Effect of ageing time and temperature on corrosion behaviour of aluminum alloy 2014

7th National Conference on Processing and Characterization of Materials

Gadpale, Vikas^1 ; Banjare, Pragya N.^1 ; Manoj, Manoranjan Kumar^1

Department of Metallurgical Engineering, National Institute of Technology Raipur, Raipur, India^1

关键词: Ageing;    Al-alloy;    Aluminum alloy 2014;    Corrosion behaviour;    Corrosion tests;    Experimental testing;    Optical micrographs;    Optical microscopes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/338/1/012008/pdf
DOI  :  10.1088/1757-899X/338/1/012008

来源: IOP

【 摘 要 】

In this paper, the effect of corrosion behaviour of aluminium alloy 2014 were studied by potentiodynamic polarization in 1 mole of NaCl solution of aged sample. The experimental testing results concluded that, corrosion resistance of Aluminum alloy 2014 degraded with the increasing the temperature (150°C & 200°C) and time of ageing. Corroded surface of the aged specimens was tested under optical microscopes for microstructures for phase analysis. Optical micrographs of corroded surfaces showed general corrosion and pitting corrosion. The corrosion resistance of lower ageing temperature and lower ageing time is higher because of its fine distribution of precipitates in matrix phase.