SEMI - CONDUCTIVE BEHAVIOR DURING DEGRADATION OF A RUST PREVENTIVE OIL FILM ON 304 STAINLESS STEEL IN 3% NaCl SOLUTION
防锈油膜失效过程中的导电行为转变

In this paper,conducting transformation of a rust preventive oil film on 304 stainless steel in 3% NaCl solution under potential was studied by means of potential-capacitance method and Mott-Schottky analysis.It was pointed out that there existed semiconducting behaviour of the rust preventive oil film during its degradation.With increasing immersion time the rust preventive oil film transformed from p type semiconductor at the early stage of immersion to n type semiconductor,two transition layers of space charge gradually formed in the rust preventive oil film.N D and N A of oil film in different transition process were also calculated.