Influence of austenisation temperature and hold time on grain size of type9Cr1MoVNb ferritic-martensitic steels used in supercritical boilers

Authors
Gutierrez-Urrutia, I Gutierrez, S San Juan, JM
Citation
I. Gutierrez-urrutia et al., Influence of austenisation temperature and hold time on grain size of type9Cr1MoVNb ferritic-martensitic steels used in supercritical boilers, REV METAL M, 37(2), 2001, pp. 98-102
Citations number
12
Categorie Soggetti
Metallurgy
Journal title
REVISTA DE METALURGIA
ISSN journal
00348570 → ACNP
Volume
37
Issue
2
Year of publication
2001
Pages
98 - 102
Database
ISI
SICI code
0034-8570(200103/04)37:2<98:IOATAH>2.0.ZU;2-1
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-ma rtensitic type 9Cr1MoVNb steels developed for Oak Ridge National Laboratori es & Combustion Engineering, T91/P91([1]) Steels (USA) and X10CrMoVNb 9.1 ( Europe). The potential benefits of this material, in term of high resistanc e, good ductily in 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 degreesC). The studie d steels have been produced in, high fecuency induction vacum furnaces and hot-rolled.