Method for aluminizing a ferritic workpiece by coating it with a

Details Method for aluminizing a ferritic workpiece by coating it with a Method for aluminizing a ferritic workpiece by coating it with a

1992-04-24

1993-05-04

Lusigan, Michael

Coating processes

Coating by vapor, gas, or smoke

Metal coating

4773741, 4773765, 4773768, 477343, C23C 1600

Patent

active

052080714

ABSTRACT:
An improved method for aluminizing a ferritic material by forming an aqueous aluminum slurry composition, applying the aqueous aluminum slurry composition to the ferritic material to form a coating, adding a halide activator to the coated ferritic material and heating the coated ferritic material to a temperature of about 1275.degree. F. to about 1300.degree. F. for approximately 24 hours. The use of the lower temperature thermal cycle minimizes the change in the mechanical properties of a steel substrate.

REFERENCES:
patent: 3775151 (1973-11-01), Baker et al.
patent: 4004047 (1977-01-01), Grisik
patent: 4009146 (1977-02-01), Cork et al.
patent: 4041196 (1977-08-01), Baldi et al.
patent: 4084025 (1978-04-01), Rairden
patent: 4208453 (1980-06-01), Baldi
patent: 4290391 (1981-09-01), Baldi
patent: 4687684 (1987-08-01), Restall et al.

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