Mossbauer spectra of hydrided amorphous alloys Fe90-xCoxZr10(Ax)
Fe90-yCryZr10(By) (x=4
10
20;v=0
4
7
13
16
20) and Fe-Cr-(Si
B) have been measured. For low hydriding time values
the average hyperfine field Bhf and isomer shift δis show a drastic increase which can mainly be related with the volume effect. For higher t values
an electron transfer effect can be responsible for the hyperfine parameter variation. The influence of hy-drogenation on magnetic anisotropy is also discussed.