The Relationship of High Strength Aluminum Alloy Corrosion Behavior and Corrosion Environment

Song Zhou; Li Hui; Liang Xu; Yu Tong Guo; Shao Hua Ma

doi:10.4028/www.scientific.net/AMR.904.86

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 904The Relationship of High Strength Aluminum Alloy...

The Relationship of High Strength Aluminum Alloy Corrosion Behavior and Corrosion Environment

Abstract:

The aim of this article is to research the characteristics of corrosion pit on 2xxx aluminum alloys in different environments (3.5wt% NaCl solution, water in fuel tank and wet air). Measure the area of corrosion pit, the depth of corrosion pit in different environments. The results show that in 3.5wt% NaCl solution: the initiation of surface corrosion pits mainly occur in 24h, with time increasing ,the depth of corrosion pit rises indistinctively; in water in fuel tank : during 24h-120h, with the extension of corrosion time, the maximum depth of corrosion pits changed a little, the maximum corrosion area became a little smaller than that in 3.5wt% NaCl solution; in wet air: the corrosion damage was smaller than that in 3.5wt% NaCl solution and water in fuel tank, the depth of the corrosion pit was about 20μm, the biggest size of corrosion pit area was about 0.5 x10⁴μm².

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Periodical:

Advanced Materials Research (Volume 904)

Pages:

86-89

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.904.86

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Online since:

March 2014

Authors:

Song Zhou*, Li Hui, Liang Xu, Yu Tong Guo, Shao Hua Ma

Keywords:

Aluminium Alloy, Corrosion, Exposed Area, Morpholoy

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