Microbially induced corrosion (MIC) is a type of corrosion that is either directly or indirectly caused by microorganisms, usually chemoautotrophs, and there are very few situations in which MIC cannot occur.
Passivation is a term that refers to a material becoming less affected by the operating environment. Generally passivation is used to strengthen and preserve the appearance of easily corroded metals.
Concrete has a tendency to ‘creep,’ or deform progressively under mechanical stress, which leads to many of the crumbling bridges and cracked roads we're now seeing across the US.
Hydrogen embrittlement occurs when metals become brittle, and eventually may fracture, because of the introduction and diffusion of hydrogen into the metal. Generally, this happens by accident and must be planned against for critical applications.
Stainless steel will not easily corrode, rust, or stain like carbon steel but is not completely resistant to stains and is vulnerable in certain environments.
Cathodic protection is a corrosion control technique that makes a metal surface the cathode of an electrochemical cell. This cathode is then connected to a sacrificial anode, which corrodes instead.