Electromagnetic characterization of the depth of surface-hardening in steel
The four‐point alternating current potential drop (ACPD) method has the potential to evaluate different depths of case hardening in steel. The potential drop was measured on a series of induction‐hardened and carburized steel rod samples. It was shown that four‐point ACPD is a promising technique for distinguishing between different depths of case hardening. Especially in the low‐frequency range of the real part of the normalized impedance, there is very good distinction between different case depths of the samples.
Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
This article appeared in AIP Conference Proceedings, 1096 (2009): 1333–1340 and may be found at: http://dx.doi.org/10.1063/1.3114111.