مشخصات پژوهش

عنوان	A study on comparing surface characterization and electrochemical properties of single-layer CrN coating with nanostructured multilayer ZrN/CrN coating in 3.5 wt.% NaCl solution
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Keywords: Cae-pvd Electrochemical behavior Single layer Multilayer coating Zrn/crn
چکیده	The electrochemical behavior of single-layer CrN and nanostructured multilayer ZrN/CrN coatings, deposited on AISI 304 by arc-physical vapor deposition (Arc-PVD) process, was investigated in 3.5 wt.% NaCl solution using impedance and polarization measurements. The microstructure of both coatings were analyzed using a field emission scanning electron microscope. The polarization measurements showed that for the nanostructured multilayer ZrN/CrN coating, the corrosion potential shifted to greater potentials in comparison to the single layer CrN. In addition, the density of the corrosion current decreased for the nanostructured multilayer ZrN/CrN coating which represents a higher resistance to corrosion. The nanostructured multilayer ZrN/CrN coating demonstrated a superior corrosion resistance compared to the CrN single layer coating. The mean values of elastic modulus and hardness of the nanostructured multilayer ZrN/CrN coating were larger than those of the single layer CrN coating. Also, surface roughness (Ra) of the nanostructured multilayer ZrN/CrN coating was less than the single layer CrN.
پژوهشگران	پرویز محمدیان صمیم (نفر اول)، آرش فتاح الحسینی (نفر دوم)، حسن علم خواه (نفر سوم)، امید ایمان طلب (نفر چهارم)، میثم نوری (نفر پنجم)