螢光 X 線分析法による鉄鋼中微量アルミニウムの定量

概要

論文の詳細を見る
The accuracy of X-ray fluorescence analysis for determining aluminum in steel is generally poor when the aluminum content is below 0.1%. In this study, it is confirmed that the existence of inhomogeneous acid-insoluble aluminum causes the poor accuracy of X-ray fluorescence analysis. The accuracy can be improved by adding granular ferro-zirconium to molten steel when sampling. By using this method, the accuracy of determining aluminum was 0.0024% for low alloy steels and 0.0022% for stainless steels as the standard deviation obtained for a series of differences between an analytical result and a standard value. Corrections for overlapping of the chromium spectrum, and for absorption and enhancement effects of coexistent elements are not necessary for the analysis of low alloy steels, whereas these corrections are necessary for the analysis of stainless steels.
社団法人日本鉄鋼協会の論文
1981-08-01