TY - JOUR ID - 18517 TI - Growth Defects and Chromium Content Loss during the Deposition of Stainless Steel by CAE-PVD and Its Effect on the Corrosion and Passivation Behavior of the Coating JO - International Journal of Iron & Steel Society of Iran JA - IJISSI LA - en SN - 2981-0388 AU - Sanati, A. AU - Raeissi, K. AU - Edris, H. AD - Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156- 83111, Iran. AD - Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156- 83111, Iran Y1 - 2015 PY - 2015 VL - 12 IS - 2 SP - 7 EP - 16 KW - Stainless steel coating KW - CAE-PVD KW - Growth defects KW - Corrosion KW - Passivation DO - N2 - In the present study, the effects of growth defects and chromium content loss on the degradation of corrosion and passivation of cathodic arc evaporation (CAE-PVD) of stainless steel coating were investigated in 2 M sulphuric acid solution. EDS analysis indicated that the micro-particles were obtained during the coating growth. In addition, it was detected that the growth defects had poor adhesion to the coating matrix and in the open circuit potential (OCP), they were detached from the coating, providing appropriate conditions for the penetration of the solution. In addition, loss of chromium during evaporation was found to be detrimental to the passivation of the stainless steel coating and the formation of a porous oxide layer. The average percent of the main elements of the coating, according to EDS area analysis, was Fe-13Cr-6Ni. Moreover, the lower semicircle diameter of the coating in electrochemical impedance spectroscopy (EIS) measurements revealed the lower polarization resistance of it, in comparison to that of the bulk 304 stainless steel. UR - https://journal.issiran.com/article_18517.html L1 - https://journal.issiran.com/article_18517_69bc9c685ed74e313da742c545d941f6.pdf ER -