Influencia de la temperatura de austenización y tiempo de permanencia sobre el tamaño de grano en aceros ferrítico-martensíticos del tipo 9Cr1MoVNb utilizados en calderas supercríticas

L. Gutiérrez-Urrutia; S. Gutiérrez; J. M. San Juan

doi:10.3989/revmetalm.2001.v37.i2.445

Influence of austenisation temperature and hold time on grain size of type 9Cr1MoVNb ferritic-martensitic steels used in supercritical boilers

Authors

L. Gutiérrez-Urrutia Dpto. Física de la Materia Condensada. Metalurgia Física. Facultad de Ciencias. Univ.del País Vasco (UPV/EHU)
S. Gutiérrez Dpto. Laboratorios. Unidad l+D. Babcock & Wilcox Spain (BWE/SEPI); Dpto. Ciencia Materiales e Ing. Metalúrgica. Univ. del País Vasco (UPV/EHU)
J. M. San Juan Dpto. Física de la Materia Condensada. Metalurgia Física. Facultad de Ciencias Univ.del País Vasco (UPV/EHU)

DOI:

https://doi.org/10.3989/revmetalm.2001.v37.i2.445

Keywords:

9Cr1MoVNb (X10CrMoVNb9.1) Steels, Austenisation (T/t),

Abstract

The aim of the present work is to determine the influence of austenitizing temperature holding time and heating velocity on grain size of ferritic-martensitic type 9CrlMoVNb steels developed for Oak Ridge National Laboratories & Combustion Engineering, T91/P91^[1] Steels (USA) and X10CrMoVNb 9.1 (Europe). The potential benefits of this material, in term of high resistance, good ductily and oxidation resistance, weldability and in particular good high temperature creep strength, are now widely acknowledged, particulary by supercritical boilers (P = 300 bar, T = 550±50 °C). The studied steels have been produced in, high frecuency induction vacum furnaces and hot-rolled.

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Published

2001-04-30

How to Cite

Gutiérrez-Urrutia, L., Gutiérrez, S., & San Juan, J. M. (2001). Influence of austenisation temperature and hold time on grain size of type 9Cr1MoVNb ferritic-martensitic steels used in supercritical boilers. Revista De Metalurgia, 37(2), 98–102. https://doi.org/10.3989/revmetalm.2001.v37.i2.445

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Issue

Vol. 37 No. 2 (2001)

Section

Articles

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