Coated roll for aluminizing processes

Details Coated roll for aluminizing processes Coated roll for aluminizing processes

1997-02-12

1998-06-02

Cuda, Irene

Roll or roller

Concentric layered annulus

Specific composition

492 53, C23C 410

Patent

active

057591423

ABSTRACT:
Aluminizing process guide roll are made longer wearing without surface defects by applying a multilayer coating on the roll surface including a first coating layer of MCrAlY metal of a first, lower porosity effective against corrosion, and a second coating layer of refractory oxide of a second higher porosity effective against surface defect failure generated thermal expansion failure of the layer.

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