Structure and tribological properties of electrodeposited Fe-Ni coating treated with nitrogen ions

Abstract

The structural phase state, microhardness, and wear resistance of the Fe 64 Ni 36 electrically depos ited coating treated with nitrogen ions is investigated. It is established that ion beam treatment leads to the formation of a solid solution of nitrogen in the matrix γ phase (γ N ), as well as the (Fe, Ni) 4 N nitrideγ' phase in surface layers of the Fe 64 Ni 36 coating. The microhardness of the surface layer of the Fe 64 Ni 36 coat ing modified by nitrogen ions increases to H 0.24 = 7600 MPa. It is shown that the ion beam treatment of the Fe-Ni coating leads to a substantial decrease in its wear intensity.