EFFECT OF MAGNESIUM ON MICROSTRUCTURE ANDPERFORMANCE OF CONTAINING RE ALUMINUM ANODE

J Chin Soc Corr Pro

2001, Vol. 21

Issue (4): 220-224 DOI:

Research Report

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EFFECT OF MAGNESIUM ON MICROSTRUCTURE ANDPERFORMANCE OF CONTAINING RE ALUMINUM ANODE

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华中科技大学化学系应用化学教研室

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Abstract The electrochemical performance of Al-5Zn-0.05In-0. 1Sn-0.3RE and Al-5Zn-0.05In-0.1Sn-Mg-0.3RE alloy sacrificial anodes have been me asured with constant current method, and their microstructures have also been ex amined by metallography, scanning electron microscopy, and energy spectrum analy sis, Results showed that magnesium addition improved the performance of aluminum anode due to the change of the composition of segregation at grain boundary. Mg segregation at grain boundary decreased the corrosion of crystal grain boundary and dropping of crystal grain.

Key words: aluminum anode microstructure current efficiency ma gnesium

Received: 10 April 2000

ZTFLH:

TG174.2

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. EFFECT OF MAGNESIUM ON MICROSTRUCTURE ANDPERFORMANCE OF CONTAINING RE ALUMINUM ANODE. J Chin Soc Corr Pro, 2001, 21(4): 220-224 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2001/V21/I4/220

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