AMT及其复配剂对青铜合金的缓蚀机理研究

doi:10.11896/cldb.23020250

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Abstract Bronze cultural relics were the national treasure, and its structural composition was mainly bronze alloy. This article taken bronze alloys as the research object to explore the corrosion inhibition efficiency and mechanism of alloy surfaces, provided experimental support for the research on the performance of bronze heritage protection materials. The slow-release efficiency of 2-amino-5-mercapto-1, 3, 4-thiadiazole (AMT) combined urea and melamine as corrosion inhibitor for bronze alloy was studied by weight-loss method and electrochemical polarization test. The results showed that with the increase of AMT concentration, the slow-release efficiency of the sample in the three groups of experimental corrosion solution increased, and the slow-release efficiency of the 1%AMT compound urea group was the highest ones in NaCl solution. The results of electrochemical analysis showed that with the increase of AMT concentration in the electrolyte, the corrosion potential of 1%AMT combined urea group was 0.08 V higher than that of 1%AMT group, and the corrosion inhibition efficiency was 89.8%. SEM and XPS were used to analyze the AMT corrosion inhibitor film containing Cu on the surface of the sample, and the slow release mechanism was discussed. The results show that copper ions react with AMT to form Cu (I) - AMT complexes, which act as corrosion inhibitors on the surface of bronze.

Key words： bronze alloy slow release efficiency urea melamine slow release mechanism

Published: Online: 2024-06-25

CLC number:

TG178

Fund:National Key Research and Development Program of China (2020YFC1522000).

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	Articles by authors
	BI Jiangyuan
	SONG Shupeng
	DING Xing
	KE Deqing
	ZHOU Herong

Cite this article:

BI Jiangyuan,SONG Shupeng,DING Xing, et al. Study on Corrosion Inhibition Effect and Mechanism of AMT and Its Compound on Bronze Alloy[J]. Materials Reports, 2024, 38(11): 23020250-6.

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http://www.mater-rep.com/EN/10.11896/cldb.23020250 OR http://www.mater-rep.com/EN/Y2024/V38/I11/23020250

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