The corrosion behavior of formic acid towards bronze under thin electrolyte layer (TEL) was investigated by means of electrochemical measurement. Bare bronze had smaller self-corrosion current density than Cu2O patina bronze and CuCl patina bronze, while it had higher polarization resistance. The corrosion behavior of bronze materials had differences in various TELs and bulk solutions. The critical thickness of TEL for Bare Bronze was 200 μm, which normly occurred in the transformation from anode control to cathode control. The thickness of TEL had a negligible effect on the corrosion rate of Cu2O patina bronze when it was greater than 150 μm. For CuCl patina bronze, the corrosion process accelerated with thinner TEL. SEM was used to analyze the morphology and composition of corrosion products. Cu2O,Cu(OH)(HCOO) and Cu(HCOO)2 were formed on the surface of Bare Bronze and Cu2O patina bronze, nevertheless, the main corrosion product of CuCl patina bronze was Cu2Cl(OH)3.

School of Resources and Environmental Engineering,East China University of Science and Technology,Shanghai 200237,China;Shanghai Museum,Shanghai 200050,China

[1]TANG Yijing;CAI Lankun;WANG Ying;WANG Min;ZHOU Hao;WU Laiming;YAN Ying-.Influence of Formic Acid on Corrosion Behavior of Bronze under Thin Electrolyte Layer)[J].武汉理工大学学报（材料科学版）（英文版）,2022(03):482-489

patina,TELs,normly

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