Power Plant Construction and QA/QC Chapter 7 – Nondestructive Examination
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Transcript of Power Plant Construction and QA/QC Chapter 7 – Nondestructive Examination
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Power Plant Construction and QA/QC
Chapter 7 – Nondestructive Examination
Engineering Technology Engineering Technology DivisionDivision
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Overview
Chapter 7 – Nondestructive Examination
• Nondestructive Examination
• Qualified Personnel
• Surface and Volumetric Types
• Radiographic Examination – Volumetric – RT
• Ultrasonic Examination – Volumetric – UT
• Liquid Penetrant Examination – Surface – PT
• Magnetic Particle Examination – Surface – MT
• Visual Examination – Subjective – VT
• Eddy Current Examination – Surface and Volumetric – ET
• Leak Testing – Surface – LT
• Acoustic Emission Examination - AE
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Volumetric - Radiography
Chapter 7 – Nondestructive Examination
• Source Type – Gamma, X-Ray, Neutron
• Film Type – Speed
• Material Type - Density
• Material Thickness – Exposure Duration
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Chapter 7 – Nondestructive Examination
Volumetric - Ultrasonic
• High Frequency Sound• Type of Defect• Type of Material• Beam Angle
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Surface – Liquid Penetrant
Chapter 7 – Nondestructive Examination
• Multiple Types• Surface Finish• Temperature Sensitive• Process Dependent
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Surface – Magnetic Particle
Chapter 7 – Nondestructive Examination
• Material Type - Ferrous• Different Processes – Dry, Wet• Type of Shot – Yoke, Head, Longitudinal• Powder Size - Granularity
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Visual - Subjective
Chapter 7 – Nondestructive Examination
• Knowledge Based• Experience Dominated• Known Standards
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Visual - Illusions
Chapter 7 – Nondestructive Examination
Are square A and B the same shade of
gray?
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Chapter 7 – Nondestructive Examination
Visual - Illusions
Are they the same height?
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Chapter 7 – Nondestructive Examination
Visual - Illusions
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Chapter 7 – Nondestructive Examination
Visual - Illusions
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Chapter 7 – Nondestructive Examination
Visual - Illusions
Waterfall
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Chapter 7 – Nondestructive Examination
Visual - Illusions
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Chapter 7 – Nondestructive Examination
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Surface and Volumetric – Eddy Current
Chapter 7 – Nondestructive Examination
• Thickness Dependent
• Thick – Surface
• Thin - Volume
• Contact not needed
• Multiple Configurations
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Questions?
Chapter 7 – Nondestructive Examination