(a) Estimate the activation energy for creep (i.e., Qc in Equation 8.22) for the S-590 alloy having the steady-state creep behavior shown in animated Figure 8.33. Use data taken at a stress level of 300 MPa (43,500 psi) and temperatures of 650°C and 730°C. Assume that the stress exponent n is independent of temperature. (b) Estimate ė, at 600°C (873 K) and 300 MPa.
(a) Estimate the activation energy for creep (i.e., Qc in Equation 8.22) for the S-590 alloy having the steady-state creep behavior shown in animated Figure 8.33. Use data taken at a stress level of 300 MPa (43,500 psi) and temperatures of 650°C and 730°C. Assume that the stress exponent n is independent of temperature. (b) Estimate ė, at 600°C (873 K) and 300 MPa.
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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Question
![Part 2
X Carefully review Section 8.13 and note Equation 8.22. Use the value of Qc to find the If you are having difficulty with
this problem, you may wish to
other constant in your set of simultaneous equations. Make sure you used a
consistent set of units.
review:
Solving Equations
Solving Simultaneous Equations
Exponents and Logarithms
Determine the value of K, in h1.
K'
i
h-1
5.43E24
Hint
Assistance Used
Save for Later
Attempts: 9 of 10 used
Submit Answer](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc4143ea5-8f2b-4056-9e65-5542976a90ad%2F09788737-1fab-4988-b336-c1717b71d47c%2Fbom3i33_processed.png&w=3840&q=75)
Transcribed Image Text:Part 2
X Carefully review Section 8.13 and note Equation 8.22. Use the value of Qc to find the If you are having difficulty with
this problem, you may wish to
other constant in your set of simultaneous equations. Make sure you used a
consistent set of units.
review:
Solving Equations
Solving Simultaneous Equations
Exponents and Logarithms
Determine the value of K, in h1.
K'
i
h-1
5.43E24
Hint
Assistance Used
Save for Later
Attempts: 9 of 10 used
Submit Answer
![Current Attempt in Progress
(a) Estimate the activation energy for creep (i.e., Qc in Equation 8.22) for the S-590 alloy having the steady-state creep behavior
shown in animated Figure 8.33. Use data taken at a stress level of 300 MPa (43,500 psi) and temperatures of 650°C and 730°C.
Assume that the stress exponent n is independent of temperature.
(b) Estimate ė, at 600°C (873 K) and 300 MPa.
Part 1
Excellent!
What is Qc in J/mol?
Qc =
480000
J/mol](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc4143ea5-8f2b-4056-9e65-5542976a90ad%2F09788737-1fab-4988-b336-c1717b71d47c%2Flaumzrn_processed.png&w=3840&q=75)
Transcribed Image Text:Current Attempt in Progress
(a) Estimate the activation energy for creep (i.e., Qc in Equation 8.22) for the S-590 alloy having the steady-state creep behavior
shown in animated Figure 8.33. Use data taken at a stress level of 300 MPa (43,500 psi) and temperatures of 650°C and 730°C.
Assume that the stress exponent n is independent of temperature.
(b) Estimate ė, at 600°C (873 K) and 300 MPa.
Part 1
Excellent!
What is Qc in J/mol?
Qc =
480000
J/mol
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