Interdiffusion of Elements in Aluminum 2024 Clad during Reheat Treatment Process at 495°C

Eddy Basuki; Sutarno Sutarno; Samuel Samuel

doi:10.4028/www.scientific.net/AMR.896.605

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 896Interdiffusion of Elements in Aluminum 2024 Clad...

Interdiffusion of Elements in Aluminum 2024 Clad during Reheat Treatment Process at 495°C

Abstract:

Aluminum alloy 2024 is normally strengthened with alloying elements of Cu and Mg. As these elements reduce the corrosion resistance of the materials, a pure Al clad is normally applied. Nevertheless, during ageing at high temperatures, inter-diffusion between elements can occur and causing the recession of the clad. This study investigates the inter-diffusion behavior Al 2024 clad at ageing temperature of 495°C and predicts the clad lifetime due to reheat treatment process. The depletion rate of clad was found at 0.8 μm per-hour of heat treatment. It is predicted that the thickness of the Al 2024 clad will no longer meet with the specifications on heat treatment for 42 hours at 495°C.

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Periodical:

Advanced Materials Research (Volume 896)

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605-608

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.896.605

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Online since:

February 2014

Authors:

Eddy Basuki*, Sutarno Sutarno, Samuel Samuel

Keywords:

Aluminium Alloy 2024, Cladding, Depletion Rate, Diffusion, Reheat Treatment

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