14 مهر 1403

ملیحه عمرانی

مرتبه علمی: استادیار
نشانی: پژوهشکده خلیج فارس - گروه زیست فناوری
تحصیلات: دکترای تخصصی / مهندسی هسته ای
تلفن: 077
دانشکده: پژوهشکده خلیج فارس

مشخصات پژوهش

عنوان The effect of TiN nanoparticles deposition with different number of shots on SS316L by plasma focus device
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
nanocrystalline titanium nitride; SS316L; Plasma focus (PF) device; SEM; XRD; corrosion
مجله Radiation Effects and Defects in Solids
شناسه DOI
پژوهشگران ملیحه عمرانی (نفر اول) ، رضا امراللهی (نفر دوم) ، مرتضی حبیبی (نفر سوم)

چکیده

In this paper, we present the result of TiN nanocrystalline deposition on SS316L, using a 4 kJ plasma focus (PF) device for 10, 20, and 30 focus shots. The effect of different number of focus shots on micro-structural changes of thin film is characterized by field emission scanning electron microscope. Existence of grains in different size confirms the formation of TiN nanocrystals on the surface of SS316L substrate. X-ray diffraction (XRD) reveals the formation of a nanocrystalline titanium nitride coating on the surface of SS316L samples. The crystalline size of TiN obtained from XRD data is strongly dependent on the number of focus shots. Thickness of the elements found on the surface of the treated sample that obtain by Rutherford backscattering spectroscopy (RBS) analysis is in the range of 150 × 1015 − 200 × 1015 atoms /cm2. All the existence elements in the coated samples are identified by Particle Induced X-ray Emission (PIXE) spectra. Investigation on the corrosion resistance of TiN coatings was performed using an electrochemical potentiodynamic polarization. Our results suggest that TiN nanocrystalline implantation with proper ion fluences using PF can significantly improve the corrosion resistance of SS316L.