Enhancing aluminum corrosion resistance by two-step anodizing process

Bouchama, L.; Azzouz, Noureddine; Boukmouche, N.; Chopart, Jean‐Paul; Daltin, Anne-Lise; Bouznit, Y.

doi:10.1016/j.surfcoat.2013.08.046

Cited by 67 publications

(42 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In recent years, nanoporous anodic aluminum oxide (AAO) prepared by electrochemical anodization has found a multitude of applications, such as catalysis [1], drug delivery [2], biosensing [3], template synthesis [4], molecular and ion separation [5], corrosion resistance [6], and so forth. The formation of AAO on the aluminum alloy surface would act as the corrosion barrier.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Corrosion Resistance Micro-Nanostructured Superhydrophobic Anodized Aluminum in a One-Step Electrodeposition Process

Huang

Sarkar

Chen

2016

Metals

View full text Add to dashboard Cite

Abstract:The formation of low surface energy hybrid organic-inorganic micro-nanostructured zinc stearate electrodeposit transformed the anodic aluminum oxide (AAO) surface to superhydrophobic, having a water contact angle of 160˝. The corrosion current densities of the anodized and aluminum alloy surfaces are found to be 200 and 400 nA/cm 2 , respectively. In comparison, superhydrophobic anodic aluminum oxide (SHAAO) shows a much lower value of 88 nA/cm 2 . Similarly, the charge transfer resistance, R ct , measured by electrochemical impedance spectroscopy shows that the SHAAO substrate was found to be 200-times larger than the as-received aluminum alloy substrate. These results proved that the superhydrophobic surfaces created on the anodized surface significantly improved the corrosion resistance property of the aluminum alloy.

show abstract

Section: Introductionmentioning

confidence: 99%

Fabrication of Corrosion Resistance Micro-Nanostructured Superhydrophobic Anodized Aluminum in a One-Step Electrodeposition Process

Huang

Sarkar

Chen

2016

Metals

View full text Add to dashboard Cite

show abstract

“…In addition, HA coating significantly increases surface hardness and corrosion resistance, and further simultaneously serves decorative purposes. [5] The other technique for improving the mechanical properties of metallic materials is to decrease the metal grain size by subjecting them to severe shear plastic deformation (SPD). Bulk materials with ultrafine grains (UFGs) processed with SPD have attracted great interest in the industrial field for their unique mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Mechanical Properties of AA 6063 Processed by Severe Plastic Deformation

Jafarlou

Zalnezhad

Faraji

et al. 2015

Metall Mater Trans A

View full text Add to dashboard Cite

In this study, the mechanical properties, including surface hardness, tensile strength, fatigue, and fretting fatigue behavior of AA 6063 processed by equal channel angular pressing as the most efficient severe shear plastic deformation (SPD) technique, were investigated. Following the SPD process, samples were subjected to heat treatment (HT), hard anodizing (HA), and a combination of HT and HA. Rotating-bending fretting fatigue tests were performed to explore the samples' response to the fretting condition. From the experimental fatigue and fretting fatigue tests, it was apparent that the SPD treatment had a positive effect on enhancing the fatigue and fretting fatigue lives of the samples at low and high-cyclic loads compared with the HT technique by 78 and 67 pct, and 131 and 154 pct respectively. The results also indicate that the SPD + HT technique significantly increased the fatigue and fretting fatigue lives of the samples at high and low cycles by 15.56 and 8.33 pct, and 14.4 and 5.1 pct respectively, compared with the SPD method. HA of AA6063 increased the fatigue and fretting fatigue lives of SPD + HT-processed samples at low cycle by 15.5 and 18.4 pct respectively; however, at high cycle, HA had reverse effects, whereby the fatigue and fretting fatigue lives of SPD + HT-processed samples decreased by 16.7 and 30 pct, respectively.

show abstract

“…Impedance spectroscopy is done in order to examine the electrical resistance of barrier layer before and after the thinning procedure. Additionally, the impedance of barrier layer directly could be related to its thickness as [88,89]:…”

Section: Impedance Spectroscopy Of Aluminum Oxide Template's Barrier mentioning

confidence: 99%

Fabrication of Highly Ordered Sn Nanowires in Anodic Aluminum Oxide Templates by Using AC Electrochemical Method

Sm¹,

Saba²

2018

Preprint

View full text Add to dashboard Cite

Sn and its nanostructures are one of the promising candidates to replace graphite in the anode of Lithium-ion batteries due to their higher capacity. One of the challenges, which limited the usage of Sn anodes for the Lithium-ion batteries, is Tin's high volumetric strain and its low cyclability. On the other hand, nanostructures show lower volume change during charge/discharge and as a result could address the cyclability issues. In this research, an alternating current (AC) electrochemical method is developed in order to facilitate the industrial scale production of Sn nanowires. The developed electrodeposition technique shows reliable controllability over chemical composition and crystalline structure of Sn nanowires. Also, the order structure of nanowires could be adjusted more accurately in comparison to conventional fabrication techniques. As a result, the Sn nanowires as well as Aluminum Oxide templates synthesized by using the developed electrochemical method are examined due to their morphology, chemical composition, and their crystalline structure in order to develop a practical relation between electrochemical composition of the solution and materials properties of Sn nanowires. The results show that the proposed electrodeposition method maintains a highly-ordered morphology as well as industrially acceptable controllability over crystalline structure of nanowires, which could be used to optimize the procedure for industrial applications due to low cost and simple experimental setup.

show abstract

Enhancing aluminum corrosion resistance by two-step anodizing process

Cited by 67 publications

References 38 publications

Fabrication of Corrosion Resistance Micro-Nanostructured Superhydrophobic Anodized Aluminum in a One-Step Electrodeposition Process

Fabrication of Corrosion Resistance Micro-Nanostructured Superhydrophobic Anodized Aluminum in a One-Step Electrodeposition Process

Evaluation of the Mechanical Properties of AA 6063 Processed by Severe Plastic Deformation

Fabrication of Highly Ordered Sn Nanowires in Anodic Aluminum Oxide Templates by Using AC Electrochemical Method

Contact Info

Product

Resources

About