4. Gaseous treatment
4.1 Gas cementation and carbonitriding (at atmospheric pressure)
The treatment is carried out in a sealed furnace in which a controlled atmosphere is maintained at slight overpressure, consisting of a carrier gas to which is added, if necessary, a carbon enrichment gas and, in addition, nitrogen in the case of carbonitriding, to achieve the desired carbon potential.
The main case-hardening reactions are :
The Ultimate Scientific and Technical Reference
This article is included in
Metal treatments
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Gaseous treatment
Heat treatment after carburizing or carbonitriding
Bibliography
Article M 1 225
Standards and norms
French Standards Association (AFNOR)
Steel standards
- Aciers à dispersoïdes destinés au forgeage à chaud. Demi-produits et barres. - A 33-111 - 10.87
- Aciers de construction non alliés et alliés spéciaux pour cémentation. Nuances. Demi-produits, barres et fils machine. - NF A 35-551 - 7.86
- Aciers pour tempe et revenu. Partie 1 : conditions techniques de livraison des aciers spéciaux (indice...
Directories
Manufacturers – Suppliers – Distributors (non-exhaustive list)
-
Industrial Gases
LIQUID AIR
AIR PRODUCTS. PRODAIR
...
The Ultimate Scientific and Technical Reference
