Creep and Mechanism of Creep

Lesson 7 of 10 • 2 upvotes • 7:23mins

Akhildev V P

Creep is one important phenomena that occurs in the material and it will result in the failure of material. It is a time dependent phenomena occurs at very low stress limits,for a long period of time at elevated temperatures. Elevated temperature is the temperature that is greater than 0.4 times the melting point of the material. So the creep and failure due to creep occurs even at low temperatures. Next is the stages of creep or creep mechanism. Primary creep, secondary creep and tertiary creep are the various stages of creeps in materials. Among that secondary creep was the longest region comparing to other two stages. Also strain hardening and recovery are two factors which affects the creep rate in materials. Temperature have very good influence on creep rate of materials. I was also discussed it here.