Determination of Insoluble Aluminum Content in Steels by Laser-induced Breakdown Spectroscopy Method
作者单位：Central Iron & Steel Research Institute Group Sichuan University
会议名称：《“第十届中国钢铁年会”暨“第六届宝钢学术年会”》
会议日期：2015年
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
关 键 词：laser-induced breakdown spectroscopy insoluble aluminum content threshold value
摘 要：The insoluble aluminum content in steels has an important influence on the quality of the *** this paper,laser-induced breakdown spectroscopy（LIBS）was used to analyze the insoluble aluminum content in steel samples with scanning *** threshold value which was used to distinguish soluble and insoluble aluminum was calculated by an iteration *** this method the value of summation of the average intensity and 2.5 times of standard deviations was *** and soluble aluminum content calibration curves were generated and can be used for the determination of the total and soluble aluminum contents in steel *** insoluble aluminum content could be calculated by subtracting the soluble aluminum content from the total aluminum *** insoluble aluminum contents in standard spectrum steel samples and real steel samples were rapidly determined using this mathematical *** results agreed well with the value obtained by chemical methods.