Alloy and Method for Selecting a Suitable Alloy for Repairing a Bearing Raceway

An alloy comprising:

• a carbon, wherein the carbon is between 0.55 and 0.80 percent by weight of the alloy;
• a manganese, wherein the manganese is between 0.05 and 1.50 percent by weight of the alloy;
• a silicon, wherein the silicon is between 0.05 and 1.20 percent by weight of the alloy;
• a chromium, wherein the chromium is between 0.05 and 2 percent by weight of the alloy;
• a nickel, wherein the nickel is between 1 and 7 percent by weight of the alloy;
• a molybdenum, wherein the molybdenum is between 0.05 and 1 percent by weight of the alloy;
• and
• a vanadium, wherein the vanadium is between 0 and 0.3 percent by weight of the alloy.

A method of repairing a bearing raceway, the method comprising the following steps:

• cleaning the bearing raceway and determining how much of a material will need to be removed from the bearing raceway;
• removing the material from the bearing raceway to a substrate diameter;
• applying a cladding layer to the substrate diameter such that a new diameter of the bearing raceway is larger than an original diameter of the bearing raceway;
• selecting an alloy by:
• calculating a martensite start temperature of the alloy;
• determining if the martensite start temperature is less than 200° C.;
• calculating a retained austenite of the alloy;
• calculating a microhardness of a martensite;
• calculating a microhardness of the retained austenite;
• calculate a composite microhardness of the alloy;
• and
• determining whether the composite microhardness corresponds to a hardness of at least 59 HRC for a single pass of the cladding layer;
• applying the alloy to the substrate diameter if the hardness is at least 59 HRC for the single pass of the cladding layer;
• and
• removing an amount of the cladding layer until the bearing raceway is restored to the original diameter.