Basics
Diamagnetic, Paramagnetic, and Ferromagnetic Materials
When a material is placed within a magnetic field, the magnetic forces of the material’s electrons will be…
August 24, 2021 · Prabhu TLBasics
Basics
Magnetization of Ferromagnetic Materials
There are a variety of methods that can be used to establish a magnetic field in a component…
August 24, 2021 · Prabhu TLBasics
Principle of Magnetic Particle Testing
Principle of MPT This testing method is called MT (Magnetic Testing) or MPT (Magnetic Particle Testing), and suitable…
August 24, 2021 · Prabhu TLBasics
Non-destructive Testing: Important Terminology
There are many different non-destructive testing techniques recognized by the American Society for Non-destructive Testing (ASNT) including Acoustic…
August 24, 2021 · Prabhu TLBasics
Magnetic Particle Inspection
What is Magnetic Particle Inspection? Magnetic particle inspection (often abbreviated MT or MPI) is a nondestructive inspection method…
August 24, 2021 · Prabhu TLBasics
Ultraviolet and Thermal Stability of Penetrant Indications
Exposure to intense ultraviolet light and elevated temperatures can have a negative effect on fluorescent penetrant indications. Fluorescent…
August 24, 2021 · Prabhu TLBasics
Color and Fluorescent Brightness
Penetrant Color and Fluorescence The color of the penetrant material is of obvious importance in a visible dye…
August 24, 2021 · Prabhu TLBasics
Viscosity
Viscosity describes a fluid’s resistance to flow. Liquids such as water that flow easily, have a lower viscosity…
August 24, 2021 · Prabhu TLBasics
Density or Specific Gravity
The density or specific gravity of a penetrant material has a slight to negligible effect on the performance…
August 24, 2021 · Prabhu TLBasics
Surface Energy (Surface Wetting Capability)
As previously mentioned, one of the important characteristics of a liquid penetrant material is its ability to freely…
August 24, 2021 · Prabhu TL