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J Chin Soc Corr Pro  1985, Vol. 5 Issue (2): 117-125    DOI:
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THE CHEMICAL COMPOSITION CHARACTERISTICS OF PASSIVE F(?)M ON 304 STAINLESS STEEL SURFACE IN Cl~- CONTAINING SOLUTION
Lin Changjian Tian Zhaowu (Department of Chemistry;Xiamen University)
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Abstract  ESCA and AES combined with electrochemical methods were used to study the chemical composition and depth profile of anodic passive film on 18-8 stainless steel in Cl~- containing solution.The effect of Cl~- on chemical composition of passive film was examined emphatically.The results show that the anodic passive film on stainless steel surface consists mainly of Cr(Ⅲ) and Fe(Ⅲ)(Ⅱ)oxides and hydroxides,and bound water is rich in surface of passive film.The extent of oxidation of metal in passive film decreases with mcreasing depth.Cl~- can incorporate in the outer layer of passive film. However.the Cl~- incorporation in passive film is not the only factor causing the breakdown of passivity ot stainless steel.
Received:  25 April 1985     
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Lin Changjian Tian Zhaowu (Department of Chemistry;Xiamen University). THE CHEMICAL COMPOSITION CHARACTERISTICS OF PASSIVE F(?)M ON 304 STAINLESS STEEL SURFACE IN Cl~- CONTAINING SOLUTION. J Chin Soc Corr Pro, 1985, 5(2): 117-125.

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https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y1985/V5/I2/117

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