Electrolessly plated nickel/phosphorus/boron system coatings and

Details Electrolessly plated nickel/phosphorus/boron system coatings and Electrolessly plated nickel/phosphorus/boron system coatings and

1995-11-29

1999-04-27

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428680, 428936, B32B 1500, B32B 1520

Patent

active

058979654

ABSTRACT:
Disclosed are electrolessly plated nickel coatings containing 0.5 to 3.0% by weight of phosphorus and 0.05 to 2.0% by weight of boron, coatings obtained by subjecting to heat treatment electrolessly plated nickel coatings containing 0.5 to 3.0% by weight of phosphorus and 0.05 to 2.0% by weight of boron and machine parts having sliding surfaces wherein at least the sliding surfaces are coated with the coatings. The coatings can be suitably provided on base materials composed of aluminum alloys or the like, show high hardness, high impact strength (high toughness) and improved lubricating characteristics such as sliding characteristics and, in addition, can be formed at a high rate.

REFERENCES:
patent: Re29285 (1977-06-01), Christini et al.
patent: 5584428 (1996-12-01), Satoh et al.
A. Talaat el-Mallah et al., "Autocatalytic (Electroless) Deposition on Nickel-Phosphorus-Boron Alloys: Part III. Deposit Properties", Metal Finishing, Aug. 1993, pp. 23-28.
C.K. Mital et al., "Electroless Nickel-Phosphorus-Boron Alloy Coatings", Metal Finishing, Oct. 1986, pp. 67-70.

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