| 摘要 |
PURPOSE:To enlarge the tolerance for Fe and C contents and to improve wear resistance and corrosion resistance by increasing Cr content, combinedly adding specific amounts of B, Si, Ni, and Nb, and mixing a boride phase into an amorphous phase. CONSTITUTION:A wear resistant alloy powder has a composition consisting of, by weight, <=0.06% C, <=1.2% Mn, 3-4% Si, 3-4% B, 20-35% Cr, 2-3% Mo, 2-3% Nb, <=2% Fe, <=0.006% oxygen, <=0.006% nitrogen, and the balance essentially Ni, and further, a boride phase is mixed into an amorphous phase, by which a highly corrosion- and wear-resistant alloy powder can be obtained even if Cr content is increased. By plasma-spraying this wear resistant alloy powder on a base material under reduced pressure, a wear resistant member can be obtained. This member can be suitably applied to non-magnetic corrosion- and wear-resistant members applied to equipment operating in a magnetic field in high-temp. and high-pressure water and parts for plastic molding machine, concrete pump, etc. |
