Engineering Board Exam Reviewer · Engineering Materials · medium

The three stages of a typical creep curve are:

  1. Primary (transient), secondary (steady-state), and tertiary (accelerating)
  2. Elastic, plastic and fracture
  3. Nucleation, growth and coarsening
  4. Initiation, propagation and arrest

Answer

A. Primary (transient), secondary (steady-state), and tertiary (accelerating)

Solution

The steady-state creep rate is used for design.

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