Microstructure and Propertyof Al-Ga-Mg

J Chin Soc Corr Pro

2005, Vol. 25

Issue (6): 336-339 DOI:

Research Report

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Microstructure and Propertyof Al-Ga-Mg

Yingying Zhang;Gongtai Qi;Bin Liu;Wenfeng Liu

华中科技大学化学系

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Abstract The open-circuit potential、work potential、self-corrosion rate and anode efficiency of Al-0.05Ga-1Mg、 Al-0.1Ga-1Mg (with and without thermal treatment ) have been studied in 25℃ 、4mol/L KOH solution, and the change of main segregation of anodes have been researched by EPMA and energy spectrum analysis. The results show that the potential of aluminum alloys move to negative with the increasing of Ga from 0.05% to 0.1%; Fe、Si mainly exist in grain boundary;the content of element Mg increases after thermal treatment ,that is harmful to the property of aluminum alloys; thermal treatment increases the cathode phase, the anode dfficiency decreases woth the cathode increasing and dropping.

Key words: aluminum alloy microstructure comprehensive property

Received: 23 July 2004

ZTFLH:

TG174.2

Corresponding Authors: Yingying Zhang E-mail: fairysmiling@eyou.com

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Yingying Zhang; Gongtai Qi; Bin Liu; Wenfeng Liu. Microstructure and Propertyof Al-Ga-Mg. J Chin Soc Corr Pro, 2005, 25(6): 336-339 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2005/V25/I6/336

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