Abstract

Laser-induced breakdown spectroscopy has been used to determine carbon content in steel. The plasma was formed by focusing a Nd:YAG laser on the sample surface. With the use of time-resolved spectroscopy and generation of the plasma in nitrogen atmosphere, a precision of 1.6% and a detection limit of 65 ppm have been obtained. These values are similar to those of other accurate conventional techniques. Matrix effects for the studied steels are reduced to a small slope difference between the calibration curves for stainless and nonstainless steels.

Carbon determination in carbon-manganese steels under atmospheric conditions by Laser-Induced Breakdown Spectroscopy

Timur A. Labutin, Sergey M. Zaytsev, Andrey M. Popov, and Nikita B. Zorov
Opt. Express 22(19) 22382-22387 (2014)

Carbon analysis of steel using compact spectrometer and passively Q-switched laser for laser-induced breakdown spectroscopy

Volker Sturm, Benjamin Erben, Rüdiger Fleige, and Witalij Wirz
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Determinations of trace boron in superalloys and steels using laser-induced breakdown spectroscopy assisted with laser-induced fluorescence

Changmao Li, Zhongqi Hao, Zhimin Zou, Ran Zhou, Jiaming Li, Lianbo Guo, Xiangyou Li, Yongfeng Lu, and Xiaoyan Zeng
Opt. Express 24(8) 7850-7857 (2016)

Quantitative elemental analysis of steel using calibration-free laser-induced breakdown spectroscopy

M. L. Shah, A. K. Pulhani, G. P. Gupta, and B. M. Suri
Appl. Opt. 51(20) 4612-4621 (2012)

Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence

X. K. Shen, H. Wang, Z. Q. Xie, Y. Gao, H. Ling, and Y. F. Lu
Appl. Opt. 48(13) 2551-2558 (2009)