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<p>Grade V titanium alloy is coated with Cerium Oxide (CeO<sub>2</sub>) using radio frequency magnetron sputtering, with the deposition time varying&#xa0;about 0.5 and 1&#xa0;hour (h), respectively. AFM demonstrated the surface topology of both the coated and&#xa0;uncoated&#xa0;samples. To identify the chemical composition and phase structure&#xa0;of the materials, FTIR and XRD studies were used. Electrochemical corrosion studies were carried out on the samples, and then Tafel, Impedance, and Nyquist curves were plotted. A ball-on disk wear test was performed on the samples. Cyclic high-temperature oxidation studies were conducted to identify the resistance to oxidation of the CeO<sub>2</sub>&#xa0;coatings. Titanium alloy coated with CeO<sub>2</sub> for 1&#xa0;h possesses improved corrosion, wear, and oxidation resistance, followed by the CeO<sub>2</sub> coating for 0.5&#xa0;h, when compared with the uncoated titanium alloy. Improvements in the mechanical, tribological and oxidation properties of CeO<sub>2</sub> coated titanium alloy enable its usage in aircraft applications.</p> Graphical Abstract <p></p>

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Experimental Investigation of CeO2 Coatings with Variation in Deposition Time on Grade V Titanium Alloy by Radio Frequency Sputtering

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • C. Bala Manikandan,
  • N. Selvakumar

摘要

Grade V titanium alloy is coated with Cerium Oxide (CeO2) using radio frequency magnetron sputtering, with the deposition time varying about 0.5 and 1 hour (h), respectively. AFM demonstrated the surface topology of both the coated and uncoated samples. To identify the chemical composition and phase structure of the materials, FTIR and XRD studies were used. Electrochemical corrosion studies were carried out on the samples, and then Tafel, Impedance, and Nyquist curves were plotted. A ball-on disk wear test was performed on the samples. Cyclic high-temperature oxidation studies were conducted to identify the resistance to oxidation of the CeO2 coatings. Titanium alloy coated with CeO2 for 1 h possesses improved corrosion, wear, and oxidation resistance, followed by the CeO2 coating for 0.5 h, when compared with the uncoated titanium alloy. Improvements in the mechanical, tribological and oxidation properties of CeO2 coated titanium alloy enable its usage in aircraft applications.

Graphical Abstract