Barkhausen noise and its utilization in structural analysis of ferromagnetic materials (Review article V) 5. Effects of volume and surface thermal processing

The effects of both volume and surface thermal processing on the parameters of Barkhausen jumps, which are determined by the configuration of a magnetic structure and processes of irreversible displacement of domain boundaries is discussed. Structural changes in steels due to their thermal processing affect the parameters of Barkhausen jumps, which enables utilization of the Barkhausen noise in nondestructive testing of structural states in the steels. Specific examples of applications of this method and instruments for testing the quality of volume and surface thermal processing are given.

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