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Título

High temperature workability behaviour of a modified P92 steel

AutorCarsí, Manuel; Peñalba, F.; Rieiro, Ignacio; Ruano, Oscar Antonio
Palabras claveP92 steel
Forming
Garofalo equation
Efficiency maps
Stability maps
Fecha de publicación2011
EditorCarl Hanser Verlag
CitaciónInternational Journal of Materials Research 11 : 1378-83 (2011)
ResumenThe high temperature forming behaviour of a modified P92, type 9% Cr, steel is studied by means of torsion tests. The data obtained from these tests allowed correlation of the number of turns to failure, a measure of ductility, as a function of strain rate and temperature. In addition, the data were correlated by the Garofalo equation with a stress exponent of 4.78 and an activation energy of 390 kJ mol–1. This equation was used to predict the formability behaviour for the rolling process and also to determine the maximum forming efficiency and stability of the steel. A temperature of 1 140 °C is found to give the optimum forming temperature.
Versión del editorhttp://dx.doi.org/10.3139/146.110603
URIhttp://hdl.handle.net/10261/43597
DOI10.3139/146.110603
ISSN1862-5282
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