Role of Recrystallized Grains on the Environment-Assisted Cracking of Aluminium-Alloy

M. Bobby Kannan

doi:10.4028/www.scientific.net/MSF.753.489

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HomeMaterials Science ForumMaterials Science Forum Vol. 753Role of Recrystallized Grains on the...

Role of Recrystallized Grains on the Environment-Assisted Cracking of Aluminium-Alloy

Abstract:

In this study, the role of recystrallized grains on the environment-assisted cracking (EAC) susceptibility of a high strength aluminium alloy (Al-Zn-Mg-Cu) was examined using slow strain rate testing (SSRT) and U-bend test methods in chloride-containing solution. Experimental results suggest that the recrystallized grains in the peak-aged alloy are more prone to EAC. However, by altering the morphology and chemistry of the grain boundary precipitates of the recrystallized grains by overaging heat treatment, the alloy susceptibility to EAC reduced significantly.

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Periodical:

Materials Science Forum (Volume 753)

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489-492

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.753.489

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Online since:

March 2013

Authors:

M. Bobby Kannan

Keywords:

Aluminium Alloy, Environment-Assisted Cracking, Recrystallized Grains

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