Abstract
Nondestructive methods for measurement and evaluation of fatigue damage in austenitic stainless steel 316NG, and ferritic steel SCM420 have been investigated. The ICFPD (Induced Current Focusing Potential Drop) method is useful to quantitatively estimate the micro crack initiation-growth and fatigue damage. In order to apply the ICFPD method to in-plant conditions, it is not sufficient to study about sensors or the analysis of properties for fatigue-damaged materials. In this paper the usefulness of ICFPD is examined for complicated structure and in-plant component.
