Some Properties of Ferritic-Type Aluminum Diffusion Coatings

The Al diffusion coating consists of several layers whose number, thickness and structure may be varied by choice of treatment parameters or different heat treatments after aluminizing. Some mechanical properties of the diffused "ferritic" Al layers formed on C and alloy steels by annealin...

Full description

Saved in:
Bibliographic Details
Published in:Wear 1975-01, Vol.31 (1), p.1-15
Main Author: Senatorski, Jan
Format: Article
Language:ger
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Al diffusion coating consists of several layers whose number, thickness and structure may be varied by choice of treatment parameters or different heat treatments after aluminizing. Some mechanical properties of the diffused "ferritic" Al layers formed on C and alloy steels by annealing have been examined. Instead of layers of Al and intermetallic compounds, a single layer of a solid solution of Al in Fe of a structure similar to pure ferrite is formed. Microanalysis confirms that a diffusion process leads to such formation and growth. Comparative studies of the steels- without Al coatings, with diffused coatings, and with ferritic coating showed that the latter improved wear, especially with low-C mild steels. Thus, aluminized C steels may be used in place of expensive alloy steels under conditions of cyclic temperature variation and sliding contact. 13 ref.--EPAA/AF.
ISSN:0043-1648