Nondestructive flaw detection profile

What is called nondestructive flaw detection?

Nondestructive testing  for short is NDT,under condition of no damage to material,inspect inside flaw or surface flaw of material, or test some physical quantity .properties ,organization conditions of material. Widely used for metal material.nonmetal material /compound material.

Nondestructive testing methods can be divided into six categories about 70 kinds

But in practical application ,more common to see are:

UltrasonicTesting（abbreviation is UT）；

RadiographicTesting（abbreviation is RT）；

MagneticparticleTesting（abbreviation is MT）；

PenetrantTesting（abbreviation is PT）；

EddycurrentTesting（abbreviation is ET）

Irregular nondestructive testing technique are:

AcousticEmission(abbreviation is AE)；

LeakTesting（abbreviation is UT）；

OpticalHolography；                      

InfraredThermography；

MicrowaveTesting 

What kind of applications does NDT has

Application :design stage; producing process:product detection,in service detection

Applicable targets :every material;every workpiece, every project

Normally used flaw detection methods are:X ray flaw detection,ultrasonic flaw detection ,magnetic powder flaw detection, penetration flaw detection ,eddy current flaw detection,γ ray flaw detection,fluorescent flaw detection,   dye penetrant inspection 。physical flaw detection is do nondestructive flaw detection under condition of not generating chemical change