2524铝合金包铝层在模拟油箱积水环境中结垢及其对腐蚀行为的影响

doi:10.3969/j.issn.1001-4381.2013.05.003

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Abstract Aluminum alloy corrosion and scaling is a universal problem during the use of fuel tank. The scaling and corrosion behavior of 2524 aluminum alloy with cladding were characterized and investigated in simulated fuel tank water environment by SEM, EDS and video microscope. Results indicate that the scaling behavior of 2524 aluminum alloy cladding in simulated fuel tank water environment can be divided into two states, the main component of scaling materials in the first state is Fe(OH)₃ colloid, and in the second state is precipitation of hydroxide. With time, scaling area could change by rule of specific power function. In the first 24h, scaling materials accelerate the corrosion of aluminum alloy cladding; after 24h they prevent further corrosion of the material in simulated fuel tank water environment.

Key words： 2524 aluminum alloy simulated fuel tank water environment scaling corrosion

Received: 13 April 2012 Published: 20 May 2013

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http://jme.biam.ac.cn/EN/10.3969/j.issn.1001-4381.2013.05.003 OR http://jme.biam.ac.cn/EN/Y2013/V0/I5/11

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