Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl 3 corrosion inhibitor

2019 ◽  
Vol 71 (3) ◽  
pp. 352-364 ◽  
Author(s):  
Bore Jegdić ◽  
Biljana Bobić ◽  
Suzana Linić
Keyword(s):  
Aluminium Alloy ◽  
Corrosion Inhibitor ◽  
Corrosion Behaviour ◽  
Nacl Solution

scholarly journals Corrosion behaviour of a 2219 aluminium alloy treated with a chromate conversion coating exposed to a 3.5% NaCl solution

2011 ◽  
Vol 53 (4) ◽  
pp. 1214-1223 ◽  
Author(s):  
Rossana Grilli ◽  
Mark A. Baker ◽  
James E. Castle ◽  
Barrie Dunn ◽  
John F. Watts
Keyword(s):  
Aluminium Alloy ◽  
Corrosion Behaviour ◽  
Conversion Coating ◽  
Nacl Solution ◽  
Chromate Conversion Coating

scholarly journals Inhibitive effect by Psidium guajava leaf extract on the corrosion of Al-Si-Mg (SSM-HPDC) alloy in simulated seawater environment

10.30544/70 ◽  
2015 ◽  
Vol 21 (4) ◽  
pp. 241-252 ◽  
Author(s):  
M. Abdulwahab ◽  
L.M. Sani ◽  
S.A. Yoro ◽  
O.B. Umaru
Keyword(s):  
Mass Loss ◽  
Corrosion Inhibitor ◽  
Potentiodynamic Polarization ◽  
Leaf Extract ◽  
Corrosion Behaviour ◽  
Gravimetric Method ◽  
Psidium Guajava ◽  
Nacl Solution ◽  
Temperature Ranges ◽  
Seawater Environment

The assessment of Psidium guajava leaf extract as corrosion inhibitor for Al-Si- Mg (SSM-HPDC) alloy in 3.5%wt NaCl solution using the gravimetric based-mass loss and potentiodynamic polarization techniques was investigated. The gravimetric based mass loss test was carried out at different inhibitor concentration, time and temperature ranges of 0.1-0.5%v/v, 1-5 hrs and 30-70oC, respectively, the results revealed that Psidium guajava leaf extract in 3.5%wt NaCl solution-aluminium environment decreased the corrosion rate at various concentrations considered. Inhibition efficiency (IE) as high as 63.17% at 0.5% v/v Psidium guajava leaf extract addition using the gravimetric method was demonstrated in 3.5%wt NaCl solution. The IE of 90.48% was obtained at 0.5%v/v using the potentiodynamic polarization method. The additions of Psidium guajava leaf extract as corrosion inhibitor in the solution indicate higher potential value, IE and polarization resistance with decrease in current density. The two methods used for assessment of the aluminium alloy corrosion behaviour were in agreement and mixed-type corrosion exists which obeyed the Langmuir adsorption isotherm.

Evaluation of Corrosion Behaviour for Aluminium Alloy 7075 in 5% NaCl Solution under Slightly Varying Temperature

2014 ◽  
Vol 984-985 ◽  
pp. 557-563
Author(s):  
D.S. Manoj Abraham ◽  
H. Kanagasabapathy ◽  
Richu John ◽  
Muthu Yasar ◽  
Shobin Paul
Keyword(s):  
Corrosion Resistance ◽  
Aluminium Alloy ◽  
Corrosion Behavior ◽  
Low Temperatures ◽  
Penetration Rate ◽  
Corrosion Behaviour ◽  
Nacl Solution ◽  
Small Temperature ◽  
Temperature Changes ◽  
Logarithmic Law

The main focus of this work is to study and evaluate the corrosion behavior of aluminium alloy 7075 under slightly varying temperature conditions. The corrosion behavior was found out using the Salt Mist test. Aluminium alloy 7075 possesses better corrosion resistance, so it is important to foresee the corrosion behavior of this alloy for varied applications. The Corrosion Penetration Rate was evaluated for the small temperature changes and the results show that the penetration rate increases as temperature increases gradually along with the time for which the specimens are tested. The final result is that aluminium alloy 7075 follows logarithmic law of corrosion at low temperatures.

Study of the influence of dithizone as an eco-friendly corrosion inhibitor on the corrosion behaviour of AA7075 aluminium alloy in neutral chloride solution

2021 ◽  
Vol 118 (2) ◽  
pp. 203
Author(s):  
Meryem Acila ◽  
Hakim Bensabra ◽  
Monica Santamaria
Keyword(s):  
Raman Spectroscopy ◽  
Aluminium Alloy ◽  
Corrosion Inhibitor ◽  
Reaction Kinetic ◽  
Corrosion Behaviour ◽  
Protective Film ◽  
Spectroscopy Analysis ◽  
Langmuir Adsorption ◽  
Aggressive Environment ◽  
Mixed Type Inhibitor

The effect of 1,5-diphenylthiocarbazone (dithizone) as an eco-friendly corrosion inhibitor for protection of AA7075 aluminium alloy in chloride containing aggressive environment was studied by means of weight-loss, electrochemical measurements and Raman spectroscopy. The results indicate that the addition of dithizone decreases significantly the corrosion rate of AA7075 alloy, with efficiency proportional to the inhibitor concentration. The polarization curves show that dithizone works as mixed-type inhibitor to slow down the anodic and cathodic reaction kinetic. The morphology revealed by scanning electron microscopy and the Raman spectroscopy analysis clearly shows that the inhibitor contributes in the formation of a stable protective film on the AA7075 alloy due to the adsorption of dithizone molecules on aluminium alloy surface obeying Langmuir adsorption isotherm.

Comparison of the corrosion behaviour in 5% NaCl solution of Mg alloys NZ30K and AZ91D

2007 ◽  
Vol 38 (2) ◽  
pp. 207-214 ◽  
Author(s):  
J. W. Chang ◽  
L. M. Peng ◽  
X. W. Guo ◽  
A. Atrens ◽  
P. H. Fu ◽  
...  
Keyword(s):  
Corrosion Behaviour ◽  
Mg Alloys ◽  
Nacl Solution

Effect of Cr and Zr Addition on the Corrosion Behaviour of Copper in the Chloride Solution

2011 ◽  
Vol 194-196 ◽  
pp. 1253-1256
Author(s):  
Ya Ni Zhang ◽  
Mao Sheng Zheng ◽  
Jie Wu Zhu
Keyword(s):  
Corrosion Resistance ◽  
Chloride Solution ◽  
Corrosion Behaviour ◽  
Pure Copper ◽  
Base Material ◽  
Nacl Solution ◽  
Corrosion Performance ◽  
Zr Addition ◽  
Corrosion Scales ◽  
Better Than

The corrosion behavior of CuCr, CuZr and CuCrZr alloys in NaCl solution is reported in this paper. The corrosion performance has been evaluated in NaCl solution atmosphere. The results show the corrosion resistance of pure copper decrease with the addition of the alloying elements initially. However, in the later exposure stages, the corrosion resistance of CuZr and CuCrZr alloy deteriorates significantly while the corrosion resistance of CuCr alloy is slightly better than that of pure copper. In addition, the results of the electrochemical experiments indicate that the different behavior for the element Cr and Zr in the base material and corrosion scales lead to the change of the corrosion resistance.

scholarly journals Influence of the microstructure and laser shock processing (LSP) on the corrosion behaviour of the AA2050-T8 aluminium alloy

2011 ◽  
Vol 53 (10) ◽  
pp. 3215-3221 ◽  
Author(s):  
H. Amar ◽  
V. Vignal ◽  
H. Krawiec ◽  
C. Josse ◽  
P. Peyre ◽  
...  
Keyword(s):  
Aluminium Alloy ◽  
Corrosion Behaviour ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing
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