General Electric Company

Joseph Carl Wukusick

Bernard Patrick Bewlay

Thomas Joseph Kelly

Brian Ellis

Michael James Weimer

Stephen Francis Rutkowski

Mohamed Rahmane

Michael Francis Xavier Gigliotti

Murray Sawyer Smith, Jr

Roger Johnson Perkins, Deceased

Brian Michael Ellis

Crucibles for melting titanium alloys having a facecoat including at least one facecoat layer containing an oxide selected from scandium oxide, yttrium oxide, hafnium oxide, a lanthanide series oxide, and combinations thereof, and a backing including at least one backing layer where the crucible has a backing to facecoat thickness ratio of from about 6.5:1 to about 20:1.

Crucibles for melting titanium alloys

A hard facing alloy is applied to a surface of a substrate by making a mixture of at least two constituents whose net composition is the desired hard facing alloy composition. The constituents have different solidus temperatures, at least one of which is above a processing temperature of the substrate and another of which is below the processing temperature of the substrate. In one preferred approach, the mixture is prepared by pressing and lightly sintering the constituents in the form of powders, so that the mixture retains its shape and can be attached to the substrate surface. Then the substrate is heated to the processing temperature and maintained for a time sufficient to permit interdiffusion of the several different phases toward a homogeneous hard facing alloy composition uniformly through a major portion of the volume.

Process for hard facing a substrate

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Loveland, OH, United States of America

Joseph Carl Wukusick