Surface Engineered Products Corporation

Bodycote Metallurgical Coatings Limited

Manoir Industries, Inc.

Alexander S Gorodetsky

Konstantin K Tzatzov

Andrew George Wysiekierski

Yan Chen

Edward John Redmond

Hang Zheng

Chinnia Gounder Subramanian

Gary Anthony Fisher

David Aaron Easton

A method of providing a protective, corrosion-resistant thin coating of a MCrX alloy on a carbon or low-alloy steel pipe or tube where M is one of nickel, cobalt or iron or combination thereof and X is one of molybdenum, silicon, tungsten or combination thereof, and heat treating the coating to metallurgically bond the coating onto a steel substrate of the pipe or tube. The coating may be deposited in one or two layers by plasma transferred arc deposition or may be deposited as a slurry coating or thermal spray coating with sintering of the coating. The steel substrate is prepared for coating by at least one of boring, honing, bright finishing, grit blasting, grinding, chemical pickling or electro-polishing of the substrate.

Corrosion-resistant coatings for steel tubes

A method for protecting low-carbon steel and stainless steel from coking and corrosion at elevated temperatures in corrosive environments, such as during ethylene production by pyrolysis of hydrocarbons or the reduction of oxide ores, by coating the stainless steel with a coating of MCrAlXSiT in which M is nickel, cobalt, iron or a mixture thereof, X is yttrium, hafnium, zirconium, lanthanum, scandium or combination thereof, and T is tantalum, titanium, platinum, palladium, rhenium, molybdenum, tungsten, niobium, boron or combination thereof. A blended powder composition to produce a desired MCrAlXSiT surface alloy may be applied to the substrate. The overlay coating and stainless steel substrate preferably are heat-treated at about 1000 to 1200&deg; C. for about 10 minutes or longer effective to metallurgically bond the overlay coating to the substrate and to form a multiphased microstructure.

Protective system for high temperature metal alloy products

A cathode assembly for magnetron sputtering of a workpiece, and sputtering apparatus and methods of sputtering using same are provided. The cathode assembly includes a tubular cathode, which may be cylindrical in cross section along its length, or which may be curved or flexible, depending on the shape of workpiece that is to be sputtered, and which has a sputtering length of L . The cathode assembly also includes a magnet package, or a plurality of spaced magnet packages, each magnet package including either one magnet or a plurality of spaced magnets of alternating polarity, and having a magnet package length L which is less than L . The cathode assembly further includes one or more means for positioning, and preventing radial displacement of, the cathode along the axis of symmetry of the cathode. The magnet package is held within the cathode such that a driving force applied to the magnet package or to the cathode, or to both independently, imparts relative longitudinal movement between the magnet package and the cathode. The cathode assembly preferably includes cooling means. Furthermore, the magnet package(s) is preferably held within the cathode for shuttle movement. The cathode assembly allows for variations of one or more of the magnet package length, number, and spacing, and the relative displacement distance or shuttle distance, in order to tailor the erosion profile along the axis of symmetry of the cathode.

Method and apparatus for magnetron sputtering

Growing community of inventors

Sherwood Park, Canada

Alexander S Gorodetsky