Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface
Both micro-ripples and nano-ripples were firstly reported at AZ31B magnesium alloy surface irradiated by femtosecond laser in atmospheric environment. Iridescent effect was also demonstrated over a large area of the irradiated surface induced by scanning laser beam. Results revealed that the colour...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2016
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| Online Access: | https://hdl.handle.net/10356/85038 http://hdl.handle.net/10220/39761 |
| _version_ | 1811678760008679424 |
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| author | Guan, Ying Chun Zhou, Wei Li, Zhong Li Zheng, Hong Yu |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Guan, Ying Chun Zhou, Wei Li, Zhong Li Zheng, Hong Yu |
| author_sort | Guan, Ying Chun |
| collection | NTU |
| description | Both micro-ripples and nano-ripples were firstly reported at AZ31B magnesium alloy surface irradiated by femtosecond laser in atmospheric environment. Iridescent effect was also demonstrated over a large area of the irradiated surface induced by scanning laser beam. Results revealed that the colour effect was mainly attributed to the nano-ripples with broad distribution of periods acting as diffraction gratings, and intensity of the structural colour was greatly influenced by morphology evolution of the micro-ripples with laser processing. It was suggested that near-field interference between surface plasmons polaritons and incident laser light determined the formation of the nano-ripples, and initial surface roughness combing with such interference lead to the formation of the micro-ripples. Potential applications of such effect on Mg alloys and how to apply the technique to other materials with different properties was further proposed. |
| first_indexed | 2024-10-01T02:58:22Z |
| format | Journal Article |
| id | ntu-10356/85038 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:58:22Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/850382020-09-26T22:10:08Z Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface Guan, Ying Chun Zhou, Wei Li, Zhong Li Zheng, Hong Yu School of Mechanical and Aerospace Engineering A*STAR SIMTech Structural color Periodic surface structures Magnesium alloy Femtosecond laser Diffraction and gratings Both micro-ripples and nano-ripples were firstly reported at AZ31B magnesium alloy surface irradiated by femtosecond laser in atmospheric environment. Iridescent effect was also demonstrated over a large area of the irradiated surface induced by scanning laser beam. Results revealed that the colour effect was mainly attributed to the nano-ripples with broad distribution of periods acting as diffraction gratings, and intensity of the structural colour was greatly influenced by morphology evolution of the micro-ripples with laser processing. It was suggested that near-field interference between surface plasmons polaritons and incident laser light determined the formation of the nano-ripples, and initial surface roughness combing with such interference lead to the formation of the micro-ripples. Potential applications of such effect on Mg alloys and how to apply the technique to other materials with different properties was further proposed. ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2016-01-22T08:22:06Z 2019-12-06T15:56:01Z 2016-01-22T08:22:06Z 2019-12-06T15:56:01Z 2013 Journal Article Guan, Y. C., Zhou, W., Li, Z. L., & Zheng, H. Y. (2013). Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface. Journal of Physics D: Applied Physics, 46, 425305-. 0022-3727 https://hdl.handle.net/10356/85038 http://hdl.handle.net/10220/39761 10.1088/0022-3727/46/42/425305 en Journal of Physics D: Applied Physics © 2013 IOP Publishing Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Physics D: Applied Physics, IOP Publishing Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1088/0022-3727/46/42/425305]. 11 p. application/pdf |
| spellingShingle | Structural color Periodic surface structures Magnesium alloy Femtosecond laser Diffraction and gratings Guan, Ying Chun Zhou, Wei Li, Zhong Li Zheng, Hong Yu Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface |
| title | Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface |
| title_full | Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface |
| title_fullStr | Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface |
| title_full_unstemmed | Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface |
| title_short | Femtosecond laser-induced iridescent effect on AZ31B magnesium alloy surface |
| title_sort | femtosecond laser induced iridescent effect on az31b magnesium alloy surface |
| topic | Structural color Periodic surface structures Magnesium alloy Femtosecond laser Diffraction and gratings |
| url | https://hdl.handle.net/10356/85038 http://hdl.handle.net/10220/39761 |
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