Quantitative Auger Analysis for Fe Base Alloys Using Peak-to-Peak Value

Abstract

A quantitative analysis for the iron-base alloys was made by Auger Electron Spectroscopy (AES). The specimens fractured in UHV (ultra high vacuum) were used. A linear relationship between relative peak height I_X^R for the element X(X=Cr, Ni and Mo) and the atomic percentage C_X of the element X in Fe-X alloys was found. Relative sensitivity factor S_X^Fe of the element X to iron was measured experimentally as the proportional constant for the relation between relative peak height I_X^R and the atomic percentage C_X. The composition of alloying elements in Fe-Cr-Mo, Fe-Cr-Ni and Fe-Cr-Ni-Mo alloys was analysed using relative sensitivity factor S_X^Fe. Reasult of AES analyses showed a good coincidence with the chemical analyses.