Kinetics of Thermal Oxidation of TA2

Jing Hu; Yuan Fang; Yan Wang

doi:10.4028/www.scientific.net/AMR.532-533.12

Paper Titles

Preface and Organizing Committee

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Investigation on Preparation and Electrical Properties of Novel Perovskite Cathode Materials Doped with Multi-Elements for IT-SOFC
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 532-533Kinetics of Thermal Oxidation of TA2

Kinetics of Thermal Oxidation of TA2

Abstract:

Thermal oxidation treatment is a convenient and environmental friendly technique that can be used to harden the surface of titanium alloys, and hence improve the poor properties of the materials. The aim of the paper is to study the oxidizing kinetics of the process at different temperatures. With this purpose, pure titanium TA2 was subjected to thermal oxidation (TO) treatment in a conventional muffle furnace at 500°C~1050°C for 20mins~930mins under air atmosphere and cooled in the air. The surface morphology of the oxide layer at various temperatures was observed by scanning electron microscopy (SEM). The weight gain after oxidation treatment under different testing condition was measured and calculated. It is concluded that the oxidizing kinetics at 600°C～750°C followed parabolic law, and the parabola rate constant of Kp was investigated. The oxide layer formed at temperatures lower than 800°C is dense and protectable, while it is getting very loose at temperatures higher than 800°C.

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Periodical:

Advanced Materials Research (Volumes 532-533)

Pages:

12-15

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.532-533.12

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Online since:

June 2012

Authors:

Jing Hu, Yuan Fang, Yan Wang

Keywords:

Kinetic, TA2, Thermogravimetric Analysis (TGA)

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References

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