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Corrosion Behavior

47 Articles

Smart Coatings for Corrosion Protection

Smart coatings provide a new approach to the important and established topic of protective coatings to protect metallic materials from external environmental influence such as corrosion.
Smart coatings go further by reacting and consequently performing in response to a range of external stimuli such as temperature, UV light, and pH changes.

Steels for Cryogenic and Low-Temperature Service

Carbon and alloy grades for low-temperature service are required to provide the high strength, ductility, and toughness in vehicles, vessels, and structures that must serve at –45°C and lower. Because a number of steels are engineered specifically for service at low temperature (about –100°C), selecting the optimum material calls for thorough understanding of the application and knowledge of the mechanical properties that each grade provides.

Stress Corrosion Cracking of Aluminum Alloys

Aluminum alloys that contain appreciable amounts of soluble alloying elements, primarily copper, magnesium, silicon, and zinc, are susceptible to stress-corrosion cracking (SCC).
An extensive failure analysis shows how many service failures occurred in the industry and what kind of alloys and stresses led to initiation and propagation of stress corrosion cracks which caused these service failures. Alloys 7079-T6, 7075 –T6 and 2024 – T3 contributed to more than 90% of the service failures of all high-strength aluminum alloys...

Corrosion of Titanium Alloys: Part One

Titanium is well known for its extremely tough characteristics in severe environments with specific applications in the chemical process industry, energy, desalination, military and many more.
The most important properties of titanium in relation to corrosion resistance are its immunity to both pitting and stress corrosion.

Wet Corrosion

Two clear and distinct types of corrosion include dry corrosion i.e. corrosive action without the presence of moisture and wet corrosion, involving the transfer of electrons during oxidation and reduction.