1986 Volume 35 Issue 4 Pages T33-T37
The study of the X-ray fluorescence analysis of main component and alloying elements in nickel-based heat-resisting alloys has been performed. The calibration curves were made by using NBS SRM's, JAERI and home-made nickel-based standard samples and the correction was made for the matrix effects using theoretical alpha coefficients. Accuracies (ad) for respective element obtained from those curves with correction were improved, especially for chromium and iron, in comparison with uncorrected ones. The relative standard deviation for each element was in the range of 0.251.27% with the exception of aluminum (0.26 Al%;r.s.d. 3.01%). The analytical ranges were as follows; Cr(12.7526.49%), Mo(1.09 9.18%), W(0.0194.57%), Co(0.398.90%), Ti(0.353.44%), Al(0.156.68%), Nb(0.885.38%), Fe(0.1223.2%), Mn(0.010.65%). The analytical values of nickel-based heat-resisting alloys such as Inconel 713LC, Mar-M247 and so on, showed good agreement with those determined by chemical analysis.
