Economic fabrication of composite zinc alloys

Details Economic fabrication of composite zinc alloys Economic fabrication of composite zinc alloys

1990-02-23

1991-07-23

Dean, R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Laterally noncoextensive components

C22C 1800, C22C 1802, C22C 1804

Patent

active

050342835

ABSTRACT:
Chilled iron shots with the carbon content being about 3 weight % are mixed with zinc-based alloys containing copper at a temperature between the liquidus and solidus of the matrix phase alloy such that the matrix alloy becomes a mixture of liquid and solid phase particles. Such slurry state mixture is agitated to form a vortex and the iron shots are injected to the vortex zone. The composite zinc alloy fabricated by the preceding slurry vortex method is very economical without degrading the physical/mechanical behavior compared to conventional zinc alloys. The copper or zinc coating on iron shots tends to improve the wetting adhesion between shots and matrix alloy, thus eliminating defects at the interphase between shots and matrix phase.

REFERENCES:
Blain et al., "A Study of the Dry Abrasion of Zn-Al Matrix; Iron, Aluminum, Al.sub.2 O.sub.3 Particles Composites", Processing of Ceramic and Metal Matrix Composites, Aug. 20-24, 1989, Chemical Abstract #112(12):103151k or Metals Abstract #90(3):62-204.

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