Back to results
US 6,200,688 B1Granted
Nickel-iron base wear resistant alloy
AssigneeWinsert, Inc.
InventorsXuecheng Liang, Gary R. Strong
Life of this patent
Estimating the term…
Abstract
A wear resistant alloy is provided having a composition by weight of 1.0-2.5 C, 1.5-4.5 Si, 8.0-20.0 Cr, 9.0-20.0 W and/or Mo, 0.5-2.0 Nb, 20.0-40.0 Fe, and the balance being Ni (>25.0). This alloy provides excellent wear resistance and good hot hardness with relatively low cost compared to prior art nickel base alloys. The alloy has particular use as a valve seat insert materials in diesel fuel internal combustion engines.
Claims7
A valve seat insert member fabricated of an alloy consisting essentially of, in weight percent:
- about 1.0 to 2.5 carbon, about 1.5 to 4 .5 silicon, about 8.0 to 20.0 chromium, about 20.0 to 40.0 iron, about 0.5 to 2.0 niobium, about 9.0 to 20.0 selected from the group consisting of molybdenum and tungsten, and the balance nickel in excess of about 25.0.
Dependencies are inferred from the claim text.