Microstructure and properties of TC4 titanium alloy micro-arc oxide composite coating based on laser surface texturing
Abstract Micro-arc oxidation technology is one of the important means to improve the tribological properties of titanium alloys, but the bonding performance between the micro-arc oxidation film and the substrate material limits the further application of the micro-arc oxidation film. This study inve...
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Nature Portfolio
2025-03-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-89056-3 |
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| author | Xin Ma Qiang Shi Yong Huang Yaqi Liu Xu Yue |
| author_facet | Xin Ma Qiang Shi Yong Huang Yaqi Liu Xu Yue |
| author_sort | Xin Ma |
| collection | DOAJ |
| description | Abstract Micro-arc oxidation technology is one of the important means to improve the tribological properties of titanium alloys, but the bonding performance between the micro-arc oxidation film and the substrate material limits the further application of the micro-arc oxidation film. This study investigates TC4 titanium alloy as a model system, the microstructure and properties of the composite coating were obtained by laser surface texturing composite micro-arc oxidation process. The microstructure, phase composition, and worn morphology of the Micro-arc oxidation coating were characterized using X-ray diffraction, field emission scanning electron microscopy, and optical microscopy, respectively. Mechanical properties, including hardness, friction coefficient, and adhesion strength, were assessed using microhardness tester, Bruker tribometer, and micro/nano scratch tester, respectively. Results revealed that the Micro-arc oxidation coatings predominantly consist of Rutile TiO₂ and Anatase TiO₂ phases. The coating thickness in the mixed electrolyte reached up to 23.82 μm, with a maximum hardness of 467.56 HV₀.₅. Additionally, the friction coefficient of the laser-textured Micro-arc oxidation coatings decreased to 0.3. Laser surface texturing significantly enhanced the adhesion strength between the coating and substrate while simultaneously improving the tribological performance. |
| format | Article |
| id | doaj-art-bc19f858d7b44a41b138c20e690975ca |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-bc19f858d7b44a41b138c20e690975ca2025-08-20T03:41:41ZengNature PortfolioScientific Reports2045-23222025-03-0115111110.1038/s41598-025-89056-3Microstructure and properties of TC4 titanium alloy micro-arc oxide composite coating based on laser surface texturingXin Ma0Qiang Shi1Yong Huang2Yaqi Liu3Xu Yue4College of Mechanical and Electrical Engineering, Xinjiang Institute of EngineeringCollege of Mechanical and Electrical Engineering, Xinjiang Institute of EngineeringCollege of Mechanical and Electrical Engineering, Xinjiang Institute of EngineeringCollege of Control Engineering, Xinjiang Institute of EngineeringXinjiang Xiangrun New Materials Technology Co., LtdAbstract Micro-arc oxidation technology is one of the important means to improve the tribological properties of titanium alloys, but the bonding performance between the micro-arc oxidation film and the substrate material limits the further application of the micro-arc oxidation film. This study investigates TC4 titanium alloy as a model system, the microstructure and properties of the composite coating were obtained by laser surface texturing composite micro-arc oxidation process. The microstructure, phase composition, and worn morphology of the Micro-arc oxidation coating were characterized using X-ray diffraction, field emission scanning electron microscopy, and optical microscopy, respectively. Mechanical properties, including hardness, friction coefficient, and adhesion strength, were assessed using microhardness tester, Bruker tribometer, and micro/nano scratch tester, respectively. Results revealed that the Micro-arc oxidation coatings predominantly consist of Rutile TiO₂ and Anatase TiO₂ phases. The coating thickness in the mixed electrolyte reached up to 23.82 μm, with a maximum hardness of 467.56 HV₀.₅. Additionally, the friction coefficient of the laser-textured Micro-arc oxidation coatings decreased to 0.3. Laser surface texturing significantly enhanced the adhesion strength between the coating and substrate while simultaneously improving the tribological performance.https://doi.org/10.1038/s41598-025-89056-3Titanium alloysLaser surface texturingMicro-arc oxidationMicrostructureProperties |
| spellingShingle | Xin Ma Qiang Shi Yong Huang Yaqi Liu Xu Yue Microstructure and properties of TC4 titanium alloy micro-arc oxide composite coating based on laser surface texturing Scientific Reports Titanium alloys Laser surface texturing Micro-arc oxidation Microstructure Properties |
| title | Microstructure and properties of TC4 titanium alloy micro-arc oxide composite coating based on laser surface texturing |
| title_full | Microstructure and properties of TC4 titanium alloy micro-arc oxide composite coating based on laser surface texturing |
| title_fullStr | Microstructure and properties of TC4 titanium alloy micro-arc oxide composite coating based on laser surface texturing |
| title_full_unstemmed | Microstructure and properties of TC4 titanium alloy micro-arc oxide composite coating based on laser surface texturing |
| title_short | Microstructure and properties of TC4 titanium alloy micro-arc oxide composite coating based on laser surface texturing |
| title_sort | microstructure and properties of tc4 titanium alloy micro arc oxide composite coating based on laser surface texturing |
| topic | Titanium alloys Laser surface texturing Micro-arc oxidation Microstructure Properties |
| url | https://doi.org/10.1038/s41598-025-89056-3 |
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