Corrosion Inhibition of Aluminum Alloy 2024-T3 by Sodium Molybdate

2013 ◽  
Vol 161 (3) ◽  
pp. C95-C106 ◽  
Author(s):  
O. Lopez-Garrity ◽  
G. S. Frankel
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Inhibition ◽  
Sodium Molybdate ◽  
Aluminum Alloy 2024

scholarly journals Corrosion Inhibition of Aluminum Alloy 2024-T3 by Aqueous Vanadium Species

2008 ◽  
Vol 155 (7) ◽  
pp. C350 ◽  
Author(s):  
K. D. Ralston ◽  
S. Chrisanti ◽  
T. L. Young ◽  
R. G. Buchheit
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Inhibition ◽  
Aluminum Alloy 2024 ◽  
Vanadium Species

scholarly journals Evaluation of Corrosion Inhibition Efficiency of Aluminum Alloy 2024 by Diaminostilbene and Azobenzene Schiff Bases in 1 M Hydrochloric Acid

2021 ◽  
Vol 2021 ◽  
pp. 1-20
Author(s):  
Shobha Bhaskara ◽  
Sanaulla Pathapalya Fakrudeen ◽  
Tegene Desalegn ◽  
H. C. Ananda Murthy ◽  
V. Bheemaraju
Keyword(s):  
Weight Loss ◽  
Aluminum Alloy ◽  
Schiff Base ◽  
Hydrochloric Acid ◽  
Corrosion Inhibition ◽  
Potentiodynamic Polarization ◽  
Inhibition Efficiency ◽  
2024 Alloy ◽  
Aluminum Alloy 2024 ◽  
Scanning Electron

The Schiff base compounds N,N ′ -bis(salicylidine)-4,4 ′ –diaminostilbene(SDS) and N,N ′ -bis(salicylidine)-4,4 ′ -diamino azobenzene(SDA) were synthesized, and their molecular structure was determined by FT-IR and 1H NMR. The corrosion inhibitions of Schiff base compounds on aluminum alloy 2024 in 1 M hydrochloric acid were evaluated by potentiodynamic polarization, impedance techniques, weight loss method, and scanning electron microscopic technique. The potentiodynamic polarization (PDP) studies revealed that SDS and SDA compounds acted predominantly as cathodic inhibitors. The electrochemical impedance spectroscopic (EIS) parameters confirmed the adsorption of SDS and SDA molecules over the surface of aluminum alloy 2024 alloy by forming an inhibitive layer. The weight loss studies showed that the inhibition efficiency of these compounds increases directly with concentration and decreases with an increase in solution temperature and immersion time. The thermodynamic parameters were calculated to investigate the mechanism of corrosion inhibition. The SDA was found to be more effective than SDS and followed the Langmuir adsorption isotherm model. The scanning electron microscopy (SEM) results revealed that the deterioration of the alloy surface is minimal in the presence of an inhibitor. Both Schiff base molecules exhibited superior corrosion inhibition for aluminum alloy 2024 alloy in HCl medium.

Corrosion Inhibition of Aluminum Alloy 2024-T3 by Praseodymium Chloride

CORROSION ◽  
10.5006/1244 ◽  
2014 ◽  
Vol 70 (9) ◽  
pp. 928-941 ◽  
Author(s):  
O. Lopez-Garrity ◽  
G.S. Frankel
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Inhibition ◽  
Praseodymium Chloride ◽  
Aluminum Alloy 2024

An Experimental Investigation of the Yield Loci of 1100-0 Aluminum, 70:30 Brass, and an Overaged 2024 Aluminum Alloy After Various Prestrains

1986 ◽  
Vol 108 (4) ◽  
pp. 313-320 ◽  
Author(s):  
D. E. Helling ◽  
A. K. Miller ◽  
M. G. Stout
Keyword(s):  
Aluminum Alloy ◽  
Small Strain ◽  
Yield Locus ◽  
Material Behavior ◽  
Shear Stresses ◽  
2024 Aluminum Alloy ◽  
Yield Loci ◽  
Aluminum Alloy 2024 ◽  
Von Mises ◽  
Normal And Shear Stresses

The multiaxial yield behaviors of 1100-0 aluminum, 70:30 brass, and an overaged 2024 aluminum alloy (2024-T7) have been investigated for a variety of prestress histories involving combinations of normal and shear stresses. Von Mises effective prestrains were in the range of 1.2–32%. Prestress paths were chosen in order to investigate the roles of prestress and prestrain direction on the nature of small-strain offset (ε = 5 × 10−6) yield loci. Particular attention was paid to the directionality, i.e., translation and distortion, of the yield locus. A key result, which was observed in all three materials, was that the final direction of the prestrain path strongly influences the distortions of the yield loci. Differences in the yield locus behavior of the three materials were also observed: brass and the 2024-T7 alloy showed more severe distortions of the yield locus and a longer memory of their entire prestrain history than the 1100-0 aluminum. In addition, more “kinematic” translation of the subsequent yield loci was observed in brass and 2024-T7 than in 1100-0 aluminum. The 2024-T7 differed from the other materials, showing a yield locus which decreased in size subsequent to plastic straining. Finally, the implications of these observations for the constitutive modeling of multiaxial material behavior are discussed.

Corrosion inhibition by sodium molybdate

1977 ◽  
Vol 54 (2) ◽  
pp. 437-448 ◽  
Author(s):  
M.S. Vukasovich ◽  
D.R. Robitaille
Keyword(s):  
Corrosion Inhibition ◽  
Sodium Molybdate
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