Rapid online analysis of trace elements in steel using a mobile fiber-optic laser- induced breakdown spectroscopy system

Qingdong ZENG (曾庆栋); Guanghui CHEN (陈光辉); Xiangang CHEN (陈献刚); Boyun WANG (王波云); Boyang WAN (万博阳); Mengtian YUAN (袁梦甜); Yang LIU (刘洋); Huaqing YU (余华清); Lianbo GUO (郭连波); Xiangyou LI (李祥友)

doi:10.1088/2058-6272/ab8a0b

Plasma Science and Technology > 2020 > 22(7): 74013-074013. > DOI: 10.1088/2058-6272/ab8a0b

Qingdong ZENG (曾庆栋), Guanghui CHEN (陈光辉), Xiangang CHEN (陈献刚), Boyun WANG (王波云), Boyang WAN (万博阳), Mengtian YUAN (袁梦甜), Yang LIU (刘洋), Huaqing YU (余华清), Lianbo GUO (郭连波), Xiangyou LI (李祥友). Rapid online analysis of trace elements in steel using a mobile fiber-optic laser- induced breakdown spectroscopy system[J]. Plasma Science and Technology, 2020, 22(7): 74013-074013. DOI: 10.1088/2058-6272/ab8a0b

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Rapid online analysis of trace elements in steel using a mobile fiber-optic laser- induced breakdown spectroscopy system

¹ School of Physics and Electronic-information Engineering, Hubei Engineering University, Xiaogan 432000, People's Republic of China
² Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
³ Faculty of Physics and Electronic Science, Hubei University, Wuhan 430062, People's Republic of China
⁴ Inner Mongolia North Heavy Industries Group Corp. Ltd, Baotou 014033, People's Republic of China

Funds: This work was supported by National Natural Science Foundation of China (Nos. 61705064, 11647122), the Natural Science Foundation of Hubei Province (Nos. 2018CFB773, 2018CFB672), and the Project of the Hubei Provincial Department of Education (No. T201617).

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Received Date: January 10, 2020
Revised Date: April 14, 2020
Accepted Date: April 15, 2020

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Abstract

Abstract

A mobile fiber-optic laser-induced breakdown spectrometer (FO-LIBS) prototype was developed to rapidly detect a large quantity of steel material online and quantitatively analyze the trace elements in a large-diameter steel tube. Twenty-four standard samples and a polynomial fitting method were used to establish calibration curve models. The R ² factors of the calibration curves were all above 0.99, except for Cu, indicating the elements’ strong self-absorption effect. Five special steel materials were rapidly detected in the steel mill. The average absolute errors of Mn, Cr, Ni, V, Cu, and Mo in the special steel materials were 0.039, 0.440, 0.033, 0.057, 0.003, and 0.07wt%, respectively, and their average relative errors fluctuated from 2.9% to 15.7%. The results demonstrated that the performance of this mobile FO-LIBS prototype can be compared with that of most conventional LIBS systems, but the more robust and flexible characteristics of the FO-LIBS prototype provide a feasible approach for promoting LIBS from the laboratory to the industry.
- laser-induced breakdown spectroscopy,
- optical fiber,
- rapid analysis,
- online detection,
- steel

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References (32)

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