Kennametal Inc.

Deloro Stellite Holdings Corporation

Deloro Stellite Company, Inc.

James B. C. Wu

Abdelhakim Belhadjhamida

Joseph Overton

James B C Wu

Matthew Yao

David A Lee

Bradley McKee

Kevin Luer

Heidi Lynette De Villiers-Lovelock

Danie Jacobus Dewet

Thomas Swingley

Roderick Webber

Volker Hellinger

Ian Purvis

Rodrick Webber

Damadoran Raghu

Matthew X Yao

A material blend for deposition of an abrasion-resistant overlay onto a metal substrate comprising a first metal particle component, a second metal particle component, and a carbide particle component and a method for the application thereof, wherein the overlay process conditions and the homogeneity of tungsten carbide distribution in the overlay are improved.

Abrasion-resistant weld overlay

A multilayer, wear- and corrosion-resistant coating on a metal substrate comprising a first metal coating layer comprising a composite carbide material; a second metal coating layer over the first metal coating layer comprising at least about 50 wt % of a metal selected from the group consisting of Co, Ni, and Fe; and a surface metal coating layer comprising a cemented carbide material having a third-layer carbide material and a third-layer Co-based or Ni-based binder material.

Spallation-resistant multilayer thermal spray metal coatings

A wear- and corrosion-resistant alloy, and related application method, where the alloy has by approximate weight %, C 0.12-0.7, Cr 20-30, Mo 7-15, Ni 1-4, and Co balance, wherein the alloy further contains one or more carbide-former elements from the group consisting of Ti, Zr, Hf, V, Nb, and Ta in a cumulative concentration to stoichiometrically offset between about 30% and about 90% of the C in the alloy.

Weldable, crack-resistant co-based alloy, overlay method, and components

A method of imparting high-temperature, degradation resistance to a metallic component involving applying a metal slurry comprising a Co-based metallic composition containing Co, Cr, Mo, Si, and B, a binder, and a solvent to a surface of the component, and sintering the Co-based metallic composition to form a substantially continuous Co-based alloy coating on the surface of the body.

Imparting high-temperature degradation resistance to metallic components

A wear- and corrosion-resistance coating over a metal substrate having a first-layer carbide material, a second metal coating layer over the first metal coating layer, and a surface metal coating layer over the second metal coating layer; and thermal spray method for applying the coating.

A method for imparting wear- and corrosion-resistance to a metal component comprising overlaying the component with a ductile Co-based alloy comprising between about 0.12 wt % and about 0.7 wt % C, between about 20 wt % and about 30 wt % Cr, between about 10 wt % and about 15 wt % Mo, between about 1 wt % and about 4 wt % Ni, and balance of Co, without forming cracks during the alloy's solidification.

Weldable, crack-resistant Co-based alloy and overlay

A method of imparting high-temperature, degradation resistance to a component associated with an internal combustion engine involving applying a metal slurry comprising a Co-based metallic composition, a binder, and a solvent to a surface of the component, and sintering the Co-based metallic composition to form a substantially continuous Co-based alloy coating on the surface of the body. An internal combustion engine component comprising a metallic substrate and a Co-based metallic coating thereon which has a thickness between about 100 and about 1000 microns.

Imparting high-temperature degradation resistance to components for internal combustion engine systems

A Co&#x2014;Mo&#x2014;Cr Co-based alloy and overlay for wear and corrosion applications. The Mo:Si ratio is between about 15:1 and about 22:1 for enhanced ductility with a Laves phase.

Ductile cobalt-based Laves phase alloys

Enhancing wear and corrosion resistance of an industrial component by depositing a Ni-based alloy coating having a thickness of at least about 50 microns onto a surface of the industrial component by high velocity oxyfuel propulsion of a Ni-based alloy powder containing a) Cr, b) from about 15 to about 25 wt % Mo, c) no more than about 1 wt % Fe, and d) no more than about 1 wt % elements having an atomic number greater than 42. A Ni-based alloy powder for HVOF deposition containing a) Cr, b) from about 15 to about 25 wt % Mo, c) no more than about 1 wt % Fe, and d) no more than about 1 wt % elements having an atomic number greater than 42. A Ni-based coating on an industrial component having enhanced corrosion and wear resistance.

Wear-resistant, corrosion-resistant Ni-Cr-Mo thermal spray powder and method

A Co-based alloy comprising 13-16 wt % Cr, 20-30 wt % Mo, 2.2-3.2 wt % Si, and balance Co, with a Cr:Si ratio of between about 4.5 and about 7.5, a Mo:Si ratio of between about 9 and about 15, wear resistance, and corrosion resistance in both oxidizing and reducing acids.

Wear-resistant, corrosion-resistant cobalt-based alloys

Co-based cutting tool insert alloys having a wrought microstructure and 3-15% Mo, 25-35% Cr, 0.5-2.5% C. The presence of W is avoided, and held below 1%. The alloys have enhanced resistance to abrasive and corrosive attack, and are especially suited for manufacturing router bits, router cutters, shaper cutters, molder cutters, etc. for cutting wood in secondary cutting operations such as furniture making or other cutting inserts such as inserts for cutting optical fibers.

Cobalt-based industrial cutting tool inserts and alloys therefor

A Co-based saw tip for attachment to saw blades for cutting wood, the saw tip formed from an alloy containing Mo in an amount from about 4 to about 20% by weight, Cr, C, and the balance Co. Certain embodiments specifically avoid all W. The tip optionally further contains elements selected from the group consisting of Mn, Si, Ni, B and Fe.

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St. Louis, MO, United States of America

James B C Wu