Surface characteristics of aluminum 6061-T6 subjected to Nd:YAG pulsed-laser irradiation
- Title
- Surface characteristics of aluminum 6061-T6 subjected to Nd:YAG pulsed-laser irradiation
- Author
- 장경영
- Keywords
- Pulsed-laser; Diameter of the melted zone; Average surface roughness; Absorbance
- Issue Date
- 2012-07
- Publisher
- KOREAN SOCIETY OF MECHANICAL ENGINEERS
- Citation
- JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2012, 26(7), P.2163-2166
- Abstract
- The objective of this study was to investigate the surface characteristics of an aluminum 6061-T6 alloy subjected to Nd:YAG pulsed-laser irradiation. The test specimens were prepared by a mechanical polishing process using diamond paste and emery polishing paper to obtain different levels of initial surface roughness. After ten pulsed-laser shots, the surface morphology was observed via optical microscopy (OM) and scanning electron microscopy (SEM). Nano-indentation hardness testing was also conducted on the irradiated surface. The diameter of the melted zone increased with surface roughness because of the multiple reflection and absorption of the laser beam. The relative absorbance was measured as a function of the diameter of the melted zone with varied surface roughness.
- URI
- https://link.springer.com/article/10.1007/s12206-012-0537-xhttp://hdl.handle.net/20.500.11754/66423
- ISSN
- 1738-494X
- DOI
- 10.1007/s12206-012-0537-x
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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