Mitigation of bio-corrosion characteristics of coronary artery stent by optimising fs-laser micromachining parameters
Cardiovascular diseases, particularly coronary artery disease, pose big challenges to human life. Deployment of the stent is a preferable treatment for the above-mentioned disease. However, stents are usually made up of shape memory alloy called Nitinol. The poorer surface finish on the machined nit...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402404088X |
| _version_ | 1827293930998202368 |
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| author | Venkatesh Chenrayan Dhanabal Palanisamy Kalayarasan Mani Kiran Shahapurkar Manzoore Elahi M. Soudagar Yasser Fouad M.A. Kalam Muhammad Mahmood Ali Muhammad Nasir Bashir |
| author_facet | Venkatesh Chenrayan Dhanabal Palanisamy Kalayarasan Mani Kiran Shahapurkar Manzoore Elahi M. Soudagar Yasser Fouad M.A. Kalam Muhammad Mahmood Ali Muhammad Nasir Bashir |
| author_sort | Venkatesh Chenrayan |
| collection | DOAJ |
| description | Cardiovascular diseases, particularly coronary artery disease, pose big challenges to human life. Deployment of the stent is a preferable treatment for the above-mentioned disease. However, stents are usually made up of shape memory alloy called Nitinol. The poorer surface finish on the machined nitinol stents accelerates the migration of Nickel ions from the implanted nitinol stent, which is considered toxic and can lead to stenosis. The current study deals with controlling surface quality by minimising surface roughness and improving corrosion resistance. Femtosecond laser (fs-laser 10−15 s) micromachining was employed to machine the Nitinol surface to achieve sub-micron surface roughness. The Grey relational analysis (GRA)-coupled design of the experimental technique was implemented to determine optimal levels of four micromachining parameters (laser power, pulse frequency, scanning speed, and scanning pattern) varied at three levels to achieve minimum surface roughness and to maximise the volume ablation. The results show that to yield minimum surface roughness and maximum volume ablation, laser power and scanning speed are in a higher range. In contrast, the pulse frequency is lower, and the scanning pattern is in a zig-zag manner. ANOVA results manifest that scanning speed is the predominant factor in minimising surface roughness, followed by pulse frequency. Furthermore, the corrosion behaviour of the machined nitinol specimens was evaluated, and the results show that specimens with lower surface roughness had lower corrosion rates. |
| first_indexed | 2024-04-24T13:48:18Z |
| format | Article |
| id | doaj.art-7de9f64c1fa74ab58f70db8239523d6a |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-24T13:48:18Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-7de9f64c1fa74ab58f70db8239523d6a2024-04-04T05:06:43ZengElsevierHeliyon2405-84402024-03-01106e28057Mitigation of bio-corrosion characteristics of coronary artery stent by optimising fs-laser micromachining parametersVenkatesh Chenrayan0Dhanabal Palanisamy1Kalayarasan Mani2Kiran Shahapurkar3Manzoore Elahi M. Soudagar4Yasser Fouad5M.A. Kalam6Muhammad Mahmood Ali7Muhammad Nasir Bashir8Polymer Composite Processing and Research Laboratory, Department of Mechanical Engineering, Alliance University, Anekal, Bengaluru, India; Department of Mechanical Engineering, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of KoreaDepartment of Mechanical Engineering, PSG College of Technology, Coimbatore, IndiaDepartment of Mechanical Engineering, PSG College of Technology, Coimbatore, IndiaSchool of Mechanical, Chemical and Material Engineering, Adama Science and Technology University, Adama, Ethiopia; Institute of Power Engineering, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia; Division of Research and Development, Lovely Professional University, Phagwara, Punjab, 144411, India; Corresponding author. School of Mechanical, Chemical and Material Engineering, Adama Science and Technology University, Adama, Ethiopia.Faculty of Mechanical Engineering, Opole University of Technology, 45-758, Opole, Poland; Department of Mechanical Engineering, Graphic Era (Deemed to be University), Dehradun, Uttarakhand 248002, IndiaDepartment of Applied Mechanical Engineering, College of Applied Engineering, Muzahimiyah Branch, King Saud University, P.O. Box 800, Riyadh 11421, Saudi ArabiaSchool of Civil and Environmental Engineering, FEIT, University of Technology Sydney, NSW 2007, AustraliaCentre for Mathematical Modelling and Intelligent Systems for Health and Environment (MISHE), Atlantic Technological University Sligo, Ash Lane, Sligo F91 YW50, Ireland; Department of Mechatronic Engineering, Faculty of Engineering and Design, Atlantic Technological University, Sligo F91 YW50, Ireland; Corresponding author. Centre for Mathematical Modelling and Intelligent Systems for Health and Environment (MISHE), Atlantic Technological University Sligo, Ash Lane, Sligo F91 YW50, Ireland.Department of Mechanical Engineering, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea; Department of Mechanical Engineering, CEME, National University of Sciences and Technology NUST, Islamabad, Pakistan; Corresponding author. Department of Mechanical Engineering, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of KoreaCardiovascular diseases, particularly coronary artery disease, pose big challenges to human life. Deployment of the stent is a preferable treatment for the above-mentioned disease. However, stents are usually made up of shape memory alloy called Nitinol. The poorer surface finish on the machined nitinol stents accelerates the migration of Nickel ions from the implanted nitinol stent, which is considered toxic and can lead to stenosis. The current study deals with controlling surface quality by minimising surface roughness and improving corrosion resistance. Femtosecond laser (fs-laser 10−15 s) micromachining was employed to machine the Nitinol surface to achieve sub-micron surface roughness. The Grey relational analysis (GRA)-coupled design of the experimental technique was implemented to determine optimal levels of four micromachining parameters (laser power, pulse frequency, scanning speed, and scanning pattern) varied at three levels to achieve minimum surface roughness and to maximise the volume ablation. The results show that to yield minimum surface roughness and maximum volume ablation, laser power and scanning speed are in a higher range. In contrast, the pulse frequency is lower, and the scanning pattern is in a zig-zag manner. ANOVA results manifest that scanning speed is the predominant factor in minimising surface roughness, followed by pulse frequency. Furthermore, the corrosion behaviour of the machined nitinol specimens was evaluated, and the results show that specimens with lower surface roughness had lower corrosion rates.http://www.sciencedirect.com/science/article/pii/S240584402404088XNitinolFs-laserSurface roughnessVolume ablationCorrosionGRA |
| spellingShingle | Venkatesh Chenrayan Dhanabal Palanisamy Kalayarasan Mani Kiran Shahapurkar Manzoore Elahi M. Soudagar Yasser Fouad M.A. Kalam Muhammad Mahmood Ali Muhammad Nasir Bashir Mitigation of bio-corrosion characteristics of coronary artery stent by optimising fs-laser micromachining parameters Heliyon Nitinol Fs-laser Surface roughness Volume ablation Corrosion GRA |
| title | Mitigation of bio-corrosion characteristics of coronary artery stent by optimising fs-laser micromachining parameters |
| title_full | Mitigation of bio-corrosion characteristics of coronary artery stent by optimising fs-laser micromachining parameters |
| title_fullStr | Mitigation of bio-corrosion characteristics of coronary artery stent by optimising fs-laser micromachining parameters |
| title_full_unstemmed | Mitigation of bio-corrosion characteristics of coronary artery stent by optimising fs-laser micromachining parameters |
| title_short | Mitigation of bio-corrosion characteristics of coronary artery stent by optimising fs-laser micromachining parameters |
| title_sort | mitigation of bio corrosion characteristics of coronary artery stent by optimising fs laser micromachining parameters |
| topic | Nitinol Fs-laser Surface roughness Volume ablation Corrosion GRA |
| url | http://www.sciencedirect.com/science/article/pii/S240584402404088X |
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