Influence of Oxidation Temperature on Structure and Mechanical Properties of Titanium

Abstract:

Surface oxidation of pure titanium was performed in the atmosphere to increase the mechanical properties. The effect of oxidation temperature (650-900°C) for 2 h on the microstructure, composition, and mechanical properties of the treated samples was investigated using X-ray diffraction, hardness tester and indentation modulus tester, respectively. The diffusion rate of oxygen in grade-2 pure Ti with different processing temperatures discussed in present research. Based on a result of the examination, the surface hardness was increased first and then decreased as the processing temperature increased. And when the processing temperature at 850°C, the surface hardness reached the maximum value. In addition, the Young's modulus of the treated samples also showed a maximum value of 198.9 GPa for a processing temperature of 850°C. An oxidation condition of 850°C is considered optimal as it provides sufficiently high hardness during practical use.

• Periodical: Solid State Phenomena (Volume 324)
• Pages: 15-20
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.324.15
• Online since: September 2021
• Authors: Tong Chen*, Shinji Koyama
• Keywords: Mechanical Properties, Microstructure, Oxidation Temperature, Titanium

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