Patent Number: 6,309,761

Title: Process of aluminizing steel to obtain and interfacial alloy layer and product therefrom

Abstract: A process in which a steel is dipped in an aluminum-based bath wherein the composition and mean temperature of the bath and the immersion temperature of the steel are adjusted to obtain, in the immersion zone of the steel, a local bath temperature and composition resulting in an equilibrium with the solid phase designated as .theta..ident.FeAl.sub.3. Dipping is performed at a temperature higher than the temperatures normally employed in the art and a coating is obtained having at the interface with the steel an alloy layer significantly smaller in thickness than the art. The coating obtained better resists cracking and corrosion.

Inventors: Guesdon; Philippe (Paris, FR), Godin; Jean-Pierre (Mogneville, FR), Lesueur; Eric (Saint Just en Chaussee, FR)

Assignee: Sollac

International Classification: C23C 2/04 (20060101); C23C 2/12 (20060101); B32B 015/01 (); B05D 001/18 ()

Expiration Date: 10/30/2018