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Md. Ashiqur Rahman Alif

Engineer | Researcher | Problem-Solver

NON DESTRUCTIVE TESTING DIVISION, ATOMIC ENERGY CENTRE


January 22, 2023

Non-Destructive Testing
Non-destructive testing is a known non-invasive technique that is used to assess the physical integrity or assure the quality of a material in terms of flaws,discontinuities, or defect detection.

Five NDT were performed in the Atomic Energy Center:

     i.         Dye-penetrant Test (PT) 
   ii.          Magnetic particle Test (MT) 
 iii.           Ultrasonic Test (UT) 
 iv.            Eddy current Test (ET) 
   v.           Radiographic Test (RT) 
Objective:

 
    i.           Detection of surface defect
 
   ii.            Assessment of surface defect
 
 iii.             Evaluation of surface defect
 

 Applications of NDT

 
     i.                   Detection of flaw and Evolution
 
    ii.                   Determination of location and size of flaw
 
   iii.                   Leak Detection
 
   iv.                   Dimension verification of components
 
    v.                   Structure and micro structure characterization
 
   vi.                   Estimation of mechanical and physical properties
 
 vii.                   Stress and dynamic response measurement
 
 viii.                   Material sorting and chemical composition determination
 
   ix.                   Assessment of strength of materials
 
    x.                   Quality control
 

Advantages of NDT


    i.           It is reliable 

   ii.           It offers reassurance
 
 iii.           It is cheap
 
 iv.           Immediate result can be found
 
   v.           Destruction of material is not needed
 
 vi.           Fast preparation
 
vii.           3D data acquiring
 
viii.           High accuracy
 
 ix.           Very sensitive
 
   x.           Easy to perform
 
 xi.           Independent of weather conditions
 

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