Effect of Temperature and Stress

The basic nature of creep curve remains same at various stress level for several temperatures and vice-versa. However, higher the temperature higher will be the creep strain for same stress level and time lapse. Similarly, for a given temperature and same lapse of time creep strain will be higher at higher stress level. These effects are illustrated in Figure 1.45. It may be observed from this figure that steady state creep of stage II tend to become shorter as the temperature or stress increase at given stress level or temperature respectively

                            Figure: Effect of Temperature and Stress on Creep