Corrosion-resistant structure comprising a metallic surface and an amorphous alloys surface bonded thereupon

摘要

A corrosion-resistant amorphous surface alloy is disclosed which is 150 mu m or less thick and bonded onto a substrate crystalline metal or alloy and processed by irradiation of high energy density beam, such alloy being composed of 8-19 at% Cr, 17-22 at% in the sum of P and 2-7 at% B, and the remainder being Ni, Ni-Co containing Co in an atomic ratio of Co/Ni of 2/3 or less, or Ni-Fe or Ni-Co-Fe containing Fe in an atomic ratio of Fe/Ni or Fe/Ni+Co of 1/5 or less. Also disclosed is a process for producing such alloy.