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Embrittlement is used to describe any phenomena where the environment compromises a stressed material's mechanical performance, such as temperature or environmental composition. This is oftentimes undesirable as brittle fracture occurs quicker and can much more easily propagate than ductile fracture, leading to complete failure of the equipment.
Intergranular cracking is dependent on the relative orientation of the common boundary between two grains. The path of intergranular fracture typically occurs along the highest-angle grain boundary. [6] In a study, it was shown that cracking was never exhibited for boundaries with misorientation of up to 20 degrees, regardless of boundary type ...
The rate of cracking and the end products are strongly dependent on the temperature and presence of catalysts. Cracking is the breakdown of large hydrocarbons into smaller, more useful alkanes and alkenes. Simply put, hydrocarbon cracking is the process of breaking long-chain hydrocarbons into short ones. This process requires high temperatures ...
Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses methods of analytical solid mechanics to calculate the driving force on a crack and those of experimental solid mechanics to characterize the material's resistance to fracture.
Slow self-sustaining crack propagation known as stress corrosion cracking, can occur in a corrosive environment above the threshold and below . Small increments of crack extension can also occur during fatigue crack growth, which after repeated loading cycles, can gradually grow a crack until final failure occurs by exceeding the fracture ...
Many people take great joy in cracking their knuckles, while others are so annoyed by the act it sends them into fits. Many people take great joy in cracking their knuckles, while others are so ...
Image credits: anon #6. My family are not comfortable around each other. Never any touching, kissing or cuddling. Any physical contact is forced and horribly awkward.
Proper selection of the right grade of material for the specific environment is important for the long-lasting performance of this group of materials. If breakdown occurs in the passive film due to chemical or mechanical factors, the resulting major modes of corrosion may include pitting corrosion, crevice corrosion, and stress corrosion cracking.