Boiling effect in crater development on magnesium surface induced by laser melting
This paper demonstrated that micron-craters could be fabricated on both magnesium and Mg alloy surfaces by nanosecond pulsed laser processing. Experimental results revealed that the craters with broad distribution of dimension occurred after laser melting. Morphological difference at the irradiated...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2016
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/85036 http://hdl.handle.net/10220/39592 |
| _version_ | 1826110651481718784 |
|---|---|
| author | Guan, Yingchun Zhou, Wei Li, Zhongli Zheng, Hongyu |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Guan, Yingchun Zhou, Wei Li, Zhongli Zheng, Hongyu |
| author_sort | Guan, Yingchun |
| collection | NTU |
| description | This paper demonstrated that micron-craters could be fabricated on both magnesium and Mg alloy surfaces by nanosecond pulsed laser processing. Experimental results revealed that the craters with broad distribution of dimension occurred after laser melting. Morphological difference at the irradiated surface between Mg and Mg alloy indicated that thermal properties, alloying elements and microstructure of irradiated materials were key factors responsible for crater formation. It was proposed that the craters were formed by combined effect of explosive volume boiling and generation of cavitation bubbles during laser melting. Thermal effect of nanosecond pulsed laser processing on Mg and Mg alloy as well as progressive formation of laser-induced crater was further discussed. Such phenomenon extended potential applications of Mg materials, which offered the potential for developing new types of Mg-based biomedical devices. |
| first_indexed | 2024-10-01T02:37:59Z |
| format | Journal Article |
| id | ntu-10356/85036 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:37:59Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/850362020-09-26T22:09:58Z Boiling effect in crater development on magnesium surface induced by laser melting Guan, Yingchun Zhou, Wei Li, Zhongli Zheng, Hongyu School of Mechanical and Aerospace Engineering A*STAR SIMTech Mg and Mg alloy Crater Nanosecond pulse laser Boiling and bubble Thermal effect This paper demonstrated that micron-craters could be fabricated on both magnesium and Mg alloy surfaces by nanosecond pulsed laser processing. Experimental results revealed that the craters with broad distribution of dimension occurred after laser melting. Morphological difference at the irradiated surface between Mg and Mg alloy indicated that thermal properties, alloying elements and microstructure of irradiated materials were key factors responsible for crater formation. It was proposed that the craters were formed by combined effect of explosive volume boiling and generation of cavitation bubbles during laser melting. Thermal effect of nanosecond pulsed laser processing on Mg and Mg alloy as well as progressive formation of laser-induced crater was further discussed. Such phenomenon extended potential applications of Mg materials, which offered the potential for developing new types of Mg-based biomedical devices. ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2016-01-06T06:24:27Z 2019-12-06T15:55:59Z 2016-01-06T06:24:27Z 2019-12-06T15:55:59Z 2014 Journal Article Guan, Y., Zhou, W., Li, Z., & Zheng, H. (2014). Boiling effect in crater development on magnesium surface induced by laser melting. Surface and Coatings Technology, 252, 168-172. 0257-8972 https://hdl.handle.net/10356/85036 http://hdl.handle.net/10220/39592 10.1016/j.surfcoat.2014.05.002 en Surface and Coatings Technology © 2014 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Surface and Coatings Technology, Elsevier B.V. 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/10.1016/j.surfcoat.2014.05.002]. 10 p. application/pdf |
| spellingShingle | Mg and Mg alloy Crater Nanosecond pulse laser Boiling and bubble Thermal effect Guan, Yingchun Zhou, Wei Li, Zhongli Zheng, Hongyu Boiling effect in crater development on magnesium surface induced by laser melting |
| title | Boiling effect in crater development on magnesium surface induced by laser melting |
| title_full | Boiling effect in crater development on magnesium surface induced by laser melting |
| title_fullStr | Boiling effect in crater development on magnesium surface induced by laser melting |
| title_full_unstemmed | Boiling effect in crater development on magnesium surface induced by laser melting |
| title_short | Boiling effect in crater development on magnesium surface induced by laser melting |
| title_sort | boiling effect in crater development on magnesium surface induced by laser melting |
| topic | Mg and Mg alloy Crater Nanosecond pulse laser Boiling and bubble Thermal effect |
| url | https://hdl.handle.net/10356/85036 http://hdl.handle.net/10220/39592 |
| work_keys_str_mv | AT guanyingchun boilingeffectincraterdevelopmentonmagnesiumsurfaceinducedbylasermelting AT zhouwei boilingeffectincraterdevelopmentonmagnesiumsurfaceinducedbylasermelting AT lizhongli boilingeffectincraterdevelopmentonmagnesiumsurfaceinducedbylasermelting AT zhenghongyu boilingeffectincraterdevelopmentonmagnesiumsurfaceinducedbylasermelting |