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Acta Metall Sin  1989, Vol. 25 Issue (3): 146-148    DOI:
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ELECTRON ENEGRY SPECTRUM ANALYSIS FOR PASSIVATING FILM OF Si-BEARING STAINLESS STEELS
FENG Xiuying;QIN Zirui;LI Longsheng;SHENG Shishan;LIU Dejing Dolian University of Technology Dalian Institute of Chemical Physics; Academia Sinica Dalian Anti-acid Pump Factory
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FENG Xiuying;QIN Zirui;LI Longsheng;SHENG Shishan;LIU Dejing Dolian University of Technology Dalian Institute of Chemical Physics; Academia Sinica Dalian Anti-acid Pump Factory. ELECTRON ENEGRY SPECTRUM ANALYSIS FOR PASSIVATING FILM OF Si-BEARING STAINLESS STEELS. Acta Metall Sin, 1989, 25(3): 146-148.

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Abstract  The surface film on Si-bearing stainless steels formed aftersoaking in concentratednitric acid for 216h was investigated by means of electron energy spectrum analysis. It canbe reached from this investigation that Si builds up in the surface film in the form of silica.It plays as a main passivating element in Si-bearing stainless steels in strong oxidizing medium,whereas Cr drops into the second place.
Key words:  Si-bearing stainless steels      passivating film     
Received:  18 March 1989     
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