Mechanical Properties of a Laser-Modified Amorphous Fe–Ni–B Alloy

The morphological features of changes in the surface layers of melt-quenched ribbons of an Fe 53.3 Ni 26.5 B 20.2 amorphous alloy are studied as functions of the nanopulsed laser treatment intensity. The behavior of the mechanical properties of the alloy (hardness, elastic modulus, elastic recovery parameter of indentation under indenter) is investigated by depth-sensing indentation along the radius of a circular laser irradiation zone at various numbers of pulses. Effective laser irradiation parameters, which promote an increase in the mechanical properties of the surface layer of the amorphous Fe 53.3 Ni 26.5 B 20.2 alloy, are found.