Amorphous phase formation by spray forming of alloys [(Fe0.6Co0.4)0.75B0.2Si0.05]96Nb4 and Fe66B30Nb4 modified with Ti

► Amorphization of [(Fe0.6Co0.4)0.75B0.2Si0.05]96Nb4, Fe65B30Nb4Ti1, Fe63B29Nb4Ti4 alloys. ► Spray forming as the processing technique. ► [(Fe0.6Co0.4)0.75B0.2Si0.05]96Nb4 alloy presented amorphization up to a depth of 4 mm. ► Fe65B30Nb4Ti1 and Fe63B29Nb4Ti4 alloys presented fully crystalline deposits. ► Amorphization by spray forming relies on a high glass forming ability of the alloys.