ASNT Level III- Visual & Optical Testing

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Strain replication is especially useful for materials that do not exhibit creep void formation until late in their service life. As long as the strain calculations indicate a linear relationship between strain and time, the material is still said to be in the second stage region on the creep curve (see Fig. 62 and Table 14). When the relationship deviates from linearity, the material has begun third stage or tertiary creep, where the strain rate can become unstable. Charlie Chong/ Fion Zhang
FIGURE 56. Principles of acetate tape replication producing a negative image of the surface: (a) microstructure cross section, In softened acetate tape applied, (cJ replica curing and (d) replica removal Charlie Chong/ Fion Zhang
Page 1 and 2: ASNT Level III- Visual & Optical Te
Page 3 and 4: At works Charlie Chong/ Fion Zhang
Page 5 and 6: Charlie Chong/ Fion Zhang Fion Zhan
Page 7 and 8: SECTION 4: BASIC AIDS AND ACCESSORI
Page 9 and 10: PART 4: MACHINE VISION TECHNOLOGY 4
Page 11 and 12: PART 6: TEMPERATURE INDICATING MATE
Page 13 and 14: PART 4: MACHINE VISION TECHNOLOGY 1
Page 15 and 16: 5.1 Cellulose Acetate Replication A
Page 17 and 18: 5.1.2 Fracture Surface Analysis The
Page 19 and 20: Replicas, in the as-stripped condit
Page 21 and 22: Microstructural replication is done
Page 23 and 24: If analysis with the scanning elect
Page 25 and 26: Sputter deposition is a physical va
Page 27 and 28: Sputtering http://en.wikipedia.org/
Page 29 and 30: Sputtering http://clearmetalsinc.co
Page 31 and 32: Sputter Deposition Charlie Chong/ F
Page 33: 5.1.4 Strain Replication The replic
Page 37 and 38: Fatigue striations Charlie Chong/ F
Page 39 and 40: FIGURE 59. Documentation of creep d
Page 41 and 42: FIGURE 60. Documentation of stress
Page 43 and 44: TABLE 14. Action required for creep
Page 45 and 46: Cellulose Acetate Replication http:
Page 47 and 48: Replication Microscopy Techniques f
Page 49 and 50: Replication Microscopy Techniques f
Page 51 and 52: 5.2.1 Use of Silicone Replicating M
Page 53 and 54: FIGURE 63. Silicon replicas used to
Page 55 and 56: Brittle Failure Chevron Marking Cha
Page 57 and 58: PART 6: TEMPERATURE INDICATING MATE
Page 59 and 60: Temperature indicating sticks were
Page 61 and 62: Levels of Charlie Chong/ Fion Zhang
Page 63 and 64: 6.2 Certification of Temperature In
Page 65 and 66: 6.3 Applications for Temperature In
Page 67 and 68: 6.3.2 Verifying Oven Temperatures T
Page 69 and 70: 6.3.4 Process Control Applications
Page 71 and 72: 6.3.6 Precise Post forming Heat Con
Page 73 and 74: Another example of handforrning is
Page 75 and 76: 6.3.7 Pipeline Coatings Epoxy powde
Page 77 and 78: The most common use for temperature
Page 79 and 80: FIGURE 67. Temperature indicating s
Page 81 and 82: PART 7: CHEMICAL AIDS 7.0 General T
Page 83 and 84: 7.1 Test Object Selection Figure 68
Page 85 and 86:
7.2 Surface Preparation Preparation
Page 87 and 88:
7.2.2 Removing Rust and Scale Rust
Page 89 and 90:
If the required finish cannot be ac
Page 91 and 92:
FIGURE 70. Example of contrast reve
Page 93 and 94:
7.3.2 Safety Precautions Etchants a
Page 95 and 96:
Etchant Safety Charlie Chong/ Fion
Page 97 and 98:
Etchant Safety Charlie Chong/ Fion
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7.3.3 Containers Containers used wi
Page 101 and 102:
1. add the acid or alkali to the wa
Page 103 and 104:
7.3.6 Disposal Before disposing of
Page 105 and 106:
7.4.2 Swabbing Etching may also be
Page 107 and 108:
7.4.4 Test Object Preservation Rins
Page 109 and 110:
7.5 Conclusion Visual testing is pe
Page 111 and 112:
Cellulose Replica Sheets Charlie Ch
Page 113:
Charlie Chong/ Fion Zhang
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ASNT Level III- Visual & Optical Testing

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