%0 Journal Article
%@ .
%A Kartikasari, Ratna
%A Sutrisna, .
%A Aziz, Ihwanul
%D 2017
%F ITNYREPOID:3005
%I Cross Mark
%J The Open Materials Science Journal
%K Plasma nitriding, SS316L, Biomaterials, Corrosion resistance, Nitrogen, Fe4N
%N .
%P 29-37
%T Corrosion Behavior of Plasma Nitrided SS316L Biomaterial
%U https://repository.itny.ac.id/id/eprint/3005/
%V 11
%X Objective:  This research aims to determine corrosion behavior of SS316L biomaterial metals after plasma nitriding process.  Methods:  The plasma nitriding process on the surface of SS316L was performed at 350oC, 400oC, 450oC, 500oC, 550oC and 1.8 mbar  nitrogen gas pressure for 3 hours. The surface Nitrogen concentration level distribution from the surface was examined using Energy  Dispersive X-ray Spectroscopy, the phases formed after nitriding process were determined using X-ray Diffraction. The corrosion  resistance was investigated using three-electrode cell polarization method.  Result:  The results showed that the percentage of nitrogen concentration atoms on the surface of the SS316L after plasma nitriding process  was in range of 7.61-21.73%, in which the highest number 21.73% occurred at 500oC. Metal nitride formed on the surface of  SS316L for all temperature variations are Fe4N, CrN and β-Cr2N phases were formed after nitriding process. Optimum corrosion  resistance (8.21 x 10-4 mm/yr) occurs at 350oC.  Keywords: Plasma nitriding, SS316L, Biomaterials, Corrosion resistance, Nitrogen, Fe4N