We present a statistical fragmentation study of doubly charged iron an
d aluminum clusters of less than 60 atoms. At low excitation energies
we find that the evaporation of one charged monomer is the most probab
le decay channel (asymmetric fission). When the excitation energy incr
eases there is a competition between evaporation of a charged monomer
and a charged dimer. For higher energies the number of channels increa
ses and the multifragmentation mode appears at about 2.5 eV/atom.