Using Laser-induced Breakdown Spectroscopy Technique to Identify the Low-Carbon Steel in the Industrial Alloy

Abstract

Laser-induced breakdown spectroscopy system (LIBS) had been designed for analysis of the industrial alloy via analysis induced plasma emission, laser spectroscopy to plasma produce one of the applications resulting from the interaction of the laser beam with material. The design consists of Nd:YAG laser passively QSwitched with output energy (50-mJ @ 1064 nm) and (9 ns) pulse duration the laser beam was focused via converging lens with a focal length (100mm) that generates (7.07*10 8 W/mm 2 ) power intensity, optical analysis system was used that operated on the analysis of plasma light resulting from the interaction of lasers with the target, within spectrum range of 320-740 nm and (0.5nm) optical resolution. The analysis results obtained show a variety of metallic elements in the industrial alloy, the results obtained by using X-ray fluorescence system (XRF), and other spectral references have been compared. LIBS have shown detection of the main elements in the sample with other elements are manganese, aluminum, sulfur, phosphorus, silicon, and carbon, these elements not identified in the XRF.

Diagnostic Study of Copper Plasma in Air by Laser Induced Breakdown Spectroscopy (LIBS)

“…LIBS can be considered technique suitable for a wide range of different applications [10], due to its reliability [11], easy, fast, and in situ chemical analysis with a reasonable precision, detection limits, and cost, and there is no need for sample preparation [12]. Additionally, as is used to identify the the chemical elements [13][14][15], in soil studies [16], cleaning [17] , heritage and culture [18], T measurements of the plasma parameters [19,20], and Carbon Identify in low-carbon steel [15].…”