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| Status | 已發表Published |
| Characterization of laser surface-alloyed Ti-Ni-Ag coatings and evaluation of their corrosion and antibacterial performance | |
Qiao, Q.1; Cristino, V. A.M.1 ; Tam, L. M.1,2; Chang, W. W.4,5; Qian, H. C.4,5; Zhang, D. W.4,5; Kwok, C. T.1,3
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| 2023-10-18 | |
| Source Publication | Surface and Coatings Technology
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| ISSN | 0257-8972 |
| Volume | 474Pages:130119 |
| Abstract | The novel antibacterial Ti-Ni-Ag coatings with various Ag contents (2.1 to 4.6 wt%) were successfully fabricated on TiNi substrate using laser surface alloying. Microstructure, hardness, corrosion and antibacterial properties of the laser surface-alloyed (LSAed) Ti-Ni-Ag coatings were investigated. In the alloyed layers, more TiNi, β-Ti, and Ag particles are formed with a higher Ag content. The hardness of coating with 4.6 wt% Ag is increased by 109 % as compared with the TiNi substrate mainly attributed to the high TiNi content. Compared with TiNi, the corrosion resistance of LSAed Ti-Ni-Ag coatings was enhanced as evidenced by a noble shift in the corrosion potential and a lower passive current density owing to the thicker and denser passive films, which was further confirmed by scanning electrochemical microscopy (SECM), X-ray photoelectron (XPS) and Mott-Schottky analyses. Also, it was found that the released Ag ions and Ag particles are responsible for enhancing the antibacterial efficacy of the LSAed Ti-Ni-Ag against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). |
| Keyword | Antibacterial Efficacy Corrosion Hardness Laser Surface Alloying Ti-ni-ag Coatings Tini Substrate |
| DOI | 10.1016/j.surfcoat.2023.130119 |
| URL | View the original |
| Indexed By | SCIE |
| Language | 英語English |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| WOS ID | WOS:001102148000001 |
| Publisher | ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND |
| Scopus ID | 2-s2.0-85174440230 |
| Fulltext Access | |
| Citation statistics | |
| Document Type | Journal article |
| Collection | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING DEPARTMENT OF ELECTROMECHANICAL ENGINEERING |
| Corresponding Author | Kwok, C. T. |
| Affiliation | 1.Department of Electromechanical Engineering, University of Macau, Macao 2.Institute for Development and Quality, Macao 3.Institute of Applied Physics and Materials Engineering, University of Macau, Macao 4.Beijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, China 5.National Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing, 100083, China |
| First Author Affilication | University of Macau |
| Corresponding Author Affilication | University of Macau; INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
| Recommended Citation GB/T 7714 | Qiao, Q.,Cristino, V. A.M.,Tam, L. M.,et al. Characterization of laser surface-alloyed Ti-Ni-Ag coatings and evaluation of their corrosion and antibacterial performance[J]. Surface and Coatings Technology, 2023, 474, 130119. |
| APA | Qiao, Q.., Cristino, V. A.M.., Tam, L. M.., Chang, W. W.., Qian, H. C.., Zhang, D. W.., & Kwok, C. T. (2023). Characterization of laser surface-alloyed Ti-Ni-Ag coatings and evaluation of their corrosion and antibacterial performance. Surface and Coatings Technology, 474, 130119. |
| MLA | Qiao, Q.,et al."Characterization of laser surface-alloyed Ti-Ni-Ag coatings and evaluation of their corrosion and antibacterial performance".Surface and Coatings Technology 474(2023):130119. |
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