General Electric Company

Michael Francis Gigliotti, Jr

Lawrence Bernard Kool

Stephen Francis Rutkowski

Richard DiDomizio

Paul Steven Svec

William Randall Thompson

Anatoli Kogan

David Carr

Brian Stephen Noel

Andrew Philip Woodfield

Eric Allen Ott

Robert S Gilmore

Clifford Earl Shamblen

Alan Glen Turner

David Alan Utah

A slurry coating composition is described, which is very useful for enriching the surface region of a metal-based substrate with aluminum. The composition includes colloidal silica and particles of an aluminum-based powder, and is substantially free of hexavalent chromium. The slurry may include colloidal silica and an alloy of aluminum and silicon. Alternatively, the slurry includes colloidal silica, aluminum or aluminum-silicon, and an organic stabilizer such as glycerol. The slurry exhibits good thermal and chemical stability for extended periods of time, making it very useful for industrial applications. Related methods and articles are also described.

Aluminizing slurry compositions free of hexavalent chromium, and related methods and articles

An article made of constituent elements is prepared by furnishing at least one nonmetallic precursor compound, wherein all of the nonmetallic precursor compounds collectively contain the constituent elements. The constituent elements include a titanium-base metallic composition, boron present at a level greater than its room-temperature solid solubility limit, and, optionally, a stable-oxide-forming additive element present at a level greater than its room-temperature solid solubility limit. The precursor compounds are chemically reduced to produce a material comprising a titanium-base metallic composition having titanium boride particles therein, without melting the titanium-base metallic composition. The titanium-base metallic composition having the titanium boride particles therein is consolidated without melting.

Method for producing a titanium metallic composition having titanium boride particles dispersed therein

A method for determining incipient mechanical failure of an object includes insonifying the object with ultrasonic energy at a selected fundamental frequency. Amplitude data is acquired from the insonified object at the fundamental frequency and at a second harmonic of the fundamental frequency, and a non-linear acoustic image is generated from the amplitude data at the fundamental frequency and the second harmonic frequency.

Inspection method and apparatus for determining incipient mechanical failure

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Scotia, NY, United States of America

Michael Francis Gigliotti, Jr