摘要
The chemical composition of alloys directly determines their mechanical behaviors and application fields. Accurate and rapid analysis of both major and minor elements in alloys plays a key role in metallurgy quality control and material classification processes. A quantitative calibration-free laser-induced breakdown spectroscopy（CF-LIBS） analysis method, which carries out combined correction of plasma temperature and spectral intensity by using a secondorder iterative algorithm and two boundary standard samples, is proposed to realize accurate composition measurements. Experimental results show that, compared to conventional CF-LIBS analysis, the relative errors for major elements Cu and Zn and minor element Pb in the copperlead alloys has been reduced from 12%, 26% and 32% to 1.8%, 2.7% and 13.4%, respectively.The measurement accuracy for all elements has been improved substantially.
The chemical composition of alloys directly determines their mechanical behaviors and application fields. Accurate and rapid analysis of both major and minor elements in alloys plays a key role in metallurgy quality control and material classification processes. A quantitative calibration-free laser-induced breakdown spectroscopy（CF-LIBS） analysis method, which carries out combined correction of plasma temperature and spectral intensity by using a secondorder iterative algorithm and two boundary standard samples, is proposed to realize accurate composition measurements. Experimental results show that, compared to conventional CF-LIBS analysis, the relative errors for major elements Cu and Zn and minor element Pb in the copperlead alloys has been reduced from 12%, 26% and 32% to 1.8%, 2.7% and 13.4%, respectively.The measurement accuracy for all elements has been improved substantially.
作者
赵书霞
张雷
侯佳佳
赵洋
尹王保
马维光
董磊
肖连团
贾锁堂
Shuxia ZHAO 1,2, Lei ZHANG1,2, Jiajia HOU 1,2, Yang ZHAO 1,2, Wangbao YIN1,2, Weiguang MA1,2, Lei DONG1,2, Liantuan XIAO 1,2, Suotang JIA(1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, People＇s Republic of China; 2. Collaborative Innovation Center of Extreme Republic of China Republic of China Optics, Shanxi University, Taiyuan 030006, People＇s Republic of Chin)
基金
financially supported by the National Key Research and Development Program of China(No.2017YFA0304203)
the Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(No.IRT13076)
National Natural Science Foundation of China(Nos.61475093,61378047,61775125)
the Shanxi‘1331 Project’Key Subjects Construction
the Major Special Science and Technology Projects in Shanxi Province(No.MD2016-01)
the State Key Lab of Power Systems for technical contribution and financial support
