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Home Industrial Technologies Ferromagnetic Material Fatigue Monitoring by Non-Destructive Magnetic (Coercive Force Meter) Method

Ferromagnetic Material Fatigue Monitoring by Non-Destructive Magnetic (Coercive Force Meter) Method


Magnetic coercive force meter method of monitoring fatigue state of ferromagnetic steel and cast-iron production and construction. Preferred field of its application – stress concentration zone in which operational fatigue develops and accumulates with advance speed. Displacement of these zones on many productions is well-known because it is logically predetermined by their construction. As dimensions of stress concentration zones in comparison with microflaw dimensions are quite big so they are surely discovered without any searching complexity.

Advantage of the method – in simplicity of measuring process and in a device for its realization. Sample time °10C, monitoring metal doesn’t need special surface preparation, assuming its considerable roughness and curvature, environment temperature doesn’t influence on monitoring, monitoring is possible through paint coat up to 3 mm. The method is realized on the base of application of magnetic strukturoskop-coercive force meters of KRM-C type developed by the firm “Special scientific developments” which were certificated and entered into Russian Federation register. Since1997 state engineering supervision allowed using the method for technical diagnosis of all types of climbing cranes, service elevators and since 2003 for diagnostics of pressurized cylinders.

Innovative Aspect and Main Advantages

The method and device has not analogues. The main advantages of the method – possibility of qualitative and quantative assessment of metal state defining its residual life, simplicity of measuring, fast response, productiveness, reliability and cheapness of its realization.

Areas of Application

Stress concentration zones on production from mild steel and medium carbon steel in plastic state during static and repeating loadings with great amplitudes (i.e. during aggressive and low-cycle fatigue loadings).

Stage of Development

Improvement and modernization of instrument base.

Contact Details

A.N. Podgorny Institute for Mechanical Engineering Problems NAS of Ukraine
Contact person: Dr. of Tech. Sc., Professor Matsevity Vladimir Myhaylovich
Address: 2\10, Pozharsky str., 61046, Kharkiv, Ukraine
Tel.: (+38 0572) 778 8986, (+38 0572) 959 579, (+38 0572) 959 580
Fax: + 38 (0572) 944 635, (+38 0572) 942 744
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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