Casing and Linepipe steels for sour service applications

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Mots clés : Metallurgy;Sour service applications;Steel
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Texte
Sommaire: Characterization of second phase particles is important with regard to their influence on mechanical properties of materials. Analytical electron microscopy offers the possibility to achieve complete characterization of inclusions. Complete characterization of inclusions means quantitative evaluation of their chemistry and the streological parameters. A characterization technique based on integrated microscopy and involving scanning electron microscopy, image analysis and energy dispersive...
Publication: CIM Bulletin
Auteur(s): C.Blais, G. L'Esperance
Mots clés: Metallurgy, Steel, Inclusions in steel
Numéro: 1021
Volume: 91
Année: 1998
Texte
Sommaire: The functional role of inclusions at low cutting speeds is to promote ductile fracture in chip formation process, whereas the role of inclusions at high cutting speeds is to prevent tool crater wear by surpressing the tribological phenomenon of seizure at the tool-chip interface at high cutting speeds. The viscous layer lubricates the tool-chip interface to prevent the seizure. In comparison with the large volume fraction of inclusions needed for promoting ductile fracture at low cutting...
Publication: CIM Bulletin
Auteur(s): S.V. Subramanian, H.O. Gekonde, X.Zhang, J.Gao
Mots clés: Metallurgy, Steel, Inclusion engineering, High speed machining
Numéro: 1021
Volume: 91
Année: 1998
Texte
Sommaire: Over the past twenty years, steel makers have introduced improved practices for reducing the inclusion content of steels. The success of these practice changes can be monitored in a variety of ways. Chemical analysis of the bulk sulphur and oxygen contents provides a relatively simple means to assess the impact of these changes. However, microscopical test methods are still needed to assess the nature of the inclusions present. Traditional chart-based measuremnet methods have wide acceptabili...
Publication: CIM Bulletin
Auteur(s): G.F. Vander Voor
Mots clés: Metallurgy, Inclusion measurement, Steel
Numéro: 1021
Volume: 91
Année: 1998
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