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Get Full Access to Materials Science And Engineering: An Introduction - 9 Edition - Chapter 8 - Problem 8.42
Get Full Access to Materials Science And Engineering: An Introduction - 9 Edition - Chapter 8 - Problem 8.42

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# Solved: Steady-state creep rate data are given in the

ISBN: 9781118324578 140

## Solution for problem 8.42 Chapter 8

Materials Science and Engineering: An Introduction | 9th Edition

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Problem 8.42

Steady-state creep rate data are given in the following table for some alloy taken at 200C (473 K): ` # s (h-1 ) S[MPa (psi)] 2.5 103 55 (8000) 2.4 102 69 (10,000) If it is known that the activation energy for creep is 140,000 J/mol, compute the steady-state creep rate at a temperature of 250C (523 K) and a stress level of 48 MPa (7000 psi).

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Lecture 17: Test Review Lecture 18: (skipped) Lecture 19: Graphical Integration and Differentiation Graphical Integration and Differentiation  Integral: area under a curve  Derivative: slope of the tangent line to a curve Common integral/Derivative relationships  Acceleration : ∫dt : velocity : ∫dt : distance  Distance : d/dt : velocity : d/dt : acceleration  Force : ∫dx : work  Power : ∫dt : energy  Energy : d/dt : power  Current : ∫dt : charge  Charge : d/dt : current Integral of a square  If you know how to calculate the area of something, you can find the integral  For a constant speed and a given time, you can calculate distance traveled just by multiplying the 2 values - the area of a square Integ

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