Alloying effect on K-shell fluorescence parameters of porous NiTi shape memory alloys

作者：Cengiz E^*; Ozkendir O M; Kaya M; Tirasoglu E; Karahan I H; Kimura S; Hajiri T

来源：Journal of Electron Spectroscopy and Related Phenomena, 2014, 192: 55-60.

DOI：10.1016/j.elspec.2014.01.002

• Alloying effect
• Production cross-section
• Intensity ratio
• Porous NiTi alloy

The K-alpha,K-beta shell production cross-sections and K-beta/K-alpha intensity ratios of porous Ni -49 at% Ti shape memory alloys were determined using energy dispersive X-ray fluorescence (EDXRF) technique. Also, the alloying effect on the K shell fluorescence parameters was investigated. The samples were excited by 59.5 key gamma-rays from an Am-241 annular radioactive source. The K X-rays emitted by the samples were counted by an Ultra-LEGe detector with a resolution of 150 eV at 5.9 key. The structure analyses of the samples were also made using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The deviations between the present results and theoretical values, calculated for pure Ti and Ni, were attributed to charge transfer phenomena and/or rearrangement of valance shell electrons and porosity.

• 出版日期2014-1