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| THE EFFECT OF MAGNETIC FIELD AND FERRIC IONS ON CATHODIC POLARIZATION BEHAVIOR OF IRON IN 0.5mol/L H_2SO_4 SOLUTION |
| Lu Zhanpeng;Chen Junming |
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Abstract Cathodic processes of iron in Fe2（SO4）3 and H2SO4＋Fe2（SO4）3 solutions were studied in the presence of 0．4T（tesla）magnetic field at 20℃．It was found that Fe3+ reduction and H+ depolarization accelerated each other in the absence of magnetic field．Magnetic field accelerated the cathodic process of iron corrosion in Fe2（SO4）3 solution or in 0．5 mol／L H2SO4 solution but did not cnange the reaction mechanism.In 0．5 mol／L H2SO4+Fe2（SO4）3 solution a combined effect of magnetic field on Fe3+ reduction and H+ depolarization reaction was observed．The results were explained on the point of view that magnetic field changed the mass transfer process and the structure of electric double layer at the electrode-solution interface．
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Received: 25 February 1996
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| 1SrivastavaK;NigamN．Br．Corros．J,1988,23(3):1722GhabashyMA．Anti-Corrosion,1988,35(1):123GatosHC．J．Electrochem．Soc,1956,103(5):2864王晨,陈俊明·中国腐蚀与防护学报,1994,14(2):1235AaboubiO,ChopartJP,DougladeJ,OlivierA．J．Electrochem．Soc,1990,137(6):1796 |
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