Review of magnetoacoustic residual stress measurement technique for iron-like ferromagnetic alloysIt is shown that the elastic moduli of ironlike ferromagnetics depends explicitly on the state of 90 deg domain walls: the more 90 deg domain wall area available, the lower the elastic modulus. New experimental results obtained for three types of carbon and pure iron samples are presented. The magnetoacoustic response due to magnetization perpendicular to the uniaxial stress axis is considered as well as the magnetoacoustic response due to magnetization parallel to the uniaxial stress axis.
Document ID
19890044948
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Namkung, M. (NASA Langley Research Center Hampton, VA, United States)
Utrata, D. (NASA Langley Research Center Hampton, VA, United States)
Langlois, P. (NASA Langley Research Center Hampton, VA, United States)
Kushnick, P. W. (NASA Langley Research Center Hampton, VA, United States)
Grainger, J. L. (NASA Langley Research Center Hampton, VA, United States)