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J Chin Soc Corr Pro  1996, Vol. 16 Issue (1): 37-41    DOI:
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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.
Key words:  Corrosion of Fe in H_2SO_4      Effect of magnetic field      Ferric ion      Cathodic process     
Received:  25 February 1996     
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Lu Zhanpeng;Chen Junming. THE EFFECT OF MAGNETIC FIELD AND FERRIC IONS ON CATHODIC POLARIZATION BEHAVIOR OF IRON IN 0.5mol/L H_2SO_4 SOLUTION. J Chin Soc Corr Pro, 1996, 16(1): 37-41.

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https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y1996/V16/I1/37

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[1] CHEN Jun-ming LU Zhan-peng (Shanghai Institute of Metallurgy; Chinese Academy of Science; Shanghai 200050). ANODIC POLARIZATION BEHAVIOR OF Fe/Na_2SO_4 SYSTEM IN THE PRESENCE OF MAGNETIC FIELD AND ADDITIONAL IONS[J]. 中国腐蚀与防护学报, 1998, 18(2): 119-125.
[2] CHEN Junming LU Zhanpeng (Shanghai Institute of Metallurgy; Chinese Academy of Sciences). INSTANTANEOUS AND MEMORIAL CHARACTERISTICS OF THE EFFECT OF MAGNETIC FIELD ON POLARIZATIONBEHAVIOR OF IRON[J]. 中国腐蚀与防护学报, 1997, 17(4): 276-280.
[3] LU Zhanpeng CHEN Junming (Shanghai Institute of Metallurgy; Chinese Academy of Sciences). EFFECT OF MAGNETIC FIELD AND Cl~- ON ANODIC POLARIZATION BEHAVIOR OF IRON IN NEUTRAL 0.5mol/LNa_2SO_4 SOLUTION[J]. 中国腐蚀与防护学报, 1997, 17(1): 25-30.
[4] Lu Zhanpeng;Chen Junming(Shanghai Institute of Metallurgy; Chineae Academy of Sciences). EFFECTS OF TEMPERATURE AND ACID CONCENTRATION ON MAGNETIC-INDUCED HYDROGEN EVOLUTION OVERPOTENTIAL OF IRON IN HYDROCHLORIC ACID SOLUTIONS[J]. 中国腐蚀与防护学报, 1995, 15(4): 303-307.
[5] Cheng Yufeng;Du Yuanlong(Corrosion Science Laboratory;Institute of Corrosion and Protection of Metals;Chinese Academy of Sciences). FRACTURE MECHANISM OF MILD STEEL IN HYDROCHLORIC ACID CONTAINING Fe~(3+)[J]. 中国腐蚀与防护学报, 1995, 15(2): 81-86.
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