UT Testing-Section 6 Selected Applications & Techniques

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Content: Section 6: Selected Applications & Techniques 6.1: Defects & Discontinuities 6.2: Rail Inspection 6.3: Weldments (Welded Joints) 6.4: Pipe & Tube 6.5: Echo Dynamic 6.6: Technique Sheets 6.7: Material Properties-Elastic Modulus Measurements 6.8: High Temperature Ultrasonic Testing 6.9: Thickness Gauging 6.10: In-Service Inspection Continues next page….
6.11: Casting 6.12: Inspection of bonded Joints 6.13: Corrosion Monitoring 6.14: Crack Monitoring 6.15: Residual Stress Measurements 6.16: Bond Testing Appendix: (Non-exam) 6.App-1: TOFD Introduction
Page 1: Section 6: Selected Applications &
Page 7 and 8: 6.1.1 Casting Defects & Discontinui
Page 9 and 10: Casting Defects & Discontinuities-
Page 11 and 12: Casting Defects & Discontinuities
Page 13 and 14: Casting Defects & Discontinuities
Page 31 and 32: Processing Defects & Discontinuitie
Page 39: 6.1.3 Welding Defects & Discontinui
Page 42 and 43: Welding Defects & Discontinuities
Page 48 and 49: Welding Defects & Discontinuities-
Page 50 and 51: Welding Defects & Discontinuities-
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Welding Defects & Discontinuities-
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Service Induced Defects & Discontin
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Figure 4-24 - In a carbon steel sam
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Figure 4-36 - Weld detail used to j
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Figure 4-38 - Failure of DMW joinin
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Figure 4-58 - Cross-sectional view
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Figure 5-2 - Hot Lean Amine Corrosi
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Figure 5-46 - Overhead interstage k
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Figure 5-48 - Metallographic sample
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6.2: Rail Inspection
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The need for a better inspection me
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Transverse Fissure
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One of the methods used to inspect
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Techniques: Examples of axles with
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6.3: Weldments (Welded Joints)
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UT of Weldments (Welded Joints) F s
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Flaw Detection- Depth Determination
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T = Plate Thickness ϴ = Shear wave
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Flaw Detection- Triangulations of r
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To determine the proper scanning ar
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Expert at works
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Typically scanning patterns
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Weld Scanning
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Weld Scanning
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Echo Dynamic- Position of Defects
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Plate Weld Scanning
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Plate Weld Scanning
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Practice Makes Perfect 52. One of t
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6.4: Pipe & Tube
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Pipe & Tube
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Pipe Scanning
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Pipe Scanning 48.59 o max 30 o max
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Pipe Scanning
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Pipe Scanning- thickness/OD ratio W
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Pipe Scanning- Contact Methods
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Q: Calculate the maximum shear wave
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Q35: During immersion testing of pi
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6.5: Echo Dynamic
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6.5.1 Basic echodynamic pattern of
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C.1 Pattern 1 Point-like reflector
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C.2 Pattern 2 Extended (elongated)
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C.3 Pattern 3a Extended (elongated)
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C.3 Pattern 3b Oblique incidence, t
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C.3 Pattern 3b Oblique incidence, t
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C.4 Pattern 4 Multiple reflector re
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Echodynamic- Change of echo height
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Break Time
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Echo Dynamic of Discontinuity- Flaw
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Echo Dynamic of Discontinuity- Impr
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Echo Dynamic of Discontinuity- Refl
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Echo Dynamic of Discontinuity- Tand
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Echo Dynamic of Discontinuity- Tand
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Echo Dynamic- Root Concavity
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Echo Dynamic
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Echo Dynamic
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Echo Dynamic- Broad indication with
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Echo Dynamic
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Echo Dynamic The echo response from
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Echo Dynamic Typical Echo Dynamic P
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Echo Dynamic Typical Echo Dynamic P
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Q183. In immersion testing, irrelev
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Q46. Which best describes a typical
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6.6: Technique Sheets
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Hanger Pin Testing using Shear Wave
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Physical Dimension
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Physical Dimension
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Reporting: Scanning Report - Top of
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Mock-Up
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Mock-Up
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Mock-Up
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Hanger Pin Testing using Shear Wave
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Pitch and Catch Methods- Set-up
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6.7: Material Properties- Elastic M
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6.7.2 The attenuation method The at
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6.7.3 Velocity Measurements Velocit
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Elastic Modulus Measurement - Young
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These basic material properties, wh
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Equipment: The velocity measurement
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Testing Procedure: Equipment Used.
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Velocity & Equations Poisson Ratio
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6.8: High Temperature Ultrasonic Te
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1.0 Background: Although most ultra
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Temperature Limitation: Conventiona
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敦煌大漠美食 -50 度火
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2.0 Methods used for H.Temperature
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For precision thickness gauging app
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(1b) Flaw detection As in high temp
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2.2 High Temperature Couplants Most
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Keyword: Note that normal incidence
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As a general rule, if the outer cas
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2.4 Equipment Functions Freeze Func
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Keyword: ■ ■ Velocity change of
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3.3 Increased Attenuation: Sound at
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3.4 Angular Variation in Wedges: Wi
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6.9: Dimension-Measurement Applicat
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6.9.2 Thickness measurements are ma
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6.9.3 Position measurements Positio
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Fig. 60 Method of determining corre
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Fig. 61 Setup for determining the p
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6.10: In-Service Inspection
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In-Service Inspection- Testing for
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In-Service Inspection- (a) Crack te
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In-Service Inspection- (a) Testing
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6.11: Casting
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Casting- Typical casting defects an
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Casting- Detection of shrinkage cav
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Inspection of Bonded Joints If the
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6.13: Corrosion Monitoring
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Despite these drawbacks, ultrasonic
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Crack Monitoring Laboratory and in-
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The use of pulse-echo techniques fo
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6.15: Stress Measurements
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The real limitation of this techniq
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The real limitation of
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6.App-1: TOFD Introduction NOTE: No
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TOFD provides a wide area of covera
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TOFD offers rapid weld inspection w
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Due to the low amplitude of the dif
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Tips Diffractions
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TOFD
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TOFD has been used for some time fo
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Figure 5-2 - Hot Lean Amine Corrosi
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For these types of weld inspections
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Scan of weld with cursor positioned
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Measurement of good area shows thic
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6.11.3.3TOFD for Corrosion Measurem
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TOFD for Weld- TOFD Parallel Scanni
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■ Perpendicular Scanning Scanning
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Typical “Perpendicular” Weld Sc
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■ Benefit of TOFD Parallel Scanni
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The Experts at work.
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Break Time mms://a588.l3944020587.c
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Break Time
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UT Testing-Section 6 Selected Applications & Techniques

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