Model samples of iron-based alloys containing two magnetically different ph
ases are used to demonstrate applicability of the Preisach model formalism
for non-destructive testing of ferromagnetic materials. The suggested mater
ial uniformity parameters show their high sensitivity, provide quantitative
relation with the relative volumes of the two phases in the samples and do
not require saturation of the samples in the measurement. (C) 2000 Elsevie
r Science B.V. All rights reserved.