stress corrosion cracking


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stress corrosion cracking

Failure in a metal as a result of cracks caused by the simultaneous interaction of sustained tensile stress at an exposed surface with the chemical or electro-chemical effects of the environment to which it is exposed.
References in periodicals archive ?
The factors influencing the tendency of pipe steel to stress corrosion cracking, Collection of works of a scientific-practical seminar "Problems of ageing of steel of transmission pipelines", Nizhni Novgorod, 2325 January, 164-177 (in Russian).
We have confidence that the process will provide mitigation of potential stress corrosion cracking.
Stress corrosion cracking is the formation of cracks caused by the combination of a corrosive environment inside the mold and the presence of tensile (stretching/flexing) forces.
For example, the stainless steel vessels used in the processing of a PVC slurry resulted in extensive fissuring and cracking in the welds as a result of chloride stress corrosion cracking.
Alcoa said the 7093 alloy is a "particularly good choice for forgings or extrusions where significant short transverse stresses are encountered and a high degree or resistance to stress corrosion cracking is required.
Laser surface melting (LSM) to repair stress corrosion cracking (SSC) in weld metal
DSS has excellent resistance to carbon dioxide (CO2) but the combination of hydrogen sulphide (H2S) and water-containing chlorides can lead to attack by crevice corrosion and stress corrosion cracking.
Stress corrosion cracking was first observed in pipelines in the US during the 1960s and in Canada during the 1980s, says Cheng (pipeline engineering, U.
This phenomenon was called Inter Granular Stress Corrosion Cracking (IGSCC).
The temperature of the corrosive agents also affects the susceptibility of materials to localised attacks which may occur in the form of pitting and crevice corrosion; stress corrosion cracking (SCC), sulphide stress cracking (SSC) or galvanically induced hydrogen stress cracking (GHSC).
This compressive stress acts to increase the component's resistance to failure mechanisms such as fatigue, fretting fatigue and stress corrosion cracking, which in turn translates into increased component life and reduced maintenance costs.
said Wednesday it suspects a fracture on one of its measurement tubes at a nuclear power reactor in the town of Takahama, Fukui Prefecture, may be a case of stress corrosion cracking.