Abstract: Composite electrical contact composed of a copper base portion clad with a contact portion of Ag-SnO alloy. The contact and base portions are fusion bonded by an interfacial alloy layer of Ag and Cu and an adjacent diffusion layer of Cu as the result of heat-treatment of the contact at the eutectic temperature of Ag and Cu.

Abstract: An article with an improved MCrAlY coating is disclosed wherein a plasma sprayed MCrAlY coating is provided with a metallic envelope and then hot isostatically pressed to densify the coating and interdiffuse the envelope. Thus, the substrate is provided with a coating which in its bulk is the densified plasma coating with an outer surface zone which is enriched in a metal which enhances the oxidation-corrosion protective properties of the coating. Preferred coatings have a standard CoCrAlY bulk with a metal-enriched surface zone of about 0.02 mm depth. When aluminum is added the surface zone is comprised by weight percent of about 60 Co, 20 Cr and 22 Al. With chromium the surface zone is about 50 Co, 43 Cr and 8.5 Al.

Abstract: A process for forming a protective metal diffusion coating on a metal or metal alloy workpiece including internal cavity surfaces, comprises coating the workpiece with a slurry in acetone and cellulose acetate of a powder of average grain size of 0.5.mu. to 10.mu., including aluminum and possibly chromium and/or a small quantity of cerium or yttrium hydride and heating the workpiece in a non-oxidizing environment to dissociate the hydride and effect diffusion of the metals into the surface of the workpiece.

Abstract: To improve the corrosion resistance of a metallic layer which is being burned off by electrodes, and decrease the contact pressure of the electrodes by eliminating metallic residues upon an electrical discharge between an electrode and a metallic surface, the metallic surface layer is a two-metal system having a top layer of aluminum and an intermediate layer of nickel, the metals, upon electrical discharge in air, reacting in an exothermal reaction if the energy level of the electrical discharge between the electrode and the metallic surface is sufficient to initiate the reaction.

Abstract: Roughening effect of low-temperature diffusion aluminizing of age-hardenable stainless steels, is offset by applying a nickel or cobalt plating not over 0.1 mil thick before the aluminizing.

Abstract: A magnetic recording medium wherein a ferromagnetic substance consisting of Fe, Co, Ni or alloy thereof is vacuum evaporated and deposited on a substrate made of a plastic film or a sheet of non-magnetic metal. The thin ferromagnetic film has the columnar crystal structure, and the columnar crystals are coated with a layer of oxide of the ferromagnetic substance.

Abstract: An article of manufacture having improved high temperature oxidation and corrosion resistance comprising: (a) a superalloy substrate containing a carbide reinforcing phase, and (b) a coating consisting of chromium, aluminum, carbon, at least one element selected from iron, cobalt or nickel, and optionally an element selected from yttrium or the rare earth elements.

Abstract: A new and improved magnetic recording disk can be prepared by interposing between an aluminum substrate disk and a recording alloy layer a support layer located on the substrate disk and a shield layer located between the support layer and the recording layer. The support layer is a hard, semi-crystalline nickel alloy layer having magnetic properties which is of such a character that if it is contacted by a recording head during the use of the disk it will tend to form a powder which will not interfere with subsequent use of the disk or recording head. The shield layer is of a nonmagnetic metal and serves to reflect signals from the recording head so that they do not reach the support layer.

Abstract: Light metal surfaces, particularly of aluminium, magnesium, titanium, beryllium and their alloys are pretreated before galvanization electroplating in aqueous solution by applying a layer of a palladium alloy with cobalt and/or iron and/or nickel.

Abstract: A system for providing multi-faceted high speed polygonal scanners is provided which comprises fabricating an aluminum polygonal scanner and thereafter electrolessly plating the scanner with nickel. A preferred specific aluminum alloy is also disclosed in addition to methods of employing these multi-faceted polygonal scanners in flying spot scanning applications.

Abstract: A composite bearing composed of a bearing alloy consisting of 2-8% Zn, 2-8% Si, 0.1-3% Cu, and 0.1-3% Pb all by weight with the remainder being aluminum and a steel backing lined with said bearing alloy. This bearing alloy has outstanding non-sticking property and fatigue strength and is best suited for medium and high speed diesel engine bearings. This bearing alloy may further contain 0.2-7% in total of one or more elements selected from the group consisting of Mg, Ni, and Bi with their respective composition limits being 0.1-2%, 0.1-3% and 0.1-2% by weight.

Abstract: A new clad metal product free from orange peel effect is provided consisting of a core having at least one layer each of copper and of aluminum coated aluminum alloy and at least one outer cladding layer of stainless steel on the layer of aluminum coated aluminum alloy.

Abstract: The thin film magnetic medium of a magnetic disc, and the read/record head employed with the disc are both protected from abusive use and physical damage as well as chemical damage (including damage due to heat and/or humidity) by a polysilicate layer, formed upon the magnetic medium. Inexpensive methods of forming the protective film (which methods lend themselves to mass production) are described. These methods are a small fraction of the cost of present day techniques.

Abstract: The contact element is produced by ultrasonic welding one or more contact pieces onto a carrier, an intermediate layer in the form of a metal powder, for example aluminium, being interposed between the contact piece and the carrier prior to such welding in order to assist in the welding of contact pieces made of material which would otherwise be difficult to weld.

Abstract: A plated aluminum product, and the method of making such product is disclosed for use in automotive bumpers. A plated outer decorative coating is used and is preferably constituted of chromium (0.000005-0.00005" thick) on nickel (0.0003-0.003" thick). An electroplated pretreatment system is employed between the outer decorative coating and aluminum alloy and consists essentially of at least a brass strike containing, for purposes of increased lateral corrosion resistance, an as-deposited copper content in the range of 60-75% by weight, and the aluminum substrate should preferably be restricted to a zinc content of 4.5-5.5%. The pretreatment system may be expanded to include a copper layer encased in two layers of brass, a first layer most adjacent the aluminum substrate containing said 60-75% copper and a second brass layer most adjacent the decorative coating containing 50-60% copper.

Abstract: A plated aluminum product, and the method of making such product is disclosed for use in automotive bumpers. A plated outer decorative coating is used and is preferably constituted of chromium (0.000005-0.00005" thick) on nickel (0.0003-0.003" thick.) An electroplated pretreatment system is employed between the outer decorative coating and aluminum alloy and consists essentially of at least a brass strike containing, for purposes of increased lateral corrosion resistance, an as-deposited copper content in the range of 60-75% by weight, and the aluminum substrate should preferably be restricted to a zinc content of 4.5-5.5%.The pretreatment system may be expanded to include a copper layer encased in two layers of brass, a first layer most adjacent the aluminum substrate containing said 60-75% copper and a second brass layer most adjacent the decorative coating containing 50-60% copper.

Abstract: A method of and composition for preventing the deposition of a coating on a predetermined portion of a substrate is provided, said method including the principle step of applying a maskant composition to said predetermined portion prior to coating. The composition includes a reduceable material capable of reacting with and being reduced by said coating; an inhibitor for controlling the reaction between the coating and the reduceable material; and a resinous binder vehicle in which the reduceable material and the inhibitor are suspended.

Abstract: A metallic article is provided with improved resistance to high temperature environmental conditions, particularly hot corrosion resistance, through the interdiffusion with the article substrate of a complex graded coating including an inner portion which includes Cr and at least one of the elements Fe, Co and Ni and an outer portion including Al and at least one element selected from Hf, Pt, Rh and Pd.

Abstract: This invention relates to space vehicles. It is concerned with solar absorbers consisting of a metallic or metallized substrate with a weak hemispherical emission factor coated with two layers consisting of a semi-transparent metallic layer adhering to the substrate and of an outer interference dielectric layer. The metallic layer is a layer of nickel/chromium alloy consisting of 60 to 83% by weight of nickel and of 40 to 15% by weight of chromium, and the dielectric layer is a layer of silicon monoxide, of zinc sulphide or silicon dioxide.

Abstract: An article of manufacture having improved high temperature oxidation and corrosion resistance comprising: (a) a superalloy substrate containing a carbide reinforcing phase, and (b) a coating consisting of chromium, aluminum, carbon, at least one element selected from iron, cobalt or nickel, and optionally an element selected from yttrium or the rare earth elements.

Abstract: A baseball bat made of a light alloy having on its surface a plating of heat hardened nickel-phosphorus or nickel-boron alloy.

Abstract: A new clad metal product is provided consisting of a core having at least one layer each of copper and of aluminum and at least one outer cladding layer of stainless steel on the layer of aluminum.

Abstract: A high temperature oxidation resistant dispersion strengthened nickel-chromium alloy body is described. The alloy body comprises a first coating of metallic cobalt and a second coating of aluminum.

Abstract: A high temperature oxidation and corrosion resistant coated nickel-base superalloy article comprising (a) a nickel-base superalloy article, and (b) a first CoCrAl(Y) coating composition consisting essentially of, on a weight basis, approximately 26-32% chromium, 3-9% aluminum, 0-1% yttrium, the rare earth elements, platinum or rhodium, and the balance nickel.

Abstract: A flame sprayed high energy milled powder coated article comprising a superalloy substrate and a coating consisting of chromium and at least one element selected from iron, cobalt or nickel. Optionally the coating can contain other elements, e.g., aluminum, carbon, yttrium or the rare earth elements.

Abstract: Composite calcium materials to be used for welding or refining steel, nickel, nickel alloy or iron alloy, which are produced by cladding a sheath of aluminum, iron or alloys thereof and a core consisting of1. a mixture or an alloy of calcium or an alloy thereof with at least one element of aluminum and rare earth metals,2. a mixture of calcium or an alloy thereof with a flux of silicates, oxides or halides of alkaline earth metals, or3. a mixture consisting of the above described mixture or alloy (1) with the flux as described in the above item (2).

Abstract: A method of plating a metallic substrate by coating said substrate with a specific metallic system; plating at least one metal onto the coating; and heating the coated and plated metallic substrate to a temperature that effects a bonding of said metallic substrate to said coating and the plated metal. The method is utilized to plate metals onto metal substrates; including substrates such as aluminum and zinc.

Abstract: An article having an outer surface and an inner cavity, such as a hole or channel with a metallic inner surface, is provided with an inner metallic coating on the inner surface and, in one form, an outer metallic coating on the outer surface. The inner coating is provided as a result of decomposition and subsequent thermal homogenization of one or more organic compounds including Al, Cr or Ni or alloys including one or more of those elements. The outer coating can be the same as the inner coating or can be a metallic coating of one of a variety of known metallic coatings.

Abstract: The invention relates to a method of forming a high temperature oxidation resistant coating on a nickel-chromium alloy body. The method includes incorporating into a nickel-chromium alloy a sufficient amount of cobalt to effect a change in coating morphology when the alloy is aluminized; and thereafter subjecting the body to a coating of aluminum.

Abstract: A protective coating system is provided for nickel-base and cobalt-base superalloys which is capable of imparting oxidation and corrosion resistance at elevated temperatures. The superalloy body is first coated by physical vapor deposition with a composition consisting essentially of chromium, aluminum, a member selected from the group consisting of yttrium and the rare earth elements, and at least one element selected from the group consisting of iron, cobalt and nickel, and thereafter the body is subjected to an aluminizing overcoating to increase the corrosion resistance.

Abstract: A magnetic recording media is manufactured by depositing a nonmagnetic cobalt base alloy onto a substrate preferably aluminum as a protective layer for the substrate. The cobalt alloy includes chromium, tungsten, and nickel. The clad protective layer can be deposited in several steps with or without a polishing between the deposition steps to provide better corrosion protection for the substrate and covers surface imperfections of the substrate. The cobalt alloy is preferably sputtered onto the prepared substrate.

Abstract: The energy absorbing properties of solar heating panels are improved by depositing a black chrome coating of controlled thickness on a specially prepared surface of a metal substrate. The surface is prepared by depositing a dull nickel on the substrate, and the black chrome is plated on this low emittance surface to a thickness between 0.5 micron and 2.5 microns.

Abstract: A coating system which contains a bond coating and a thermal barrier coating is applied to metal surfaces such as turbine blades and which provides both low thermal conductivity and improved adherence when exposed to high temperature gases or liquids. The bond coating contains NiCrAlY and the thermal barrier coating contains a reflective oxide. The reflective oxides ZrO.sub.2 --Y.sub.2 O.sub.3 and ZrO.sub.2 --MgO have demonstrated significant utility in high temperature turbine applications.

Abstract: In the process of forming a coating selected from nickel and cobalt-based atings on a surface of a component made of a metallic material having a total composition by weight comprising at least 50% of metal selected from the group consisting of iron, cobalt and nickel, the improvement comprising forming at least one layer of an alloy of boron with one of nickel, cobalt and nickel/cobalt on the component, after which the boron is eliminated.

Abstract: An alloy of nickel and aluminum, which also may contain varying percentages of intermetallics, in the form of a wire or rod is sprayed in an electric arc spray gun to form a self-bonding coating on a smooth, clean substrate. Alternatively an alloy of nickel and titanium, which also may contain varying percentages of intermetallics, in the form of a wire may be similarly electric arc sprayed to effect a self-bonding coating on a substrate. The nickel aluminum alloy and possibly intermetallics or the nickel titanium alloy and possibly intermetallics are supplied as a wire feed to the electric arc spray gun, and when heated in the electric arc of the spray gun and sprayed onto a substrate will form a coating that has a high degree of tenacity to many metal substrates and also has a moderate degree of hardness, low R.sub.c, high R.sub.b. The self-bonding is attributed to the formation of superheated liquid in the arc process and the affinity of that superheated liquid to iron, nickel, aluminum, etc.