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Magnetic, eddy-current, and electrical methods. Electromagnetic quality control of carburization of steel products

Journal Article · · Russian Journal of Nondestructive Testing
OSTI ID:56816
We have studied the effect that the casehardening (carburizing) temperature and time, carburizer activity, and variation of the conditions of subsequent heat treatment has on the electromagnetic properties of carburized specimens of 12Kh2N4A steel. The possibilities of nondestructive testing for the main parameters that determine the quality of carburization of 12Kh2N4A steel products, using coercimetric and eddy-current methods, are considered. The optimal depth of penetration of the magnetic flux in the portion of the inspected carburized product for greater inspection reliability is determined. The joint use of coercimetric and eddy-current methods makes it possible to monitor the depth and wear resistance of the carburized case and also to estimate the amount of retained austenite in the layer and reveal the effect of the decarburized surface zone.
OSTI ID:
56816
Journal Information:
Russian Journal of Nondestructive Testing, Journal Name: Russian Journal of Nondestructive Testing Journal Issue: 12 Vol. 29; ISSN RJNTE4; ISSN 1061-8309
Country of Publication:
United States
Language:
English