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31 Jan 2022
- Steady state creep rate can be expressed by; És = Bo"e-/KT Apply this realtionship to the creep of a steel support rod in a boiler operating at 540 °C. The rod is stressed in tension to 40 MPa and its creep elongtion must not exceed 10 %. Using the data below, evaluate the constants in creep equation and estimate the lifetime of the rod.
- The following rupture times were obtained for stress rupture tests on steel alloy.Establish the validity of the Larsen-Miller parameter.
- determine the stress required to produce rupture in 2000hat 870C. Determine the rupture time at 760C for the same stress.
- Steady state creep rate can be expressed by; És = Bo"e-/KT Apply this realtionship to the creep of a steel support rod in a boiler operating at 540 °C. The rod is stressed in tension to 40 MPa and its creep elongtion must not exceed 10 %. Using the data below, evaluate the constants in creep equation and estimate the lifetime of the rod.
- The following rupture times were obtained for stress rupture tests on steel alloy.Establish the validity of the Larsen-Miller parameter.
- determine the stress required to produce rupture in 2000hat 870C. Determine the rupture time at 760C for the same stress.
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