Effect of Coating Process Parameters on Corrosion Behavior of Ti-6Al-4V
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 305
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شناسه ملی سند علمی:
JR_MPMPJ-9-1_003
تاریخ نمایه سازی: 7 بهمن 1399
چکیده مقاله:
Titanium and its alloys (Ti-6Al-4V) are considered to be among the most promising engineering materials due to a unique combination of high strength to weight ratio, melting temperature, corrosion resistance, and biocompatibility. Anodizing is one of the coating methods that increases corrosion resistance and wear resistance and provides better adhesion of paint primers mostly applied to protect Al, Ti, Mg, and their alloys. The novel Plasma Electrolytic Oxidation (PEO) technique is gaining increased attention for depositing thick, dense, corrosion resistant, and hard ceramic coating on valuable metals (Al, Ti, and Mg). The aim of this research is a comparison between the corrosion behavior of anodized and plasma electrolytic oxidized Ti-6Al-4V at different voltages. The surface morphology, thickness, and phase composition of coatings were investigated using a scanning electron microscope and X-ray diffraction. The potentiodynamic polarization test was used to determine the corrosion behavior of the specimens. Results indicated that increasing of corrosion resistance by tests anodized sample at 50 V at 15 minutes and PEO sample at 375 V at 10 minutes.
کلیدواژه ها:
Ti-6Al-4V ، anodizing ، Plasma Electrolytic Oxidation (PEO) ، Thermal oxidation ، Corrosion Resistance
نویسندگان
Mohammad Hossein Majidi
Department of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Amin Rabiezadeh
Department of Materials Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Ahmad Afsari
Department of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran