Corrosion behavior of nanocomposite Al-9 wt % Si alloy reinforced with carbon nanotubes

Abstract EN

An effort is made to study the effect of composite nanocoating using aluminum 9%wt silicon alloys reinforced with different percentage (0.5,1,2,4)wt.% of carbon nanotubes (CNTs) using plasma spraying.

The effect of this composite on corrosion behavior for AA6061-T6 by extrapolation Tafel test in sea water 3.5wt% NaCl was invested.

Many specimens where prepared from AA6061-T6 by the dimension (15x15x3)mm as this first set up and other steps include coating process, X-ray diffraction and SEM examination .The results show the CNTs increase the corrosion rate of the nanocomposite coatings with increasing the weight percentage of CNTs within the Al-Si matrix.

itself has less corrosion rate if compared with both nanocomposite coating and the substrate of