Abstract: Disclosed is a corrosion resistant aluminum-based alloy which is composed of a compound having a composition consisting of the general formula: Al.sub.a M.sub.b Mo.sub.c X.sub.d Cr.sub.e wherein: M is one or more metal elements selected from the group consisting of Ni, Fe, Co, Ti, V, Mn, Cu and Ta; X is Zr or a combination of Zr and Hf; and a, b, c, d and e are, in atomic percentages; 50%.ltoreq.a.ltoreq.89%, 1%.ltoreq.b.ltoreq.25%, 2%.ltoreq.c.ltoreq.15%, 4%.ltoreq.d.ltoreq.20% and 4%.ltoreq.e.ltoreq.20%, the compound being at least 50% by volume composed of an amorphous phase. The Al-based alloy exhibits a very high corrosion resistance in severe corrosive environments, such as hydrochloric acid solution or sodium hydroxide solution, due to the formation of a highly passivative protective film. Therefore, the alloy exhibits a good durability in long services under such severe corrosive environments.

Abstract: The present invention relates to an aluminum alloy for fins of heat exchangers such as of automobile radiators and evaporators comprising 0.3 to 1.0% by weight of silicon, 0.3 to 3.0% by weight of iron, and the balance of aluminum and unavoidable impurities, which is readily workable for a fin (or readily corrugated), and is less deformed by brazing heat, and yet has improved thermal conductivity after the brazing.

Abstract: An aluminum-lithium based alloy which comprises 10-20 wt. % silicon, 1.5-5.0 wt. % copper, 1.0-4.0 wt. % lithium, 0.45-1.5 wt. % magnesium, 0.01-1.3 wt. % iron, 0.01-0.5 wt. % manganese, 0.01-1.5 wt. % nickel, 0.01-1.5 wt. % zinc, 0.01-0.5 wt. % silver, 0.01-0.25 wt. % titanium and the balance aluminum. The alloy is utilized to cast high temperature assemblies including pistons which have a reduction in density and similar mechanical properties including tensile strengths to alloys presently used.

Abstract: The present invention is directed to coating compositions of surge arrester electrodes which do not contain any radioactive materials and which permit the surge arrester to operate both in a well-lighted environment and in a dark environment.The coating composition for the electrodes of a surge arrester contains at least some aluminium, titanium and a product of the type MA or M.sup.n+, A.sup.n- in which M represents an alkaline metal, A a sulphate or a carbonate of this metal and n is equal to 1 or 2.The invention has preferred application for the coating of the electrodes of miniature or three element surge arresters.

Abstract: The present invention provides a corrosion resistant aluminum-based alloy consisting of a compound which has a composition represented by the general formula:Al.sub.a M.sub.b Mo.sub.c Hf.sub.d Cr.sub.ewherein:M is at least one metal element selected from Ni, Fe and Co and a, b, c, d and e are atomic percentages falling within the following ranges: 50%.ltoreq.a.ltoreq.88%, 2%.ltoreq.b.ltoreq.25%, 2%.ltoreq.c.ltoreq.15%, 4%.ltoreq.d.ltoreq.20% and 4%.ltoreq.e.ltoreq.20%,the compound being at least 50% by volume composed of an amorphous phase. The aluminum-based alloys not only have a high degree of hardness, strength and heat resistance but also exhibit a significantly improved corrosion resistance.

Abstract: A rapidly solidified aluminum base alloy consists essentially of the formula Al.sub.bal Fe.sub.a Si.sub.b X.sub.c, wherein X is at least one element selected from the group consisting of W, Ta, Nb, "a" ranges from 3.0 to 7.1 at %, "b" ranges from 1.0 to 3.0 at %, "c" ranges from 0.25 to 1.25 at % and the balance is aluminum plus incidental impurities, with the provisos that the ratio [Fe+X]:Si ranges from abut 2.33:1 to 3.33:1 and that the ratio Fe:X ranges from abut 16:1 to 5:1. The alloy exhibits high strength, ductility and fracture toughness and is especially suited for use in high temperature structural applications such as gas turbine engines, missiles, airframes and landing wheels.

Abstract: Low density, high temperature and aluminum-rich intermetallic alloys displaying excellent elevated temperature properties, including oxidation resistance, are disclosed. Based on the aluminum/titanium system, specifically modifications of Al.sub.3 Ti compositions, useful alloys are derived from changes in crystal structure and properties effected by selected-site substitution alloying with manganese and/or chromium, and, where used, vanadium, or equivalent site-substituting alloying elements.

Abstract: The invention relates to an aluminum alloy component retaining a good fatigue strength when used hot. The alloy contains by weight 11 to 26% silicon, 2 to 5% iron, 0.5 to 5% copper, 0.1 to 2% magnesium, 0.1 to 0.4% zirconium and 0.5 to 1.5% manganese, the alloy in the molten state is subjected to a fast solidification means, bringing it into the form of parts of components and optionally subjecting the latter to a heat treatment at between 490.degree. and 520.degree. C., followed by water hardening and annealing at between 170.degree. and 210.degree. C. Components formed of the alloy are used more particularly as rods, piston rods and pistons.

Abstract: Ductile, strong, and stable (crystallization temperature above 250.degree. C.) Al-X-Z metallic classes contain 90 at. % Al where X-Fe, Co, Ni, Rh; Z-rare earths, Hf, Y, Stable (crystallization temperatures reaching 500.degree. C.) Al-Y-Fe-Si glasses have superior hardness properties upon consolidation. The present alloys are at least twice as strong in tensile strength as the strongest commercial aluminum alloys.

Abstract: The invention provides an aluminum based alloy consisting essentially of the formula Al.sub.bal Fe.sub.a X.sub.b, wherein X is at least one element selected from the group consisting of Zn, Co, Ni, Cr, M, V, Zr, Ti, Y, Si and Ce, "a" ranges from about 7-15 wt %, "b" ranges from about 1.5-10 wt % and the balance is aluminium. The alloy has a predominately microeutectic microstructure.The invention provides a method and apparatus for forming rapidly solidified metal within an ambient atmosphere, the rapidly solidified metal being an aluminum based alloy. Generally stated, the apparatus includes a moving casting surface which has a quenching region for solidifying molten metal thereon. A reservoir holds the molten metal and has orifice means for depositing a stream of the molten metal onto the casting surface quenching region.

Abstract: The present invention relates to an aluminum alloy containing vanadium characterized by improved corrosion resistance and articles made therefrom wherein said article when anodized have a uniformly grey, light-fast surface and a reflectivity of at most 50%.

Abstract: A stable age hardenable aluminum alloy which has useful mechanical properties at temperatures up to at least 900.degree. F. (482.degree. C.). The alloy contains 5-15% iron, 1-5% molybdenum and 0.2-6% vanadium with balance aluminum and is processed by rapid solidification from the melt to form a particulate which is consolidated to form a bulk article.

Abstract: A TiAl composition is prepared to have high strength and to have improved ductility by altering the atomic ratio of the titanium and aluminum to have what has been found to be a highly desirable effective aluminum concentration by addition of vanadium and rapid solidification from the melt according to the approximate formula Ti.sub.49 Al.sub.48 V.sub.3.

Abstract: An improved alloy consisting essentially of about 6 to 10 weight percent Fe, about 2 to 10 weight percent Gd, balance Al. The alloy may also contain minor amounts of one or more refractory metals.

Abstract: An aluminum alloy containing about 2 to 6 weight percent titanium, about 3 to 11 weight percent of a rare earth of the Lanthanide Series and up to about 3 weight percent of at least one Group VIII metal, balance aluminum, is disclosed. The alloy is preferably prepared by rapid solidification in powder, particulate or ribbon form, and is subsequently compacted under controlled conditions.

Abstract: An aluminum alloy for the production of powders having increased high-temperature strength by rapid quenching, the said alloy containing 1.5 to 5% by weight of Li, 4 to 11% by weight of Fe and 1 to 6% by weight of at least one of the elements Mo, V or Zr, the remainder being Al, or 1.5 to 5% by weight of Li, 4 to 7% by weight of Cr and 1 to 4% by weight of at least one of the elements V or Mn, the remainder being Al. A low density and good high-temperature strength as well as good thermal stability up to 400.degree. C. coupled with Vickers hardnesses of up to 180 (HV) are achieved. Hardness-imparting dispersoids in the form of the phases Al.sub.3 Li and Al.sub.3 Zr, as well as other intermetallic compounds of Al with Mo, V or Mn, having a particle diameter of no more than 0.1 .mu.m, constitute a large volume fraction.

Abstract: A rapidly solidified aluminum-base alloy consists essentially of the formula Al.sub.bal Fe.sub.a Si.sub.b X.sub.c, wherein X is at least one element selected from the group consisting of Mn, V, Cr, Mo, W, Nb, Ta, "a" ranges from 1.5 to 7.5 atom percent, "b" ranges from 0.75 to 9.0 atom percent, "c" ranges from 0.25 to 4.5 atom percent and the balance is aluminum plus incidental impurities, with the proviso that the ratio [Fe+X]:Si ranges from about 2.01:1 to 1.0:1. The alloy exhibits high strength, ductility and fracture toughness and is especially suited for use in high temperature structural applications such as gas turbine engines, missiles, airframes and landing wheels.

Abstract: Aluminum alloy, suitable for rapid quenching from a melt supersaturated with alloy components, which contains 2 to 5.5% by weight of Cr and 2 to 5.5% by weight of V, the remainder being Al, and may contain further added amounts of Mo, Zr, Ti or Fe, individually or in combination, up to a total content of not more than 1% by weight, the total content of all alloy elements being no more than 10% by weight. The simultaneous occurrence of the phases Al.sub.13 Cr.sub.2 and Al.sub.10 V in silid solution and as hardness-imparting dispersoids having a particle diameter of not more than 0.1 .mu.m results in good high-temperature strength and thermal stability coupled with good ductility and toughness of the material. The comparatively Low Vickers hardness of, on average, only about 130 (HV) for the rapidly solidified alloys initially obtained make the powders readily processable. After the heat treatment, the Vickers hardness of the workpiece reaches values up to about 200 (HV).

Abstract: The invention provides an aluminum based alloy consisting essentially of the formula Al.sub.bal Fe.sub.a V.sub.b X.sub.c, wherein X is at least one element selected from the group consisting of Zn, Co, Ni, Cr, Mo, Zr, Ti, Hf, Y and Ce, "a" ranges from about 7-15 wt %, "b" ranges from about 2-10 wt %, "c" ranges from about 0-5 wt % and the balance is aluminum. The alloy has a distinctive microstructure which is at least about 50% composed of a generally spherical, intermetallic O-phase.Particles composed of the alloys of the invention can be heated in a vacuum and compacted to form a consolidated metal article have high strength and good ductility at both room temperature and at elevated temperatures of about 350.degree. C. The consolidated article is composed of an aluminum solid solution phase containing a substantially uniform distribution of dispersed intermetallic phase precipitates therein.

Abstract: An aluminum alloy support for a lithographic printing plate, suitable for an electrochemical roughening treatment and excellent in fatigue resistance, heat softening resistance and printability, is provided which comprises 0.05 to less than 1% by weight of Mn, at most 0.2% by weight of Si, at most 0.5% by weight of Fe and unavoidable amounts of impurities.

Abstract: A superior high-temperature strength aluminum alloy material is produced by consolidating rapdily solidified particulates of an aluminum alloy into a desired configuration, the aluminum alloy consisting of, in weight percentages, 4 to 15% Fe, and 0.5 to 8% V and the balance being essentially aluminum. The aluminum alloy may further contain at least one element selected from the group consisting of 0.5 to 8% Mo, 0.5 to 8% Ni, 0.3 to 8% Zr and 0.5 to 8% Ti and these additional components develop a further increased strength in the resulting formed materials. Since the consolidated aluminum materials above specified have a superior strength at high temperatures as well as moderate temperature without an expensive Ce, they are highly useful as economical heat-resistant materials for various applications, particularly for the fields where high strength at high temperatures and lightness of weight are required.

Abstract: This invention relates to aluminum alloy compositions that have superior corrosion and pitting resistance. These compositions include small amounts of manganese and tin, with the major constituent being aluminum. Elements such as zinc, titanium, tantalum, and/or cobalt can also be added. The manganese content ranges from 0.20 to 2 weight percent and the tin content ranges from 0.20 to 1.5 weight percent. When included, the zinc content ranges from 0.03 to 0.5 weight percent, the titanium content ranges from 0.001 to 0.5 weight percent, the tantalum content ranges from 0.03 to 0.2 weight percent and the cobalt content ranges from 0.03 to 0.2 weight percent, and the boron content ranges from 0.03 to 0.1 weight percent.

Abstract: This invention relates to aluminum alloy compositions that have superior pitting corrosion resistance. These compositions include small amounts of manganese, lead, and bismuth, with the major constituent being aluminum. Elements such as titanium, zinc, cobalt, zirconium, and/or boron can also be added. The manganese content ranges from 0.20 to 2 weight percent, the lead content ranges from 0.02 to 0.4 weight percent and the bismuth content ranges from 0.02 to 0.2 weight percent. When included, the zinc content can range from 0.03 to 0.5 weight percent and the titanium content can range from 0.05 to 0.5 weight percent, the cobalt content can range from 0.03 to 0.2 weight percent, the zirconium content can range from 0.03 to 0.5 weight percent, and the boron content can range from 0.03 to 0.1 weight percent.

Abstract: A process for preparation of graphite-containing aluminum alloys includes incorporating graphite particles into an aluminum containing melt. When the graphite particles are incorporated, floating of the graphite particles to the surface of the melt is prevented by the use of certain additive metals. Before the graphite particles are incorporated into the melt, titanium, chromium, zirconium, nickel, vanadium, cobalt, manganese, niobium or phosphorus is incorporated and dispersed into the melt. The produced aluminum alloys are suitable to use as dry frictional contacts such as bearings.

Abstract: An improved cast ingot of aluminum alloy satisfactorily available for rolling operation containing Fe is disclosed which has no fir-tree structure or has only a very small region of fir-tree structure. This cast ingot of aluminum alloy contains calcium in the range of 0.0005 to 0.05% and has a grain size smaller than 150 microns in the region extended inward of a coarse cell phase on the surface area of the cast ingot, particularly in the vicinity of said coarse cell phase. The cast ingot is manufactured by way of the steps of addition of the above amount of calcium to molten aluminum alloy, supplementary addition of 0.005 to 0.1% Ti and 0.0001 to 0.02% B to the molten aluminum alloy and then continuous D.C. casting.

Abstract: NiCrAl alloys are improved by the addition of zirconium. These alloys are in the .beta. or .gamma./.gamma.'+.beta. region of the ternary system.Zirconium is added in a very low amount between 0.06 and 0.20 weight percent. There is a narrow optimum zirconium level at the low value of 0.13 weight percent.Maximum resistance to cyclic oxidation is achieved when the zirconium addition is at the optimum value.