Phase analysis of creep-resistant Fe-C-Cr-Mo-V (W) steels after long-term service exposure

Authors
Foret, R Krumpos, J Sopousek, J Svoboda, M Vrest'al, J
Citation
R. Foret et al., Phase analysis of creep-resistant Fe-C-Cr-Mo-V (W) steels after long-term service exposure, Z METALLKUN, 92(3), 2001, pp. 307-310
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science",Metallurgy
Journal title
ZEITSCHRIFT FUR METALLKUNDE
ISSN journal
00443093 → ACNP
Volume
92
Issue
3
Year of publication
2001
Pages
307 - 310
Database
ISI
SICI code
0044-3093(200103)92:3<307:PAOCF(>2.0.ZU;2-C
Abstract
"Industrial" samples of three low-alloy CrMoVW steel types exposed to long- term use in power plants (30,900-141,500 h at temperatures of 500-510 degre esC) were analysed using analytical electron microscopy. The carbides M7C3, M2C, MC, V4C3 and M23C6 were found in the body-centered cubic matrix. It w as ascertained that, even after a very long service time, samples were not entirely in a state of equilibrium. The difference between experimental and calculated results is briefly discussed.