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Metallurgical and Materials Transactions A
Erschienen in: Metallurgical and Materials Transactions A 13/2014

01.12.2014

Effects of Cooling Rate on Transformations in a Fe-9 Pct Ni Steel

verfasst von: Richard W. Fonda, George Spanos

Erschienen in: Metallurgical and Materials Transactions A | Ausgabe 13/2014

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Abstract

The transformations of a high-strength 9Ni-Cr-Mo-V steel were characterized as a function of cooling rate by dilatometry, microhardness measurements, and microstructural characterization. The results demonstrate that this steel is extremely insensitive to changes in cooling rate, generating a duplex microstructure of coarse autotempered martensite within a matrix of fine lath martensite at nearly all cooling rates. The coarse autotempered martensite is observed even at very slow cooling rates, although the lath martensite becomes replaced by lath (or bainitic) ferrite.
Vorheriger Artikel On the Roles of Oxidation and Vaporization in Surface Micro-structural Instability during Solution Heat Treatment of Ni-base Superalloys
Nächster Artikel Characterization of Transformation Stasis in Low-Carbon Steels Microalloyed with B and Mo

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Fußnoten
1
This microstructure is often sometimes referred to as ‘bainitic’ even though it is carbide free and thus does not develop through the concurrent precipitation of ferrite and carbide.
 
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Metadaten
Titel
Effects of Cooling Rate on Transformations in a Fe-9 Pct Ni Steel
verfasst von
Richard W. Fonda
George Spanos
Publikationsdatum
01.12.2014
Verlag
Springer US
Erschienen in
Metallurgical and Materials Transactions A / Ausgabe 13/2014
Print ISSN: 1073-5623
Elektronische ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-014-2588-3

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