DIFFUSION BARRIER LAYER AND METHOD OF MAKING THE SAME, AND WEAR RESISTANT ARTICLE WITH THE DIFFUSION BARRIER LAYER AND METHOD OF MAKING THE SAME

摘要

A wear-resistant article (22 or 24) that includes a substrate (50) that presents a surface. The substrate has a bulk region and a surface region beginning at and extending inward from the surface toward the bulk region. There is a diffusion barrier layer (52) on at least a portion of the surface of the substrate wherein the diffusion barrier layer is a nickel-based alloy. There is a wear-resistant cladding layer (34 or 40) on the diffusion barrier layer wherein the wear-resistant layer contains boron. The surface region of the substrate contains no boron that has been diffused from the wear-resistant cladding layer.