Corrosion Behavior of Al 6082 T6 Hard Anodized Aluminum Alloy Specimens in Deep-Sea Environment

2016 ◽  
Vol 26 (4) ◽  
pp. 339-340 ◽  
Author(s):  
Elisa Canepa ◽  
Roberto Stifanese ◽  
Pierluigi Traverso
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Deep Sea ◽  
Anodized Aluminum

Cavitation Corrosion Behavior of Anodized Aluminum Alloy

CORROSION ◽  
2011 ◽  
Vol 67 (9) ◽  
pp. 095003-095003-5 ◽  
Author(s):  
X. Yong ◽  
C. Hou ◽  
J. Wu ◽  
Z. Zhang ◽  
D. Li
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Electrochemical Impedance ◽  
Electrochemical Corrosion ◽  
Porous Electrodes ◽  
Corrosion Mechanism ◽  
Nacl Solution ◽  
Anodized Aluminum ◽  
Three Stages ◽  
Cathodic And Anodic Processes

Abstract The cavitation corrosion behavior and surface morphology of anodized aluminum alloy in 3.5% sodium chloride (NaCl) solution were investigated using weight loss and scanning electron microscopy. The electrochemical corrosion mechanism during cavitation corrosion was studied using electrochemical polarization and electrochemical impedance spectroscopy (EIS). The cavitation corrosion process could be divided into three stages: quick removal of the porous outer layer, slowly fragmenting and removing of the dense inner layer, and fast erosion of the aluminum alloy. Increasing the thickness of the anodized layer improved the cavitation corrosion resistance of the anodized aluminum alloy. Electrochemical corrosion processes under cavitation conditions were controlled by mixed cathodic and anodic processes. EIS spectra of anodized aluminum alloy under cavitation conditions resembled those from porous electrodes. Cavitation accelerated the electrochemical corrosion. Cavitation corrosion of anodized aluminum alloy showed strong synergism between mechanical and electrochemical corrosion factors.

Effect of Sealing Treatments on the Corrosion Behavior of Micro-arc Oxidation Coating on Aluminum Alloy in Acid NaCl Solution

2015 ◽  
Vol 30 (6) ◽  
pp. 627
Author(s):  
YE Zuo-Yan ◽  
LIU Dao-Xin ◽  
LI Chong-Yang ◽  
ZHANG Xiao-Hua ◽  
ZANG Xiao-Ming ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Nacl Solution ◽  
Micro Arc Oxidation

Salt fog corrosion behavior of friction stir welded AA2014-T651 aluminum alloy

2016 ◽  
Vol 58 (11-12) ◽  
pp. 932-938 ◽  
Author(s):  
Kollapuri Thamilarasan ◽  
Sadayan Rajendraboopathy ◽  
Gankidi Madhusudhan Reddy ◽  
Tadivaka Srinivasa Rao ◽  
Sajja Rama ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Friction Stir ◽  
Salt Fog Corrosion ◽  
Salt Fog

scholarly journals Corrosion behavior of ultrafine-grained AA2024 aluminum alloy produced by cryorolling

2017 ◽  
Vol 24 (11) ◽  
pp. 1293-1305 ◽  
Author(s):  
P. Laxman Mani Kanta ◽  
V.C. Srivastava ◽  
K. Venkateswarlu ◽  
Sharma Paswan ◽  
B. Mahato ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Ultrafine Grained

Studies on salt fog corrosion behavior of friction stir welded AA7075–T651 aluminum alloy

2014 ◽  
Vol 105 (4) ◽  
pp. 375-385 ◽  
Author(s):  
T. Srinivasa Rao ◽  
G. Madhusudhan Reddy ◽  
G. Srinivasa Rao ◽  
S. R. Koteswara Rao
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Friction Stir ◽  
Salt Fog Corrosion ◽  
Salt Fog

The formation and corrosion behavior of a zirconium-based conversion coating on the aluminum alloy AA6061

2016 ◽  
Vol 13 (5) ◽  
pp. 837-850 ◽  
Author(s):  
Dongdong Peng ◽  
Junsheng Wu ◽  
Xiaoli Yan ◽  
Xiaoqiong Du ◽  
Yueying Yan ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Conversion Coating

scholarly journals Stress corrosion behavior of friction stir welding joint of 7N01 aluminum alloy

2021 ◽  
Vol 15 ◽  
pp. 1130-1144
Author(s):  
Yuzhe Pan ◽  
Yu Wang ◽  
Fuqiang Guo ◽  
Tiehao Zhang ◽  
Kenji Matsuda ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Stress Corrosion ◽  
Corrosion Behavior ◽  
Friction Stir ◽  
Welding Joint

Computational and Experimental Insights into the Role of Acidic Molecules on the Corrosion Behavior on 7A46 Aluminum Alloy

2021 ◽  
Vol 21 (4) ◽  
pp. 2221-2233
Author(s):  
Yaru Liu ◽  
Qinglin Pan ◽  
Xiangdong Wang ◽  
Ye Ji ◽  
Qicheng Liu ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
First Principles ◽  
First Principles Calculations ◽  
Corrosive Media ◽  
Corrosion Depth ◽  
Corrosion Mechanisms ◽  
Nanoscale Level

The corrosion mechanisms for different corrosive media on the aged 7A46 aluminum alloy were systematically investigated at nanoscale level. The combination of empirical intergranular and exfoliation corrosion behavior was employed, and coupled with first-principles calculations. Results revealed that the dispersed distribution of matrix precipitates (MPs) leads to the enhancement of the corrosion resistance pre-ageing (PA) followed by double-ageing (PA-DA) alloy. The deepest corrosion depth of PA-DA alloy was in hydrochloric acid, and the calculation result demonstrates that the passivation effect in combination with the accumulation of corrosion products in nitric acid protect the PA-DA alloy from further corrosion.

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