Power Plant Construction and QA/QC Chapter 7 – Nondestructive Examination Engineering Technology Division

2 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

3 Volumetric - Radiography Chapter 7 – Nondestructive Examination Source Type – Gamma, X- Ray, Neutron Film Type – Speed Material Type - Density Material Thickness – Exposure Duration

4 Chapter 7 – Nondestructive Examination Volumetric - Ultrasonic High Frequency Sound Type of Defect Type of Material Beam Angle

5 Surface – Liquid Penetrant Chapter 7 – Nondestructive Examination Multiple Types Surface Finish Temperature Sensitive Process Dependent

6 Surface – Magnetic Particle Chapter 7 – Nondestructive Examination Material Type - Ferrous Different Processes – Dry, Wet Type of Shot – Yoke, Head, Longitudinal Powder Size - Granularity

7 Visual - Subjective Chapter 7 – Nondestructive Examination Knowledge Based Experience Dominated Known Standards

8 Visual - Illusions Chapter 7 – Nondestructive Examination Are square A and B the same shade of gray?

9 Chapter 7 – Nondestructive Examination Visual - Illusions Are they the same height?

10 Chapter 7 – Nondestructive Examination Visual - Illusions

11 Chapter 7 – Nondestructive Examination Visual - Illusions

12 Chapter 7 – Nondestructive Examination Visual - Illusions Waterfall

13 Chapter 7 – Nondestructive Examination Visual - Illusions

14 Chapter 7 – Nondestructive Examination

15 Surface and Volumetric – Eddy Current Chapter 7 – Nondestructive Examination Thickness Dependent Thick – Surface Thin - Volume Contact not needed Multiple Configurations

16 Questions? Chapter 7 – Nondestructive Examination