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Table of Contents
Intro
Preface
Acknowledgements
Contents
About the Author
Part I Overview of Failure Mechanisms
1 Introduction
1.1 Material for Steam Boilers
1.2 Design Life of Components
1.3 Conclusion
References
2 Failure/Damage Mechanism of Boiler Tube
2.1 Short-Term Overheating
2.2 High Temperature Creep
2.2.1 Temperature Measurement Based on Steam Side Oxide Scale Thickness Measurement
2.3 Hydrogen Damage
2.4 Caustic Corrosion/Gouging
References
Part II Case Studies
3 Case 1A: Short-Term Overheating
3.1 Scope of Work
3.2 Examination Details
3.2.1 Visual Inspection
3.2.2 Dimensional Measurement
3.2.3 Chemical Analysis
3.2.4 Mechanical Properties (Tensile Test)
3.2.5 Metallographic Examination
3.2.6 Estimation of Peak Temperature
3.2.7 Discussion
3.2.8 Conclusion for Case Study 1A
References
4 Case IB: Short-Term Overheating
4.1 Scope of Work
4.2 Examination Details
4.2.1 Visual Inspection
4.2.2 Dimensional Measurement
4.2.3 Chemical Analysis
4.2.4 Metallographic Examination
4.2.5 Discussion
4.2.6 Conclusion for Case Study IB
5 Case IIA: High-Temperature Creep
5.1 Scope of Work
5.2 Examination Details
5.2.1 Visual Inspection
5.2.2 Dimensional Measurement
5.2.3 Chemical Analysis
5.2.4 Metallographic Examination and Hardness Measurement
5.2.5 Scale Thickness Measurement and Estimation of Tube Metal Temperature
5.2.6 Discussion
5.2.7 Conclusion for Case Study IIA
6 Case Study IIB: High-Temperature Creep
6.1 Scope of Work
6.2 Examination Details
6.2.1 Visual Inspection
6.2.2 Dimensional Measurement
6.2.3 Chemical Analysis
6.2.4 Metallographic Examination
6.2.5 Discussion
6.2.6 Conclusion for Case Study IIB
7 Case Study III: High-Temperature Failure
7.1 Scope of Work
7.2 Examination Details
7.2.1 Visual Inspection
7.2.2 Dimensional Measurement
7.2.3 Chemical Analysis
7.2.4 Metallographic Examination
7.2.5 Discussion
7.2.6 Conclusion for Case Study III
8 Case Study IV: Erosion Failure
8.1 Scope of Work
8.2 Examination Details
8.2.1 Visual Inspection
8.2.2 Dimensional Measurement
8.2.3 Chemical Analysis
8.2.4 Metallographic Examination
8.2.5 Discussion
8.2.6 Conclusion for Case Study IV
9 Case Study VA: Dissimilar Metal Weld
9.1 Scope of Work
9.2 Examination Details
9.2.1 Visual Inspection
9.2.2 Dimensional Measurement
9.2.3 Chemical Analysis
9.2.4 Metallographic Examination
9.2.5 Discussion
9.2.6 Conclusion for Case Study VA
9.2.7 Suggestion
10 Case Study VB: Dissimilar Metal Weld
10.1 Scope of Work
10.2 Examination Details
10.3 Discussion
10.4 Conclusion for Case Study VB
References
11 Case Study VIA: Hydrogen Damage
11.1 Scope of Work
11.2 Examination Details
11.2.1 Visual Inspection
11.2.2 Dimensional Measurement
11.2.3 Chemical Analysis
Preface
Acknowledgements
Contents
About the Author
Part I Overview of Failure Mechanisms
1 Introduction
1.1 Material for Steam Boilers
1.2 Design Life of Components
1.3 Conclusion
References
2 Failure/Damage Mechanism of Boiler Tube
2.1 Short-Term Overheating
2.2 High Temperature Creep
2.2.1 Temperature Measurement Based on Steam Side Oxide Scale Thickness Measurement
2.3 Hydrogen Damage
2.4 Caustic Corrosion/Gouging
References
Part II Case Studies
3 Case 1A: Short-Term Overheating
3.1 Scope of Work
3.2 Examination Details
3.2.1 Visual Inspection
3.2.2 Dimensional Measurement
3.2.3 Chemical Analysis
3.2.4 Mechanical Properties (Tensile Test)
3.2.5 Metallographic Examination
3.2.6 Estimation of Peak Temperature
3.2.7 Discussion
3.2.8 Conclusion for Case Study 1A
References
4 Case IB: Short-Term Overheating
4.1 Scope of Work
4.2 Examination Details
4.2.1 Visual Inspection
4.2.2 Dimensional Measurement
4.2.3 Chemical Analysis
4.2.4 Metallographic Examination
4.2.5 Discussion
4.2.6 Conclusion for Case Study IB
5 Case IIA: High-Temperature Creep
5.1 Scope of Work
5.2 Examination Details
5.2.1 Visual Inspection
5.2.2 Dimensional Measurement
5.2.3 Chemical Analysis
5.2.4 Metallographic Examination and Hardness Measurement
5.2.5 Scale Thickness Measurement and Estimation of Tube Metal Temperature
5.2.6 Discussion
5.2.7 Conclusion for Case Study IIA
6 Case Study IIB: High-Temperature Creep
6.1 Scope of Work
6.2 Examination Details
6.2.1 Visual Inspection
6.2.2 Dimensional Measurement
6.2.3 Chemical Analysis
6.2.4 Metallographic Examination
6.2.5 Discussion
6.2.6 Conclusion for Case Study IIB
7 Case Study III: High-Temperature Failure
7.1 Scope of Work
7.2 Examination Details
7.2.1 Visual Inspection
7.2.2 Dimensional Measurement
7.2.3 Chemical Analysis
7.2.4 Metallographic Examination
7.2.5 Discussion
7.2.6 Conclusion for Case Study III
8 Case Study IV: Erosion Failure
8.1 Scope of Work
8.2 Examination Details
8.2.1 Visual Inspection
8.2.2 Dimensional Measurement
8.2.3 Chemical Analysis
8.2.4 Metallographic Examination
8.2.5 Discussion
8.2.6 Conclusion for Case Study IV
9 Case Study VA: Dissimilar Metal Weld
9.1 Scope of Work
9.2 Examination Details
9.2.1 Visual Inspection
9.2.2 Dimensional Measurement
9.2.3 Chemical Analysis
9.2.4 Metallographic Examination
9.2.5 Discussion
9.2.6 Conclusion for Case Study VA
9.2.7 Suggestion
10 Case Study VB: Dissimilar Metal Weld
10.1 Scope of Work
10.2 Examination Details
10.3 Discussion
10.4 Conclusion for Case Study VB
References
11 Case Study VIA: Hydrogen Damage
11.1 Scope of Work
11.2 Examination Details
11.2.1 Visual Inspection
11.2.2 Dimensional Measurement
11.2.3 Chemical Analysis