a) Explain the term Thermal Fatigue. In which situations it is veryprevalent. Write down the mechanical properties of the metal whichare most affected by thermal fatigue.b) If, for carbon steel, operating at 140 MPa, the Larson Millerparameter (LMP ) is 24000. Calculate the time of rupture of thismaterial at 800 °C. Where as,LMP = T(20+logt.); t = time to rupture in hour and Tis in deg Kelvin

Answered: a) Explain the term Thermal Fatigue. In…

a) Explain the term Thermal Fatigue. In which situations it is very prevalent. Write down the mechanical properties of the metal which are most affected by thermal fatigue.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

a) Explain the term Thermal Fatigue. In which situations it is very
prevalent. Write down the mechanical properties of the metal which
are most affected by thermal fatigue.
b) If, for carbon steel, operating at 140 MPa, the Larson Miller
parameter (LMP ) is 24000. Calculate the time of rupture of this
material at 800 °C. Where as,
LMP = T(20+logt.); t = time to rupture in hour and Tis in deg Kelvin

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