Bilayer coatings for temporary and long–term corrosion protection of magnesium–AZ31 alloy

N-doped graphene could be a promising candidate for long-term corrosion protection of Cu because of its low conductivity compared to pristine graphene.

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An Investigation of the Dynamic Recrystallisation Behaviour of Magnesium AZ31 Alloy at 450°C Using Plane Strain Compression Testing as a Tool

Materials Science Forum ◽

10.4028/www.scientific.net/msf.715-716.164 ◽

2012 ◽

Vol 715-716 ◽

pp. 164-169

Author(s):

Bradley P. Wynne ◽

R. Bhattacharya ◽

Bruce Davis ◽

W.M. Rainforth

Keyword(s):

Strain Rate ◽

Plane Strain ◽

Testing Machine ◽

Az31 Alloy ◽

Plane Strain Compression ◽

Strain Rates ◽

Basal Texture ◽

Magnesium Az31 ◽

Dynamic Recrystallisation ◽

Double Hit

The dynamic recrystallisation (DRX) behaviour of magnesium AZ31 is investigated using a plane strain compression (PSC) testing machine at 450°C. The variables included strain rate, double hit including intermittent anneal and double hits with different strain rate at each hit. The alloy shows higher peak stress and strain with increasing strain rates. Predominant basal texture with different intensities are observed at different strain rates. The annealing treatment between double tests leads to strong basal texture. Reversal of strain rate during double hit results in similar flow curves. This shows that in AZ31 alloy, DRX mechanism is independent of the initial microstructure and only depends on the test condition viz. temperature, strain rate and total equivalent strain.

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Siloxane-polyacrylic sol-gel coatings with alkyl and perfluoroalkyl chains: Synthesis, composition, thermal properties and long-term corrosion protection

Applied Surface Science ◽

10.1016/j.apsusc.2021.151578 ◽

2021 ◽

pp. 151578

Author(s):

Ingrid Milošev ◽

Damir Hamulić ◽

Peter Rodič ◽

Charly Carrière ◽

Sandrine Zanna ◽

...

Keyword(s):

Thermal Properties ◽

Corrosion Protection ◽

Sol Gel ◽

Synthesis Composition

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Self-healing organic coatings based on microcapsules – A patent-based review

Current Applied Polymer Science ◽

10.2174/2452271604666210913103301 ◽

2021 ◽

Vol 04 ◽

Author(s):

Diego Moreira Schlemper ◽

Sérgio Henrique Pezzin

Keyword(s):

Corrosion Protection ◽

State Of The Art ◽

Review Article ◽

The State ◽

Organic Coatings ◽

Self Healing ◽

Future Challenges ◽

The Matrix ◽

Healing Agent

: Self-healing coatings are intended to increase long-term durability and reliability and can be enabled by the presence of microcapsules containing a self-healing agent capable of interacting with the matrix and regenerating the system. This review article provides an overview of the state-of-the-art, focusing on the patents published in the field of microcapsule-based self-healing organic coatings, since the early 2000’s. A discussion about coatings for corrosion protection and the different self-healing approaches and mechanisms are also addressed, as well as future challenges and expectations for this kind of coatings.

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