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Improving corrosion resistance of 3D printed Ti-6Al-4V by TiN coating |
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| รหัสดีโอไอ | |
| Creator | Surada NISAIMUN |
| Title | Improving corrosion resistance of 3D printed Ti-6Al-4V by TiN coating |
| Contributor | Phitsanu POOLCHARUANSIN, Patama VISUTTIPITUKUL, Pitichon KLOMJIT |
| Publisher | Metallurgy and Materials Science Research Institute Chulalongkorn University |
| Publication Year | 2564 |
| Journal Title | Journal of Metals, Materials and Minerals |
| Journal Vol. | 31 |
| Journal No. | 2 |
| Page no. | 137-146 |
| Keyword | TiN, Ti-6Al-4V alloy, HiPIMS, DCMS, Electrochemical impedance spectroscopy (EIS) |
| ISSN | 8576149 |
| Abstract | TiN thin films were deposited on biomaterial 3D printed Ti-6Al-4V substrates using two methodsสincluding direct current magnetron sputtering (DCMS) and high-power impulse magnetron sputteringส(HiPIMS). The coating times were compared between 5 min and 25 min. HiPIMS was developedสbased on DCMS by increasing degree of ionization in plasma and power densities in the orderสofสkW_cm-2สcompared to W_cm-2สof DCMS. The film characteristics and mechanical properties wereสinvestigatedสby glancing incident x-ray diffractometer (GIXRD), field emission scanning electron microscope (FE-SEM), and atomic force microscope (AFM). Electrochemical behavior was analyzed by electrochemical impedance spectroscopy (EIS) in 1 M NaCl solution. The results showed that TiN films deposited by HiPIMS exhibited an equiaxed structure while those from DCMS had a columnar structure. As a consequence, corrosion resistance of HiPIMS films was better than the DCMS films. Furthermore, increasing coating time resulted in thicker TiN layer and therefore, promoted higher corrosion resistance. |
