Laser alloying of aluminium and 7175 aluminium alloy for enhanced corrosion resistance

1993 ◽  
Author(s):  
A. Almeida ◽  
R. Vilar ◽  
R. Li ◽  
M. G. S. Ferreira ◽  
K. G. Watkins ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Aluminium Alloy ◽  
Laser Alloying

Corrosion Resistance of Conversion Film Formed on Aluminium Alloy Using Cerium Salt Surface Treatment

2002 ◽  
Vol 18 (3) ◽  
pp. 224-227 ◽  
Author(s):  
W. Zhang ◽  
J.-Q. Li ◽  
Y.-S. Wu ◽  
J.-T. Xu ◽  
K. Chen
Keyword(s):  
Corrosion Resistance ◽  
Surface Treatment ◽  
Aluminium Alloy ◽  
Cerium Salt

ENHANCEMENT OF EXFOLIATION CORROSION RESISTANCE OF ALUMINIUM ALLOY 5083 BY SHOT PEENING

2018 ◽  
Vol 25 (07) ◽  
pp. 1950020
Author(s):  
A. VINOTH JEBARAJ ◽  
L. AJAYKUMAR ◽  
C. R. DEEPAK ◽  
K. V. V. ADITYA
Keyword(s):  
Corrosion Resistance ◽  
Aluminium Alloy ◽  
Shot Peening ◽  
Roughness Parameters ◽  
X Ray Diffraction ◽  
X Ray ◽  
Exfoliation Corrosion ◽  
Marine Applications ◽  
Textural Changes ◽  
Chloride Environment

The present work is an effort to study the influence of shot peening on the exfoliation corrosion behavior of aluminium alloy (AA) 5083. Surface textural changes induced by shot peening was characterized using microstructural and X-ray diffraction analysis. The surface roughness parameters were measured to study the benefits of peening induced surface topography. Further, the hardness survey was carried out to assess the severe plastic deformation on the peened layers. As a result, excellent resistance against exfoliation corrosion was achieved in the chloride environment. Shot peening plays major role in enhancing the corrosion resistance of AA 5083. In the absence of exfoliation attack, the unpeened sample surfaces such as ground, milled, and as received conditions end up with a significant pitting attack. The findings of this work will be useful for the aluminium alloy fabrications involved in the marine applications.

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