Steady-state creep rate data are given here for a metal alloy. R = 8.3145 J/mol-K. T (°C) È, (h-1) 0.6x104 1.1x104 0.9x10-3 о (MPа) 150 550 150 250 750 750 (a) Calculate the activation energy for creep (Qc) in J/mol assuming stress exponent n is independent of temperature. (b) Estimate the creep strain rate at 500 °C when a constant strain of 100 MPa was applied to the same material.

Steady-state creep rate data are given here for a metal alloy. R = 8.3145 J/mol-K. T (°C) È, (h-1) 0.6x104 1.1x104 0.9x10-3 о (MPа) 150 550 150 250 750 750 (a) Calculate the activation energy for creep (Qc) in J/mol assuming stress exponent n is independent of temperature. (b) Estimate the creep strain rate at 500 °C when a constant strain of 100 MPa was applied to the same material.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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