THE EFFECT OF PURITY ON HIGH-TEMPERATURE OXIDATION OF ZIRCONIUM

Authors
VOITOVICH VB LAVRENKO VA VOITOVICH RF GOLOVKO EI
Citation
Vb. Voitovich et al., THE EFFECT OF PURITY ON HIGH-TEMPERATURE OXIDATION OF ZIRCONIUM, Oxidation of metals, 42(3-4), 1994, pp. 223-237
Citations number
34
Categorie Soggetti
Metallurgy & Mining
Journal title
Oxidation of metals → ACNP
ISSN journal
0030770X
Volume
42
Issue
3-4
Year of publication
1994
Pages
223 - 237
Database
ISI
SICI code
0030-770X(1994)42:3-4<223:TEOPOH>2.0.ZU;2-B
Abstract
The oxidation kinetics of zirconium of different purities were studied over the temperature range of 600-1300 degrees C (alpha- and beta-pha ses). The structure of the oxidized specimens was examined. TGA, XRD, EPMA, SEM, metallographic analysis, and microhardness measurements wer e carried out. Impurity elements were found to increase the oxidation rate of technical zirconium. The mechanism of the effect of impurity e lements on zirconium oxidation was shown to differ for the alpha- and beta-phases. Activation energies were calculated for the parabolic and lineal stages of oxidation.