Abstract
This research has studied the effect of N 2/(N 2 + Ar) flow rate ratio ( F (N 2)) on the microstructure and anticorrosive property of zirconium nitride (ZrN) films deposited on AISI stainless steel (SS) 304 substrates. ZrN films were deposited using ion beam sputtering technique and their corrosion resistance has been investigated via electrochemical test using 0.5 M H 2SO 4 solution. The thickness of the films decreased with increase of N 2 flow rate. Results of X-ray diffraction (XRD) showed that all the films had a preferred crystalline orientation which changed from [220] axis at low F (N 2) to [111] axis at high F (N 2). The electrochemical test revealed that the corrosion resistance increased with increasing (111) preferred orientation. Furthermore, micrographs obtained by scanning electron microscopy (SEM) indicated that damages on the sample surface due to corrosive agent attacks may reduce with increasing film thickness.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have