/02
Attorney, Agent or Firm:
Kazuo Sato (2 outside)