The effect of time-temperature exposures on chemical composition of carbide M23C6 in 12CrMoV steel

Authors
Zahumensky, P Homolova, V Svoboda, M Janovec, J
Citation
P. Zahumensky et al., The effect of time-temperature exposures on chemical composition of carbide M23C6 in 12CrMoV steel, KOVOVE MAT, 38(4), 2000, pp. 269-279
Citations number
17
Categorie Soggetti
Material Science & Engineering
Journal title
KOVOVE MATERIALY-METALLIC MATERIALS
ISSN journal
0023432X → ACNP
Volume
38
Issue
4
Year of publication
2000
Pages
269 - 279
Database
ISI
SICI code
0023-432X(2000)38:4<269:TEOTEO>2.0.ZU;2-D
Abstract
In this paper the effect of temperature and time on M23C6 carbide chemical composition changes is investigated in the temperature range 550-650 degree s C from 100 to 5000 hours. The chemical composition of M23C6 carbides in t he steel has been evaluated by means of energy dispersive X-ray analysis (E DX). Experimentally measured results are compared with those obtained by ca lculations using Hillert-Staffansson model. In the examined time-temperatur e range the M23C6 carbide was found to achieve the equilibrium composition at the temperature of 650 degrees C after 5000 hours.