Effects of Temper and Potential on Localized Corrosion Kinetics of Aluminum Alloy 7075

CORROSION ◽  
2007 ◽  
Vol 63 (8) ◽  
pp. 731-743 ◽  
Author(s):  
T-S. Huang ◽  
G. S. Frankel
Keyword(s):  
Aluminum Alloy ◽  
Localized Corrosion ◽  
Corrosion Kinetics ◽  
Aluminum Alloy 7075 ◽  
Kinetics Of

Inhibition of Aluminum Alloy 2024 Corrosion by Vanadates: An In Situ Atomic Force Microscopy Scratching Investigation

CORROSION ◽  
2007 ◽  
Vol 63 (7) ◽  
pp. 672-688 ◽  
Author(s):  
M. Iannuzzi ◽  
G. S. Frankel
Keyword(s):  
Atomic Force Microscopy ◽  
Aluminum Alloy ◽  
Open Circuit ◽  
Localized Corrosion ◽  
Chloride Solutions ◽  
Force Microscopy ◽  
Atomic Force ◽  
Aluminum Alloy 2024 ◽  
Kinetics Of

Abstract The morphology and kinetics of the localized corrosion of aluminum alloy (AA)2024-T3 (UNS A92024) at the open-circuit potential were investigated by in situ atomic force microscopy (AFM) scratching. The addition of metavanadate to chloride solutions resulted in outstanding corrosion inhibition. Samples exposed to 0.1 M sodium chloride (NaCl) with no inhibitor developed a trench-like attack at the periphery of large Al-Cu-Fe-Mn-(Si) intermetallic phases. The addition of dilute metavanadate markedly reduced the kinetics of the attack. In addition, most S-phase particles remained free of attack. Higher concentrations of metavanadate increased protection even further so that only high AFM tip forces could induce pitting corrosion. Corrosion attack was immediately observed when AA2024-T3 samples were exposed to chloride solutions containing orange decavanadates. The attack nucleated on the exposed surface but not under the AFM tip. The attack grew continuously, accompanied by gas evolution and formation of corrosion products. Optical inspection after the test indicated severe corrosion damage, confirming an overall poor performance of orange decavanadate solutions as corrosion inhibitors.

Sliding wear evaluation of aluminum alloy (7075-T6) on hardened steel (AISI4340) via non-contact technique by I-kaz™ multi-level analysis

Wear ◽  
2015 ◽  
Vol 334-335 ◽  
pp. 99-104 ◽  
Author(s):  
Z. Karim ◽  
M.Z. Nuawi ◽  
J.A. Ghani ◽  
M.J. Ghazali ◽  
S. Abdullah ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Sliding Wear ◽  
Hardened Steel ◽  
Multi Level ◽  
Wear Evaluation ◽  
Aluminum Alloy 7075 ◽  
Level Analysis

Corrosion kinetics of Al2O3+ZrO2·5CaO coatings applied on gray cast iron substrate

2017 ◽  
Vol 43 (17) ◽  
pp. 15708-15713 ◽  
Author(s):  
Abhinav ◽  
N. Krishnamurthy ◽  
Ranjana Jain
Keyword(s):  
Cast Iron ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Corrosion Kinetics ◽  
Kinetics Of

The steady-State corrosion kinetics of two-phase binary alloys forming the most-stable oxide

1996 ◽  
Vol 46 (5-6) ◽  
pp. 383-398 ◽  
Author(s):  
F. Gesmundo ◽  
P. Castello ◽  
F. Viani
Keyword(s):  
Steady State ◽  
Binary Alloys ◽  
Two Phase ◽  
Stable Oxide ◽  
Corrosion Kinetics ◽  
Kinetics Of
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