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Updated: Jun 12, 2026

Quantitative Analysis of Vacuum Induction Melting by Laser-induced Breakdown Spectroscopy
Published on: June 10, 2019
[Experimental study on high alloy steel sample by laser-induced breakdown spectroscopy]
Qian-Jin Guo1, Hai-Bin Yu, Yong Xin
1Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China. cmpp3787@sina.com
Laser-induced breakdown spectroscopy (LIBS) offers a rapid, sample-prep-free method for analyzing high alloy steel. This study optimized LIBS conditions for trace analysis in metallurgical process control.
Area of Science:
- Analytical Chemistry
- Materials Science
- Spectroscopy
Context:
- Metallurgical process control demands rapid, accurate elemental analysis.
- Laser-induced breakdown spectroscopy (LIBS) is a promising technique due to its speed and minimal sample preparation.
- High alloy steels require precise compositional analysis for quality assurance.
Purpose:
- To investigate the feasibility of LIBS for trace analysis in high alloy steel.
- To systematically study the effects of experimental parameters on LIBS performance for steel analysis.
- To determine the optimal conditions for LIBS application in metallurgical settings.
Summary:
- This study employed a Nd:YAG laser and CCD detector for LIBS analysis of high alloy steel samples (GBW01605-01609).
- The effects of observation distance and laser power density on LIBS were systematically evaluated.
- Time-resolved LIBS spectra were analyzed to identify optimal conditions for trace element determination.
Impact:
- Established optimal experimental conditions for LIBS-based trace analysis in high alloy steels.
- Demonstrates LIBS as a viable tool for real-time process control in metallurgy.
- Provides a foundation for further development of LIBS applications in industrial material analysis.
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