Method for the manufacture of deformation resistant oxidic prote

Details Method for the manufacture of deformation resistant oxidic prote Method for the manufacture of deformation resistant oxidic prote

1982-11-08

1984-10-09

Lawrence, Evan K.

Metal treatment

Compositions

Heat treating

148 63, C23C 1108

Patent

active

044759584

ABSTRACT:
Method for the manufacturing of deformation-resistant oxide coatings on metallic workpieces, in which fissures are induced in the oxide layer formed on the surface of the workpiece as a result of severe deformations in the base material. The fissures are subsequently healed by filling the interstices with subsequently produced oxide resulting from a post-oxidation process. Repeating the process several times controls the natural stress condition of the surface layer such that the effective elastic deformation range is extended.

REFERENCES:
patent: 2187589 (1940-01-01), Lenel
patent: 2943031 (1960-06-01), Wainer
patent: 3345218 (1967-10-01), Brookover et al.
patent: 3634147 (1972-01-01), Helwig et al.

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