Alloying effect on K shell X-ray fluorescence cross-sections and yields in Ti-Ni based shape memory alloys

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K shell X-ray fluorescence cross-sections ( σ Kα , σ Kβ and σ K ), and K shell fluorescence yields ( ω K ) of Ti, Ni both in pure metals and in different alloy compositions (Ti x Ni 1-x ; x = 0.3, 0.4, 0.5, 0.6, 0.7) were measured by using energy dispersive X-ray fluorescence (EDXRF) technique. The samples were excited by 22.69 keV X-rays from a 10 mCi Cd-109 radioactive point source and K X rays emitted by samples were counted by a high resolution Si(Li) solid-state detector coupled to a 4 K multichannel analyzer (MCA). The alloying effects on the X-ray fluorescence (XRF) parameters of Ti-Ni shape memory alloys (SMAs) were investigated. It is clearly observed that alloying effect causes to change in K shell XRF parameter values in Ti-Ni based SMAs for different compositions of x . Also, the present investigation makes it possible to perform reliable interpretation of experimental σ Kα , σ Kβ and ω K values for Ti and Ni in SMAs and can also provide quantitative information about the changes of K shell X-ray fluorescence cross sections and fluorescence yields of these metals with alloy composition.