Patents Represented by Attorney Reising, Ethington, Barnes, Kisselle, PlC.
  • Patent number: 6916444
    Abstract: This invention related to a novel iron base alloy using residual austenite to improve wear resistance for valve seat insert material for internal combustion engines. The residual austenite is stable even after heat treatment and liquid nitrogen chilling. The alloy comprises of 2.0-4.0 wt % carbon, 1.0-3.0 wt % silicon, 0-4.0 wt % manganese, 3.0-9.0 wt % chromium, 5.0-15.0 wt % molybdenum, 3.0-15.0 wt % nickel, 0-6.0 wt % vanadium, 0-4.0 wt % niobium, 0-6.0 wt % cobalt, and the balance being iron with impurities.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: July 12, 2005
    Assignee: Alloy Technology Solutions, Inc.
    Inventor: Xuecheng Liang