Chromate replacement in coatings for corrosion protection of aerospace aluminium alloys

2010 ◽  
Vol 62 (9) ◽  
pp. 836-840 ◽  
Author(s):  
T. A. Markley ◽  
J. I. Mardel ◽  
A. E. Hughes ◽  
B. R. W. Hinton ◽  
A. M. Glenn ◽  
...  
Keyword(s):  
Corrosion Protection ◽  
Aluminium Alloys ◽  
Chromate Replacement

Slurry Erosive Wear Behavior of Forged Al6061-CeO2-TiO2 Hybrid Composites

2013 ◽  
Author(s):  
Ramesh Chinnakurli Suryanarayana ◽  
Ummar Khan Attaullah ◽  
Kumar Saheb ◽  
Apoorva Kumar ◽  
Manoj Kumar Rajput
Keyword(s):  
Aluminium Alloy ◽  
Corrosion Protection ◽  
Aluminium Alloys ◽  
Hybrid Composites ◽  
Wear Behavior ◽  
Hot Forging ◽  
Erosive Wear ◽  
Hot Extrusion ◽  
Matrix Alloy ◽  
Slurry Erosion

Aluminium alloys are being widely used in naval applications owing to their excellent corrosion resistance and high formability characteristics. One of the most popular naval components is the tarpedo blade which makes use of forged aluminium alloy followed by anodizing surface treatment for corrosion protection. In recent years, there have been few attempts to replace the conventional aluminium alloys by their composites for the tarpedo blade applications. Literature review clearly says that CeO2 (Ceria) coating on aluminium and aluminium composites enhances their corrosion protection in aggressive marine environment. Further, there are reports suggesting that combination of CeO2 and TiO2 do yield better corrosion protection. However, there is no information on the work related to development of hybrid ceramic reinforced aluminium alloy matrices with CeO2 and TiO2 as particulate reinforcements for potential naval applications. In the light of above, the present work focuses on the development of novel Al6061-CeO2-TiO2 hybrid metal matrix composite by stir casting route followed by hot extrusion with an extrusion ratio of 8:1 at a temperature 550 °C and hot forging at 475 °C. The developed forged hybrid composites and the matrix alloy have been evaluated for microstructure, micro hardness and slurry erosion wear tests as per the ASTM Standards.

scholarly journals Corrosion and Corrosion Protection of Additively Manufactured Aluminium Alloys—A Critical Review

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4804
Author(s):  
Reynier Revilla ◽  
Donovan Verkens ◽  
Tim Rubben ◽  
Iris De Graeve
Keyword(s):  
Additive Manufacturing ◽  
Corrosion Protection ◽  
Aluminium Alloys ◽  
Computer Aided Design ◽  
High Efficiency ◽  
Corrosion Behaviour ◽  
Weight Ratio ◽  
Future Research ◽  
Layer By Layer ◽  
Metal Parts

Metal additive manufacturing (MAM), also known as metal 3D printing, is a rapidly growing industry based on the fabrication of complex metal parts with improved functionalities. During MAM, metal parts are produced in a layer by layer fashion using 3D computer-aided design models. The advantages of using this technology include the reduction of materials waste, high efficiency for small production runs, near net shape manufacturing, ease of change or revision of versions of a product, support of lattice structures, and rapid prototyping. Numerous metals and alloys can nowadays be processed by additive manufacturing techniques. Among them, Al-based alloys are of great interest in the automotive and aeronautic industry due to their relatively high strength and stiffness to weight ratio, good wear and corrosion resistance, and recycling potential. The special conditions associated with the MAM processes are known to produce in these materials a fine microstructure with unique directional growth features far from equilibrium. This distinctive microstructure, together with other special features and microstructural defects originating from the additive manufacturing process, is known to greatly influence the corrosion behaviour of these materials. Several works have already been conducted in this direction. However, several issues concerning the corrosion and corrosion protection of these materials are still not well understood. This work reviews the main studies to date investigating the corrosion aspects of additively manufactured aluminium alloys. It also provides a summary and outlook of relevant directions to be explored in future research.

Silica mesoporous thin films as containers for benzotriazole for corrosion protection of 2024 aluminium alloys

2015 ◽  
Vol 346 ◽  
pp. 124-133 ◽  
Author(s):  
Isaline Recloux ◽  
Maixent Mouanga ◽  
Marie-Eve Druart ◽  
Yoann Paint ◽  
Marie-Georges Olivier
Keyword(s):  
Thin Films ◽  
Corrosion Protection ◽  
Aluminium Alloys ◽  
Mesoporous Thin Films

Ce-substituted Mg-Al layered double hydroxides to prolong the corrosion protection lifetime of aluminium alloys

2021 ◽  
pp. 151527
Author(s):  
Daniel E. L. Vieira ◽  
Andrei N. Salak ◽  
Mário G. S. Ferreira ◽  
Joaquim M. Vieira ◽  
Christopher M. A. Brett
Keyword(s):  
Corrosion Protection ◽  
Layered Double Hydroxides ◽  
Aluminium Alloys ◽  
Double Hydroxides

Features of the corrosion protection of aluminium alloys by creation of hydrophobic coatings

2017 ◽  
Author(s):  
S. L. Sinebryukhov ◽  
S. V. Gnedenkov ◽  
V. S. Egorkin ◽  
I. E. Vyaliy
Keyword(s):  
Corrosion Protection ◽  
Aluminium Alloys ◽  
Hydrophobic Coatings

scholarly journals Active corrosion protection of various aluminium alloys by lithium‐leaching coatings

2019 ◽  
Vol 51 (12) ◽  
pp. 1276-1287 ◽  
Author(s):  
Peter Visser ◽  
Herman Terryn ◽  
Johannes M.C. Mol
Keyword(s):  
Corrosion Protection ◽  
Aluminium Alloys ◽  
Active Corrosion
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