High entropy alloy repair of nickel and cobalt superalloys
AssigneesPratt & Whitney Canada Corp., Concordia University, The Royal Institution for the Advancement of Learning/Mcgill University
InventorsPayank Patel, Mary E. Makowiec, Joël Larose, Navid Sharifi, Pantcho P. Stoyanov, Christian Moreau, Richard Chromik
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Abstract
A method for repairing damage at a damage site on the surface of a nickel- or cobalt-based alloy. The method includes: machining at the damage site; and applying a high entropy alloy (HEA) repair material to the damage site via high velocity oxy-fuel (HVOF) spray, high velocity air-fuel (HVAF) spray, or cold spray.
Claims22
A method for repairing damage at a damage site on the surface of a nickel- or cobalt-based alloy component, the method comprising:
- machining at the damage site;
- and
- applying a high entropy alloy (HEA) repair material to the damage site via high velocity oxy-fuel (HVOF) spray, high velocity air-fuel (HVAF) spray, or cold spray,
- wherein the repair material comprises in atomic percent:
- 16.0 to 25.0 Fe;
- 16.0 to 25.0 Co;
- 16.0 to 25.0 Cr;
- 16.0 to 25.0 Mn;
- and
- 16.0 to 25.0 Ni.
Dependencies are inferred from the claim text.