Components and motors for downhole tools and methods of applying hardfacing to surfaces thereof

  • US 10,077,605 B2
  • Filed: 05/28/2015
  • Issued: 09/18/2018
  • Est. Priority Date: 07/23/2010
  • Status: Active Grant
First Claim
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1. An apparatus for downhole service, comprising:

  • a rotor configured to be rotatably disposed within a stator; and

    a hardfacing precursor disposed over at least a portion of an outer surface of the rotor, the hardfacing precursor comprising;

    a polymeric material;

    a plurality of hard particles dispersed within the polymeric material; and

    a metal formulated to become a matrix material;

    wherein the hardfacing precursor comprises;

    a first hardfacing precursor on at least two adjacent lobes of the rotor; and

    a second hardfacing precursor between the at least two adjacent lobes of the rotor, the second hardfacing precursor having a composition different from the first hardfacing precursor.

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