THE EFFECT OF SALTS ON THE CORROSION OF ZINC UNDER THIN LAYER ELECTROLYTE

J Chin Soc Corr Pro

2003, Vol. 23

Issue (1): 30-33 DOI:

Research Report

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THE EFFECT OF SALTS ON THE CORROSION OF ZINC UNDER THIN LAYER ELECTROLYTE

Xueyuan Zhang;Gan Yu;Enhou Han

中科院金属所金属腐蚀与防护国家重点实验室

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Xueyuan Zhang; Gan Yu; Enhou Han. THE EFFECT OF SALTS ON THE CORROSION OF ZINC UNDER THIN LAYER ELECTROLYTE. J Chin Soc Corr Pro, 2003, 23(1): 30-33 .

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Abstract A three-electrode electrochemical cell to study the corrosion behavior of metal under thin electrolyte was designed.With the increa sing of Cl-,and the anodic reaction was promoted,the transfer resistance and c orrosion potential decreased,the corrosion rate increased.With the decreasing of electrolyte layer thickness,the transfer resistance of zinc in 0.01 mol/L NaCl solution increased,and the corrosion rate decreased.In the bulk solution with di fferent salt,the order of effect on the corrosion of zinc from the severest to t he lightest is Na2SO4,NaNO3 ,Na2CO3 and NaCl,while under thin electrol yte,the order is NaCl,Na2SO4,NaNO3 and Na2CO3.

Key words: Zinc thin layer electrolyte salt

Received: 18 July 2001

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