Week 11(Continue Research)

Comparison Benefit/Advantages between all NDT

Due to limited information from my project, I continue doing my research my the benefit and advantages of using all NDT to apply on industrial sector on Malaysia , I use Mendeley and google scholar as my platform to find thesis .

Here is my data I write in table form:

NDT Technique	Advantages	Disadvantages
Magnetic Particle	Inexpensive §  High detection level §  Less equipment required	§  Required high skill §  Required good alignment between subject.
Visual Review	§  Fast result §  Minimum preparation required §  Less skill required	§  Only for surface §  Detect only larger defects
Radiography	§  High detection level §  Minimum material required §  Accurate result	§  Risky §  Unstable detection level
Penetrant Testing	§  Very sensitive §  Able detects minor flaws §  No power supply needed §  Less skill required	§  Detect flaws only on open surface. §  Time consuming on preparation. §  Require a lot of time waiting for results.
Ultrasonic sensor	§  Costless §  Compact §  Quick Result	§  Required high skill §  Sensitive to sound beam
Eddy current	§  Detects both surface and sub-surface detects. §  Widely used for defect detection §  Fast and reliable §  Wide range of frequency usage	§  Require a lot of skill and training §  Limited penetration depth §  Suffers lift-off effects