Creep

Creep is a type of deformation, and metals that undergo excessive creep deformation can oftentimes fail completely. Unfortunately, creep-related failures happen frequently and are hazardous to both property and human life. Being informed during the metal selection process can help avoid metal failure due to creep and the serious consequences that come with it.

Creep is defined as the time-dependent strain and deflection of a material under persistent stress. During creep, deformation of the material (e.g. a buried pipe) progresses gradually under a constant load to either equilibrium or fracture.

Creep is a type of metal deformation that occurs at stresses below the yield strength of a metal, generally at elevated temperatures. The rate of creep of a material depends on several factors including:

●       The material properties

●       The applied load (stress)

●       Exposure temperature, and

●       Exposure time

Due to the creep, After removal of a load which had been applied for a specific period on a pressure sensor’s diaphragm, some changes will occur in the sensor's output.