1. Inspection by residual stress monitoring method:
Spots that have a high concentration level of residual stress (about the yield stress) are areas that have the potential to produce flaws like small cracks, corrosion, and ultimately failure. Therefore, the identification of spots and areas of accumulation of residual stress is a preventive method for identify defects that will have important applications in the construction and periodic inspections in the aviation Industries, shipbuilding and offshore structures, power plants and railways industries.

Applications:
• Railway Industries
• Bridges
• Oil, gas and water pipelines buried or non-buried
• Power plant industries
• Marine industries
• Metal structures in various industries, such as road and building construction

Special equipment for stress concentration measurement, measures the changes in magnetic flux caused by changes in the amount of residual stress in the material. This method has the ISO 24497 standard.
2. Check stress relieving performance:
Comparison of the residual stress before and after heat treatment (PWHT) and the evaluation of the applied heat treatment efficiency
3. Determination of components and structures Lifetime:
By employing the ESME machine and using particular software, it is possible to determine the life of the components and structures regarding fatigue, which is one of the key factors in their lifespan.
fundamentals of the MMM method:
The inverse magnetostrictive effect (Villary effect) is a change of the magnetization (magnetic susceptibility) of a material when subjected to a mechanical stress. The magneto plasticity is an effect of self-magnetization increase in the local zones of anomaly plastic strain.