Akademik Veri Yönetim Sistemi
Chemical Physics, cilt.377, sa.1-3, ss.100-108, 2010 (SCI-Expanded, Scopus)
In this study, σKα,β production cross-sections, K β/Kα, KLM/Kα and KMM/K β RAE intensity ratios of Ni and σKα, σKβ1,2 production cross-sections, Kβ1,3/K α, Kβ2,4/Kα, K β2,4/Kβ1,3, KLM/Kα and KMM/Kβ RAE intensity ratios of Mo have been measured in pure metals and in superalloy specimens. The samples were excited by 59.5 keV γ-rays from a 241Am annular radioactive source. K X-rays emitted by samples were counted by an Ultra-LEGe detector with a resolution of 150 eV at 5.9 keV. The effect of alloying on the fluorescence parameters of Ni and Mo, phase structure, and corrosion behavior were investigated. The X-ray fluorescence parameters of Ni and Mo in superalloys indicate significant differences with respect to the pure metals. These differences are attributed to the reorganization of valence shell electrons and/or charge transfer phenomena in superalloys. © 2010 Elsevier B.V. All rights reserved.