Certification of hardened surface layers by magnetic and electromagnetic methods

The possibilities of certification of hardened surface layers by measurement of coercive force, eddy current inspection and analysis of the field dependence of differential magnetic permeability μ d (H) are considered. The advantages of analysis of the pattern of peaks on the μ d (H) dependence for estimating the state of surface-hardened steels subjected to subsequent force loading are shown. © 2013 Springer Science+Business Media New York

Effect of tensile deformation on austenitic Cr-Ni-steel structure and magnetic properties

Deformation metastability of chromium-nickel steels of austenitic and austenitic-ferritic classes is studied directly during specimen extension in a magnetic measurement facility. Structural changes and their correlation with steel magnetic properties are analyzed. © 2013 Springer Science+Business Media New York