Laser-assisted chemical cleaning for oxide-scale removal from carbon steel surfaces
SCIE
SCOPUS
- Title
- Laser-assisted chemical cleaning for oxide-scale removal from carbon steel surfaces
- Authors
- Lim, H; Kim, D
- Date Issued
- 2004-02
- Publisher
- LASER INST AMER
- Abstract
- The article introduces a novel laser chemical processing technique for removing thin oxide layers on low-carbon steel surfaces by combining laser-induced shock waves and the chemical cleaning technique that is currently utilized in the conventional oxide-scale removal. A Q-switched Nd:yttritium-aluminum-garnet laser (wavelength 1064 nm, full width at half maximum 6 ns) induces optical breakdown in the acid solution, producing intense pressure waves which act as a noncontact scale breaker. It has been demonstrated that the novel process leads to substantial enhancement of the oxide-scale removal from the surfaces. The removal rate has been measured by optical microscopy, x-ray photoelectron spectroscopy, and energy-dispersive x-ray analysis. Parametric study has been performed to reveal the effect of laser-induced pressure pulse, acid concentration, and reaction time on the efficiency of oxide removal. This work demonstrates a technical feasibility of employing the proposed process in industrial applications which require special treatment, e.g., increased oxide-removal rate and selective surface processing. (C) 2004 Laser Institute of America.
- Keywords
- laser cleaning; laser chemical processing; optical breakdown; shockwave; oxide scale; CAVITATION BUBBLES; SHOCK-WAVES; WATER; GENERATION; BOUNDARIES; RESISTANCE; OXIDATION; PLASMA
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/18077
- DOI
- 10.2351/1.1642631
- ISSN
- 1042-346X
- Article Type
- Article
- Citation
- JOURNAL OF LASER APPLICATIONS, vol. 16, no. 1, page. 25 - 30, 2004-02
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