Oxidation behavior of a burn resistant highly stabilized beta titanium alloy

Authors
Zhao, YQ Qu, HL Zhu, KY Wu, H Zhou, L
Citation
Yq. Zhao et al., Oxidation behavior of a burn resistant highly stabilized beta titanium alloy, MAT SCI E A, 316(1-2), 2001, pp. 211-216
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
316
Issue
1-2
Year of publication
2001
Pages
211 - 216
Database
ISI
SICI code
0921-5093(20011015)316:1-2<211:OBOABR>2.0.ZU;2-B
Abstract
Ti40 alloy (Ti-25V-15Cr-0.2Si) is a highly stabilized beta type burn resist ant titanium alloy. Its oxidation behavior was studied. The weight gain inc reases greatly with the oxidation temperature, and then decreases when the oxidation temperature is over 1000 degreesC. The oxidized products at 600 d egreesC are TiO2 and V2O5. If the oxidation temperature is greater than 700 degreesC, TiO2 becomes the main product due to the vaporization of V2O5. T he oxide scale cracks and peels off, if the temperature is over 900 degrees C. SiO has been evidenced in the porous oxides if the temperature is over 8 00 degreesC, and it vanishes as a result of scale spallation at 1050 degree sC. A small amount of Cr2O3 has also been detected inside the scales and di stributes non-continuously. Reasons of the fast oxidation are analyzed, and an oxidation model is suggested. (C) 2001 Elsevier Science B.V. All rights reserved.