Abstract: A method of pretreating a copper surface for protecting the surface from oxidation, by immersing the surface in a solution containing organic solderabilty preservatives, such as BenzoTriAzole, with the addition of a zinc salt. The method is particularly useful in the manufacturing of electronic Printed Circuit Boards for protecting the copper surfaces during the solder processes when the PCB undergoes high temperature. The addition of the zinc salts also gives the additional advantage of increasing the solderabilty properties of the copper surface (i.e. wettability and adhesion).

Abstract: A hydrogen containing material comprises a first compound including hydrogen containing material and fluoride, and a second compound including a metal which becomes highly reactive with hydrogen when the metal becomes a compound including fluorine, and a compound including fluorine. The first compound and the second compound are integrally formed into a one-piece layer on the surface of the hydrogen containing material. The metal which becomes highly reactive with hydrogen when the metal becomes a compound including fluorine is at least one metal selected from a rare earth metal, rare earth alloy, Fe, Al, Mg, Ca, Mn, Zn, Zr, Li, or alloys comprising these elements.

Abstract: The invention relates to a method of controlling a treatment line. According to said method a) a correlation between one or several variable parameters of the chemical and/or physical processes of the treatment line and one or several characteristic values that are characteristic of the success of the treatment is established; rules are derived of this correlation that describe the dependence of the characteristic value or the characteristic values of the variable parameters; the correlation and/or the rules derived therefrom are stored in a control system for the treatment line; b) the one or the several characteristic value(s) is/are measured continuously or discontinuously; c) if said characteristic values deviate from a predetermined standard range of values, the/those variable parameter(s) that is/are most closely correlated with said characteristic value is/are modified in the direction which counteracts the deviation of the characteristic value or the characteristic values from the standard range.

Abstract: The phosphate concentration, and therefore the pollution potential, of conventional high quality phosphating compositions containing zinc, manganese, and, optionally, nickel or copper cations, can be reduced without loss of corrosion protective value of the phosphate coatings formed by maintaining concentrations of active ingredients within prescribed ranges. Under the most preferred conditions, the corrosion resistance of phosphated and then painted cold rolled steel and the paint adhesion to phosphated and then painted electrogalvanized steel are improved over values obtained with the now most commonly used commercial high quality low zinc phosphating processes.

Abstract: A method and system for inhibiting corrosion of aluminum and other metal-containing components and structures exposed to water is disclosed. In one embodiment, the silicate solution is used as a test fluid medium for structural testing of aluminum-alloy or other metal container structures including propellant tanks, in which a structure filled with the medium is then subjected to various structural load testing. In another embodiment, the silicate solution is used as a test medium for proof pressure hydrostatic or load testing of launch vehicle booster tanks. The silicate film protects the underlying base metal surface against corrosion during these tests. The film also protects the base metal surface in normal atmospheric conditions from exposure to humidity and other atmospheric moisture after removal of the test medium from the propellant tank following completion of testing.

Abstract: A reversible hydrogen storage alloy capable of absorbing approximately 4 weight percent hydrogen and desorbing up to 2.8 weight percent hydrogen at temperatures up to 100° C. The hydrogen storage alloy is generally composed of titanium, vanadium, chromium, and manganese. Additional elements such as zirconium, yttrium, iron, nickel, zinc, molybdenum, and tantalum may also be included in the alloy.

Abstract: A method of laser marking which comprises applying a laser beam to a metal surface under the influence of an assist gas to produce durable, repeatable and striking colors on the metal surface. The method provides an easy and flexible alternative to conventional metal decorating techniques.

Abstract: A deposition process including applying an inoculant to at least a portion of the surface of a metal component, and then forming an intermetallic layer at the inoculant surface, such as by exposing at least the coated surface portion to a deposition environment.

Abstract: A surface treatment, especially for titanium and aluminum alloys, forms a pigmented sol-gel film covalently bonded on the metal surface to produce desired color, gloss, reflectivity, electrical conductivity, emissivity, or a combination thereof usable over a wide temperature range. The coating retains its characteristics and impact resistance following exposures to temperatures at least in the range from −321° F. to 750° F. An aqueous sol containing an alkoxyzirconium and an organosilane with an organic acid catalyst and zirconium stabilizer is applied to etched or grit blasted substrates by dipping, spraying, or drenching, to produce bonds in a single application comparable in strength and performance to standard anodize controls. Parameters affecting performance include the sol composition, the Si/Zr ratio, the ratio of sol ingredients, the concentration of the sol, the carrier solvent, solution age, catalysts, surface pretreatment, application method, curing process, and primer used.

Abstract: A method of depositing by chemical vapor deposition a modified platinum aluminide diffusion coating onto a superalloy substrate comprising the steps of applying a layer of a platinum group metal to the superalloy substrate; passing an externally generated aluminum halide gas through an internal gas generator which is integral with a retort, the internal gas generator generating a modified halide gas; and co-depositing aluminum and modifier onto the superalloy substrate. In one form, the modified halide gas is hafnium chloride and the modifier is hafnium with the modified platinum aluminum bond coat comprising a single phase additive layer of platinum aluminide with at least about 0.5 percent hafnium by weight percent and about 1 to about 15 weight percent of hafnium in the boundary between a diffusion layer and the additive layer. The bond coat produced by this method is also claimed.

Abstract: A tin layer and a nickel layer are stacked sequentially on a given substrate to form a multilayered film composed of the tin layer and the nickel layer. Then, the multilayered film is heated to a given temperature to form a tin-nickel alloy film through the diffusion of the tin elements of the tin layer into the nickel layer.

Abstract: Ti alloy is embedded in a powder such as graphite and heated with the powder in an oxygen atmosphere. Oxygen atoms are diffused into the Ti alloy to form an oxygen diffusion layer of Ti—O solid solution, thereby increasing wear resistance of the valve. A poppet valve in an internal combustion engine may be made of such Ti alloy.

Abstract: A method of manufacturing titanium alloys in large-section semi-finished product form with controlled microstructure in micrograin and subcrystalline states of aggregation, with reduced metallographic texture, is achieved with the desired combination of mechanical properties in the titanium alloy product.

Abstract: A hydrogen peroxide solution is applied onto the surface of a metallic member to oxidize the metallic member and to form the oxide film. At this time, a light beam is irradiated towards the metallic member through the hydrogen peroxide solution to promote oxidization of the metallic member. The light beam is one of a visible ray, a laser beam, and an ultraviolet ray.

Abstract: The present invention relates to an improved method for the manufacture of aircraft engine cylinder barrels to prevent their premature failure due to hairline cracks or specks thought to be caused by caustic stress corrosion cracking during black oxide treatment. Machined aircraft cylinder barrels immersed into a black oxide chemical bath composed of a solution containing about 60% sodium hydroxide, about 0% sodium nitrate, and about 40% sodium nitrite most effectively prevents specks and hairline cracks. Since residual stresses from machining also contribute to the probability that specks or hairline cracks will occur during black oxide treatment, the maximum selected number of cylinder barrels essentially free of detectible specks or hairline cracks determines the maximum number of cylinder barrels to be machined on a given set of tool bits.

Abstract: The present invention relates to structures within an x-ray device including an x-ray can, an x-ray can window frame insert, a rotor sleeve, and a bearing support assembly for a rotor structure. The various structures are fabricated from a chromium alloy of copper that is essentially oxygen free copper having a minor amount of chromium, the combination of which imparts desirable qualities to the x-ray device structures, including efficient heat sink and emissivity qualities that are beneficial in an x-ray device environment. In one preferred embodiment of the present invention, oxygen free high conductivity (OFHC) copper is melted in an RF furnace in the presence of a minor amount of chromium and is either ingot cast or powder metallurgically cast into a desired article and further fabricated into a finished article.

Abstract: An article protected by a thermal barrier coating system is fabricated by providing an article substrate having a substrate surface, and thereafter producing on the substrate surface a protective coating having a polished, pre-oxidized protective coating surface. The protective coating is produced by depositing the protective coating on the substrate surface, the protective coating having a protective coating surface, thereafter polishing the protective-coating surface, and thereafter controllably oxidizing the protective-coating surface. The protective-coating surface may optionally be controllably roughened by grit blasting after polishing and before controllably oxidizing. A thermal barrier coating may be deposited overlying the polished, pre-oxidized protective-coating surface.

Abstract: An alloy comprising tantalum and silicon is described. The tantalum is the predominant metal present. The alloy also has a uniformity of tensile strength when formed into a wire, such that the maximum population standard deviation of tensile strength for the wire is about 3 KSI for an unannealed wire at finish diameter and about 2 KSI for an annealed wire at finish diameter. Also described is a process of making a Ta-Si alloy which includes reducing a silicon-containing solid and a tantalum-containing solid into a liquid state and mixing the liquids to form a liquid blend and forming a solid alloy from the liquid blend. Another process of making a Ta-Si alloy is described which involves blending powders containing tantalum or an oxide thereof with powders containing silicon or a silicon-containing compound to form a blend and then reducing the blend to a liquid state and forming a solid alloy from the liquid state.

Abstract: The present invention provides a low alloying element-doped titanium and a casting cast therefrom. The doped titanium of the present invention includes titanium and from about 0.01 to 3 percent by weight of an alloying metal selected from the group consisting of bismuth, silver, hafnium, tantalum, molybdenum, tin, niobium, chromium and copper based on the weight of the titanium. The doped titanium of the present invention has improved castability and a decreased surface tension compared with pure titanium.

Abstract: The present invention provides a corrosion inhibitor composition for magnesium or magnesium alloys which contains as an effective component, at least one compound selected from among aromatic carboxylic acids and salts thereof as an effective component. Further, the present invention provides a surface treating agent for magnesium and/or magnesium alloy components which contains a phosphate, at least one compound selected from among aromatic carboxylic acids and salts thereof, and further, as required, at least one compound selected from among pyrazole compounds and triazole compounds,and surface-treating method using the surface treating agent.