The effect of boron content and the effect of anisotropy energy on the
magnetic aftereffect (MAE) DELTAr/r, the initial susceptibility chi10
, the perminvar critical field H(cr), the coercive force H(c) in as-qu
enched and annealed (below T(C)) Co100-xBx(17.3 less-than-or-equal-to
x less-than-or-equal-to 30) amorphous alloys is investigated.