The magnetic relaxation DELTAr/r, the perminvar critical field H(CR),
the initial susceptibility, chi10, the coercive field H(C) as a functi
on of annealing temperature in Fe73.5Cu1Nb2.95-Sb0.05Si13.5B9 and Fe73
.5Cu1W3Si13.5B9 alloys were investigated. DSC measurements and thermom
agnetic analyses were also done. The results using random anisotropy m
odel can be explained.