Some embodiments provide methods of manufacturing a release mechanism, comprising: carburizing a plurality of locking shoes configured to be positioned within a release mechanism intended for use in temperatures that are below 5 C. and cooperatively implemented to withstand forces of at least several hundred thousand pounds, wherein the carburizing comprises exposing the plurality of locking shoes to a carbon-bearing atmosphere and heat treating the plurality of locking shoes while exposed to the carbon-bearing atmosphere; austenitizing the plurality of locking shoes at a temperature of greater than 1400 F. following the carburizing; performing a first tempering the plurality of locking shoes at a first tempering temperature; performing a second tempering of the plurality of locking shoes at a second tempering temperature that is different than the first tempering temperature; and flame hardening one or more surfaces of each of the plurality of locking shoes.

Undercarriage assembly components of track-type machines having a metallurgically bonded wear-resistant coating and methods for forming such coated undercarriage assembly components is disclosed herein. The bodies of the undercarriage assembly components, formed of an iron-based alloy, have a hard metal alloy slurry disposed on a surface or into an undercut or channel and then fused to form a metallurgical bond with the iron-based alloy. The wear-resistant coating comprises a fused, metal alloy comprising at least 60% iron, cobalt, nickel, or alloys thereof. The portion of the outer surface of the undercarriage assembly components having the wear-resistant coating corresponds to a wear surface of the component during operation of the endless track of the track-type vehicle.

The present disclosure refers to a method for manufacturing a track link for a running gear of a tracked vehicle, comprising the following method steps: P1) providing a forging blank of steel, P2) hot forging the forging blank to produce a track link blank and hot trimming of the track link blank to form at least a wheel tread part of the track link blank, P3) quenching the track link blank to a temperature T1, P4) low temperature tempering the track link blank at a temperature of 20050 C., and P5) finish machining the tempered track link blank to produce the final shape of the track link.

Component with a steel part, wherein the steel, among other things, 0.30-0.50 wt. % C, 0.05-1.3 wt. % Mn, 0.001-0.015 wt. % P, 0.001-0.015 wt. % S, 0.01-0.8 wt. % Si, 0.3-1.5 wt. % Cr, 0.005-0.40 wt. % V, 0.0008-0.0050 wt. % B, 0.02-0.35 wt. % Al, 0.0001-0.0200 wt. % N, 0.01-0.08 wt. % Ti, and 0.0030-0.0800 wt. % Zr; comprises the rest iron and unavoidable impurities, wherein the B content in the steel at a depth of 5-60 m is 80% of the B content in the steel at a depth of 500 m.

A track pin for a track chain assembly includes a body made from a steel alloy. The steel alloy has a composition comprising iron, a nitride-forming element, and silicon. The composition of the steel alloy comprises at least 0.5 percent by weight of silicon. The body includes an external nitrided surface.

A track link includes an elongate link body formed of a link body material that varies in hardness to form a first lower hardness zone, a second lower hardness zone, and a higher hardness zone. The higher hardness zone includes an upper rail surface of the elongate link body and extends substantially throughout the elongate link body outside of the first and second lower hardness zones, which surround the track pin bores. Related methodology for making a track link is also disclosed.

A track link includes an elongate link body formed of a link body material that varies in hardness to form a first lower hardness zone, a second lower hardness zone, and a higher hardness zone. The higher hardness zone includes an upper rail surface of the elongate link body and extends substantially throughout the elongate link body outside of the first and second lower hardness zones, which surround the track pin bores. Related methodology for making a track link is also disclosed.

A track link includes an elongate link body formed of a link body material that varies in hardness to form a first lower hardness zone, a second lower hardness zone, and a higher hardness zone. The higher hardness zone includes an upper rail surface of the elongate link body and extends substantially throughout the elongate link body outside of the first and second lower hardness zones, which surround the track pin bores. Related methodology for making a track link is also disclosed.