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Small-invasive determination of iron content in coating of galvanized steel sheets by laser-induced breakdown spectroscopy
Alternative TitleSmall-invasive determination of iron content in coating of galvanized steel sheets by laser-induced breakdown spectroscopy
Lanxiang Sun1; Weiye Wang1; Meiting Guo1; Xueyong Tian4; Peng Zhang1; Lifeng Qi1; Haibin Yu1; Peng Zeng1
2019
Source Publication钢铁研究学报:英文版
ISSN1006-706X
Volume26.0Issue:010Pages:1137-1146
AbstractA new method was presented to determine the iron content in the coating of galvanized steel sheet based on laser-induced breakdown spectroscopy.The zinc-iron coating was characterized with a series of single laser pulses irradiated on the traversing sheet steel,each on a different steel sheet position.The influences of laser fluence and elemental depth distribution were studied and analyzed.To protect the corrosion performance of the coating and meet requirements for small-invasive measurement,the ablation size of the crater under different laser fluences was studied.Under the optimized experimental parameters,the diameter of ablation craters is about 50μm,and then,the Fe content in the coating was calibrated and analyzed by the linear standard calibration method.The calibration result,however,is not good.Considering that the Zn content in the coating was high and relatively constant,curve calibration was then carried out with the intensity ratio(IFe404.58/Izn468.01)instead of the net line intensity of Fe,and then,the determination coefficient of calibration curve increases from 0.7713 to 0.9511,and the root-mean-square error decreases from 0.4832%to 0.1509%.The results prove that the laser-induced breakdown spectroscopy is an effective way for the analysis of the Fe content in the coating of galvanized steel sheet.
Other AbstractA new method was presented to determine the iron content in the coating of galvanized steel sheet based on laser-induced breakdown spectroscopy. The zinc–iron coating was characterized with a series of single laser pulses irradiated on the traversing sheet steel, each on a different steel sheet position. The influences of laser fluence and elemental depth distribution were studied and analyzed. To protect the corrosion performance of the coating and meet requirements for small-invasive measurement, the ablation size of the crater under different laser fluences was studied. Under the optimized experimental parameters, the diameter of ablation craters is about 50 lm, and then, the Fe content in the coating was calibrated and analyzed by the linear standard calibration method. The calibration result, however, is not good. Considering that the Zn content in the coating was high and relatively constant, curve calibration was then carried out with the intensity ratio (I_(Fe404:58)=I_(Zn468:01)) instead of the net line intensity of Fe, and then, the determination coefficient of calibration curve increases from 0.7713 to 0.9511, and the root-mean-square error decreases from 0.4832% to 0.1509%. The results prove that the laser-induced breakdown spectroscopy is an effective way for the analysis of the Fe content in the coating of galvanized steel sheet.
KeywordLaser-induced breakdown spectroscopy Galvanized steel sheet Quantitative analysis Small-invasive analysis Iron content
Indexed ByCSCD
Language中文
CSCD IDCSCD:6600883
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/147481
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.Key Laboratory of Networked Control Systems,Chinese Academy of Sciences,Liaoning
3.Northeastern University,Liaoning
4.Central Research Institute,SIASUN Robot&Automation Co.,Ltd.,Liaoning
5.中国科学院大学
Recommended Citation
GB/T 7714
Lanxiang Sun,Weiye Wang,Meiting Guo,et al. Small-invasive determination of iron content in coating of galvanized steel sheets by laser-induced breakdown spectroscopy[J]. 钢铁研究学报:英文版,2019,26.0(010):1137-1146.
APA Lanxiang Sun.,Weiye Wang.,Meiting Guo.,Xueyong Tian.,Peng Zhang.,...&Peng Zeng.(2019).Small-invasive determination of iron content in coating of galvanized steel sheets by laser-induced breakdown spectroscopy.钢铁研究学报:英文版,26.0(010),1137-1146.
MLA Lanxiang Sun,et al."Small-invasive determination of iron content in coating of galvanized steel sheets by laser-induced breakdown spectroscopy".钢铁研究学报:英文版 26.0.010(2019):1137-1146.
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