Method for preparing surfaces of metal composites having a britt

Details Method for preparing surfaces of metal composites having a britt Method for preparing surfaces of metal composites having a britt

1982-05-19

1984-03-20

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

156651, 156656, 156666, 204 29, 204 32R, 20412975, C23F 102, C25F 308, C25D 538

Patent

active

044379560

ABSTRACT:
The present invention is directed to a method for preparing surfaces of two-phase metal composites having relatively brittle and malleable components for plating with corrosion-resistant material. In practice of the present invention, the surfaces of the composites are etched to remove a major portion or fraction of the brittle component. The etched surface is then peened with particulates for breaking the brittle component from the surfaces and for spreading or smearing the malleable component over the surfaces. The peened surface is then chemically cleaned of residual traces of the brittle component so as to provide a surface of essentially the malleable component to which the corrosion-resistant material may be plated thereon in an adherent manner.

REFERENCES:
patent: 2412058 (1946-12-01), Pfeil
patent: 2504906 (1950-04-01), Tremblay
patent: 2884364 (1959-04-01), Rebol et al.
patent: 3287238 (1966-11-01), Latawiec et al.

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