6. Conclusion

The very origin of the inclusions shows that these chemical compounds are an integral part of the structure of steels, in the same way as carbides which, grouped in clusters, or even isolated but elongated as in extra-soft steels, clearly modify the characteristics of the metal; these carbides, moreover, are separated from non-metallic inclusions only by a conventional boundary.

These inclusions are part of the life of steel, from the moment they are born, passing through a period of transformations before reaching maturity for use as mechanical parts. Inclusions are permanent, and their number cannot decrease (except in the rare case of digestion of FeO particles by the steel's carbon), but can increase as a result of surface pollution. They can migrate; internal inclusions can end up on the surface as a result of working (effects of splitting grooves, stamping...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors

+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year

From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Studies and properties of metals

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

Subscribe now!

Ongoing reading
Conclusion

Previous
page Inclusion-property relations

Micrographic plates

References

(1) - CASTRO (R.) - Les inclusions non métalliques dans l'acier. - Cours du CESSID Metz 1969.
(2) - ALMAND (E.) - Influence de faibles additions de sélénium sur les caractéristiques transversales des aciers de construction. - Rev. Met....

Standardization

AFNOR standards

Produits sidérurgiques. Méthodes de détermination de la teneur en inclusions non métalliques des aciers corroyés. Partie I. Méthodes macroscopiques. - NF A 04-105 - 10-86
Produits sidérurgiques. Méthodes de détermination de la teneur en inclusions non métalliques des aciers corroyés. Partie II. Méthode micrographique à l'aide d'images types. - NF A 04-106 - 9-84
Produits sidérurgiques....

Theses

- http://www.sudoc.abes.fr
PIOT (D.) - Prévision de la distribution des durées de vie en fatigue de roulement à partir des caractéristiques mécaniques et inclusionnaires de l'acier. - 2000. INSA Lyon....