Phase analysis of Creep-Resistant Fe-C-Cr-Mo-V(W) Steels after Long-Term Service Exposure

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Authors

FORET Rudolf SOPOUŠEK Jiří KRUMPOS Josef SVOBODA Milan SOPOUŠEK Jiří VŘEŠŤÁL Jan SVOBODA Milan VŘEŠŤÁL Jan

Year of publication 2001
Type Article in Periodical
Magazine / Source Zeitschrift fur Metallkunde
MU Faculty or unit

Faculty of Science

Citation
Field Physical chemistry and theoretical chemistry
Keywords Creep-resistant steels; Phase analysis; Long-term service exposure
Description "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 C) were analysed using analytical electron microscopy. The carbides M7C3, M2C, MC, V4C3 and M23C6 were found in the body-centered cubic matrix. It was ascertained that, even after a very long service time, the samples were not entirely in a state of equilibrium. The difference between experimental and calculated results is briefly discussed.
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