Abstract: A heat-resistant magnesium alloy is for casting, and includes Ca in an amount of from 1 to 15% by mass, Al in a summed amount of from 4 to 25% by mass with the amount of Ca, and the balance being Mg and inevitable impurities when the entirety is taken as 100% by mass. The heat-resistant magnesium alloy is not only inexpensive, but also effects an advantage that cracks are inhibited from occurring when being cast. For example, a process for producing heat-resistant magnesium alloy cast product includes the step of pressure pouring an alloy molten metal, which has a target composition around Mg-3% Ca-3% Al-from 0.2 to 0.3% Mn, into a cavity of metallic die, which is preheated to a die temperature of from 130 to 140° C. in advance. The process makes it possible to produce die-cast products, which are free from cast cracks.

Abstract: A casting heat-resistance Mg alloy improved in heat resistance without relying upon expensive RE contains Cu. More specifically, it contains Al (8.0 weight %), Cu (1.0-5.0 weight %), Zn (2.0 weight %), Be (0.01 weight %) and Mg (the rest). The alloy can be prevented from deteriorating in corrosion resistance by adjusting the added amount of Cu to 1.0-1.5 weight %. The corrosion resistance of the alloy can be improved more by adding 0.5 to 1.0 weight % Mn as well.

Abstract: A marker alloy foreign implant made of a biodegradable metallic material and having the composition MgxYbyMz wherein x is equal to 10-60 atomic percent; y is equal to 40-90 atomic percent; z is equal to 0-10 atomic percent; M is one or more element selected from the group consisting of Ag, Zn, Au, Ga, Pd, Pt, Al, Sn, Ca, Nd, Ba, Si, and Ge; and wherein x, y, and z, together, and including contaminants caused by production, result in 100 atomic percent.

Abstract: This invention takes advantage of the characteristics that the effective charge numbers of different metals have different values and even with different signs, and alloys are prepared with the metals of different signs of effective charge numbers. The effective charge numbers of the alloys are the summation of the mole fraction of each constituent metal times its respective effective charge number. Based on the knowledge of the calculated effective charge number, alloys are prepared with proper selection of constituent metals and proper ratios. When the alloy is under the influence of an electric field, the atoms, with the tendency to move in the same direction of the electron flow, interact with the atoms, with the tendency to move in the opposite. The alloys are thus electromigration effect-free or electromigration effect-insignificant.

Abstract: A magnesium alloy containing aluminum, manganese and calcium includes 6˜12% by weight of aluminum, 0.1˜1.5% by weight of manganese, a calcium/aluminum mass ratio being 0.55˜1.0, and balance being magnesium and inevitable impurities.

Abstract: A magnesium based alloy containing at least 85.4 wt % Mg, 4.7 to 7.3 wt % aluminum, 0.17 to 0.60 wt % manganese, 0.0 to 0.8 wt % zinc, 1.8 to 3.2 wt % calcium, 0.3 to 2.2 wt % tin, and 0.0 to 0.5 wt % strontium. The alloy may comprising up to 0.004 wt % iron, up to 0.001 wt % nickel, up to 0.003 wt % copper, or up to 0.03 wt % silicon. In addition, the alloy may comprise up to 0.001 wt % beryllium.

Abstract: A die castable magnesium based alloy comprising, by weight, between about 3 and 10% aluminum, between about 0.5 and 2.5% calcium, up to about 1.5% silicon, up to about 0.7% zinc, and the remainder being magnesium. The alloy has been found to exhibit more favorable castability and creep resistance than comparative magnesium based alloys.

Abstract: There is provided a magnesium alloy containing mass percent Al: 5% to 7%, Ca: 2% to 4%, Mn: 0.1% to 0.8%, Sr: 0.001% to 0.05% and rare earth elements: 0.1% to 0.6%. If necessary, an allowable content is set in each of Si, Zn, Cu, Ni, Fe and Cl of the unavoidable impurities, with Si not higher than mass percent 0.01%, Zn not higher than mass percent 0.01%, Cu not higher than mass percent 0.008%, Ni not higher than mass percent 0.001%, Fe not higher than mass percent 0.004%, and Cl not higher than mass percent 0.003%. There is also provided a magnesium alloy member injected in the die by using such an alloy.

Abstract: The present invention relates to a non-combustible magnesium alloy, comprising one of elements of Al at 0.1˜3 wt %, La at 0.1˜3 wt %, Nd at 0.1˜3 wt %, or Y at 0.005˜3 wt %; 0.5˜10 wt % of Ca; and the remainder of conventional magnesium alloy. Alternatively, the present invention entails a non-combustible magnesium alloy comprising 0.005˜4 wt % of multiple additives of two or more types of elements selected from the group consisting of Al, La, Nd and Y; 0.5˜10 wt % of Ca; and the remainder of conventional magnesium alloy. The magnesium alloy of the present invention has high oxidation-resistance, which translates into high manufacturability in air or in the generally non-oxidative atmosphere (SO2, Ar, CO2, N2).

Abstract: A magnesium-based casting alloy having good salt-spray corrosion resistance and improved creep resistance, tensile yield strength and bolt-load retention, particularly at elevated temperatures of at least 150° C., is provided. The inventive alloy comprises, in weight percent, 2 to 9% aluminum and 0.5 to 7% strontium, with the balance being magnesium except for impurities commonly found in magnesium alloys. A method of making an oxidation-resistant alloy melt, and the alloy melt prepared by such a method, are also provided. The alloy melt comprises magnesium as a primary alloying metal, and aluminum and strontium as secondary alloying metals, while the inventive method comprises: melting the alloying metals under an atmosphere of an inert gas selected from a mixture of carbon dioxide and sulfur fluoride gas, a mixture of nitrogen and sulfur dioxide gas, and combinations thereof.

Abstract: This invention takes advantage of the characteristics that the effective charge numbers of different metals have different values and even with different signs, and alloys are prepared with the metals of different signs of effective charge numbers. The effective charge numbers of the alloys are the summation of the mole fraction of each constituent metal times its respective effective charge number. Based on the knowledge of the calculated effective charge number, alloys are prepared with proper selection of constituent metals and proper ratios. When the alloy is under the influence of an electric field, the atoms, with the tendency to move in the same direction of the electron flow, interact with the atoms, with the tendency to move in the opposite. The alloys are thus electromigration effect-free or electromigration effect-insignificant.

Abstract: Magnesium alloy with improved corrosion resistance comprising magnesium, 1.5-5 weight % Al, 0.6-1.4 weight % Si, 0.01-0.6 weight % Mn and 0.01-0.4 weight % RE. Method of improving the corrosion resistance of magnesium, aluminium, silicon alloys where Mn is added in order to reduce FE impurities, by keeping both Mn and Fe at a low level by adding small amounts of RE.

Abstract: A heat-resistant magnesium alloy is for casting, and includes Ca in an amount of from 1 to 15% by mass, Al in a summed amount of from 4 to 25% by mass with the amount of Ca, and the balance being Mg and inevitable impurities when the entirety is taken as 100% by mass. The heat-resistant magnesium alloy is not only inexpensive, but also effects an advantage that cracks are inhibited from occurring when being cast.

Abstract: A heat resistant magnesium alloy contains 1 to 6 percentage by mass of aluminum, 0.5 to 3 by mass ratio of calcium to aluminum, and the remainder made from magnesium and unavoidable impurities.

Abstract: Various aspects of the present invention provides a nanocrystalline powder suitable for storing hydrogen and a method of producing such a powder. One embodiment provides a nanocrystalline powder containing crystals of an aluminum alloy selected from the group consisting of NaAlx, LiAlx, and MgAl2x, wherein x is between 0.9 and 1.1, desirably 0.95-1.05, preferably about 1. The nanocrystalline powder also desirably includes an intercalated catalyst selected from the group consisting of C, Ti, Pt, Pd, V, Zr, and combinations of two or more of those materials.

Abstract: The present invention provides a die casting magnesium alloy having excellent heat resistance and castability, and the alloy of the present invention is a die casting magnesium alloy having excellent heat resistance and castability, comprising 2 to 6% by weight of Al, 0.3 to 2% by weight of Ca, 0.01 to 1% by weight of Sr, 0.1 to 1% by weight of Mn, the balance magnesium and unavoidable impurities. According to the present invention, more excellent effects can be obtained in the composition wherein rare earth elements are added to the composition described above.

Abstract: There are provided a painted structure of a magnesium alloy molded product having an aesthetic appearance, a painting method of forming the patented structure of the magnesium alloy molded product having an aesthetic appearance, and a casing fabricated using the magnesium alloy molded product. The painted structure of the magnesium alloy molded product has flow marks of which maximum depth is 100 &mgr;m and maximum opening width is 0.5 mm. An anticorrosive film is formed on a surface of the magnesium alloy molded product, and a painted film having an average surface roughness of 10 &mgr;m or more and a thickness of 80 &mgr;m or more is formed on a surface of the anticorrosive film.

Abstract: A method of manufacturing a material for a magnesium alloy member, characterized in that the method comprises the steps of: heating a solid-liquid coexistent magnesium alloy up to a temperature in the range of from the solidus temperature or more to the liquidus temperature thereof or less; homogeneously dispersing carbon fibers into the solid-liquid coexistent magnesium alloy, wherein the carbon fibers have been cut into arbitrary lengths or powdered and have not been subjected to surface treatment; and then cooling the magnesium alloy.

Abstract: Magnesium alloys containing, by mass percent, Al: 10.0 to 13.0%, Si: 0.3 to 1.5%, Mn: 0.1 to 1.0%, and, if desired, Zn: less than 0.8%, the rest being Mg and unavoidable impurities. Neither cracking by the casting is invited nor the mechanical property is spoiled, and the fluidity can be notably improved, and it is possible to make products small in thickness and light in weight.

Abstract: A magnesium based alloy containing at least 86 wt % Mg; 4.8 to 9.2 wt % aluminum, 0.08 to 0.38 wt % manganese, 0.00 to 0.9 wt % zinc, 0.2 to 1.2 wt % calcium, 0.05 to 1.4 wt % strontium, and 0.00 to 0.8 wt % rare earth elements. The alloy may also comprise up to 0.02 wt % zirconium and up to 0.001 wt % beryllium.

Abstract: A magnesium based alloy containing at least 85.4 wt % Mg, 4.7 to 7.3 wt % aluminum, 0.17 to 0.60 wt % manganese, 0.0 to 0.8 wt % zinc, 1.8 to 3.2 wt % calcium, 0.3 to 2.2 wt % tin, and 0.0 to 0.5 wt % strontium. The alloy may comprising up to 0.004 wt % iron, up to 0.001 wt % nickel, up to 0.003 wt % copper, or up to 0.03 wt % silicon. In addition, the alloy may comprise up to 0.001 wt % beryllium.

Abstract: Atomically engineered hydrogen storage alloys which include a spectrum of hydrogen bonding energies and multiple hydride phases which extends and enhances their storage capacity at high pressures and high pressure hydrogen storage units which contain a variable amount of these hydrogen storage alloys therein to enhance the storage capacity of the unit beyond that obtainable by conventional alloys or pressurized hydrogen gas alone.

Abstract: A process for deposition and condensation and reaction and separation and distillation employing at least two chambers separated by a diaphragm with at least one separation wall and at least one orifice or flow duct or plurality thereof, said process providing a controlled and stationary conveyance capacity of an uncondensed intermediary phase for a product or by-product with a controlled concentration, structure or microstructure, for example, said conveyance capacity relying on a controlled pressure of an atmosphere in the at least two chambers on both side of said diaphragm and on a novel diaphragm and condenser technology and a temperature control of one or more chamber walls or said diaphragm or parts of said diaphragm being transversed by said uncondensed intermediary phase.

Abstract: An alloy feedstock for semi-solid metal injection molding. The alloy feedstock is an alloy material in particulate form and has a heterogeneous structure, a temperature range at 20% of the height of the peak of the main melting reaction greater than 40° C., and having a ratio of the height of the peak of the eutectic reaction to the height of the main melting reaction of less than 0.5.

Abstract: An anodized magnesium piston including a head and skirt for an internal combustion engine. The piston includes a non-fiber-reinforced, magnesium-based alloy including up to 2.5 percent by weight rare earth metals. The piston further includes an external surface, at least a portion of which has a base layer of magnesium fluoride, magnesium oxofluoride, magnesium oxide or a mixture thereof electrochemically anodized thereto.

Abstract: Hydrogen propelled vehicles and fundamentally new magnesium-based hydrogen storage alloy materials which for the first time make it feasible and practical to use solid state storage and delivery of hydrogen to power internal combustion engine or fuel cell vehicles. These exceptional alloys have remarkable hydrogen storage capacity of well over 6 weight % coupled with extraordinary absorption kinetics such that the alloy powder absorbs 80% of its total capacity within 10 minutes at 300° C. and a cycle life of at least 500 cycles without loss of capacity or kinetics.

Abstract: A magnesium alloy of the present invention includes magnesium as a main component, boron of 0.0005 weight % or more, manganese of 0.03 to 1 weight %, and substantially no zirconium or titanium. This magnesium alloy may further include aluminum of 1 to 30 weight % and/or zinc of 0.1 to 20 weight %. Because of appropriate amounts of boron and manganese contained in the magnesium alloy, the grain of the mangnesium alloy is refined.

Abstract: A heat-resistant magnesium alloy member having specially excellent molding property and elongation while keeping creep resistance property, which comprises 2 to 6% by weight of aluminum and 0.5 to 4% by weight of calcium, and the balance comprising magnesium and inevitable impurities, having a Ca/Al ratio of no more than 0.8, preferably no more than 0.6. The method of preparing the heat-resistant magnesium alloy member is characterized in a semi-solid injection molding at a range between a solidus temperaaature of the alloy and a liquidus temperature of the alloy.

Abstract: A magnesium-based casting alloy having improved elevated temperature properties and good salt-spray corrosion resistance. The inventive alloy comprises: 1 to 12% by wt. aluminum; 0.1 to 0.6% by wt. strontium; and 0.1 to 0.5% by wt. calcium, with the balance being magnesium except for impurities commonly found in magnesium alloys.

Abstract: A magnesium based hydrogen storage alloy powder which is useful as a hydrogen supply material for powering internal combustion engine or fuel cell vehicles. The alloy contains greater than about 85 atomic percent magnesium, about 2-8 atomic percent nickel, about 0.5-5 atomic percent aluminum and about 2-7 atomic percent rare earth metals or mixtures of rare earth metals. The rare earth elements may be Misch metal and may predominantly contain Ce and/or La. The alloy may also contain about 0.5-5 atomic percent silicon. The alloys can be modified to store more than 4 wt. % hydrogen, with a reduced hydride bond strength (i.e. about 64 kJ/mole) which allows for economic recovery of the stored hydrogen. Also, they have a plateau pressure about two times greater than pure Mg and comparable bond energies and plateau pressures to Mg2Ni alloys, while reducing the amount of incorporated nickel by 25-30 atomic %. Also, the storage capacity of the alloy is significantly greater than the 3.6 wt. % of Mg2Ni material.

Abstract: A magnesium-based casting alloy having good salt-spray corrosion resistance and improved creep resistance, tensile yield strength and bolt-load retention, particularly at elevated temperatures of at least 150° C., is provided. The inventive alloy comprises, in weight percent, 2 to 9% aluminum and 0.5 to 7% strontium, with the balance being magnesium except for impurities commonly found in magnesium alloys.

Abstract: A family of die castable, creep-resistant magnesium alloys has been developed for high-temperature structural applications such as automotive engines and transmission cases. These alloys contain between 3% and 6% aluminum, 1.7% and 3.3% calcium, and up to 0.2% strontium. They have demonstrated 25% greater tensile and compressive creep resistance than AE42, a commercial aluminum, rare earth containing magnesium alloy, and corrosion resistance as good as AZ91D. These alloys are estimated to cost less than AZ91D and have good castability in metal molds as used in permanent mold casting and die casting.

Abstract: A fast moving part for a plastic working apparatus, such as a press. It is formed from a composite containing, e.g., aluminum as a light metal matrix. The composite contains 10% to 45% by volume of a ceramic material and 0.1% to 1.0% by weight of free-cutting inclusions.

Abstract: Hydrogen propelled vehicles and fundamentally new magnesium-based hydrogen storage alloy materials which for the first time make it feasible and practical to use solid state storage and delivery of hydrogen to power internal combustion engine or fuel cell vehicles. These exceptional alloys have remarkable hydrogen storage capacity of well over 6 weight % coupled with extraordinary absorption kinetics such that the alloy powder absorbs 80% of its total capacity within 2 minutes at 300° C.

Abstract: A mechanically alloyed hydrogen storage material having 75-95 atomic percent Mg, 5-15 atomic percent Ni, 0.5-6 atomic percent Mo, and at least one additional element selected from the group consisting of Al, C, Ca, Ce, Co, Cr, Cu, Dy, Fe, La, Mn, Nd, Si, Ti, V, and Zr, preferably between 1-15 atomic %. The mechanically alloyed hydrogen storage preferably contains from 3-15 atomic % C and at least one other element selected from the group consisting of Al, Ca, Ce, Cu, Dy, Fe, La, Mn, and Nd. The hydrogen storage materials are created by mechanical alloying in a milling apparatus under an inert atmosphere, such as argon, or a mixed atmosphere, such as argon and hydrogen. The speed and length of the milling are varied.

Abstract: This invention aims to provide a nitriding method of forming a relatively thick nitride layer on the surface of an aluminum material containing silicon, and an auxiliary agent for nitriding. By using a nitriding auxiliary agent mainly comprising aluminum containing a metal such as lithium or boron, which has a high bonding strength with oxygen, coexists with silicon to form substantially no silicide, or a nitriding auxiliary agent mainly comprising an Al--Mg--Cu alloy or an Mg--Zn--Cu alloy, heat treatment is applied by nitrogen gas with the aluminum material to be nitrided contacted with the nitriding auxiliary agent. Hence, a thick nitride layer can be easily formed even on the surface of an aluminum material containing silicon, and this is most suitable to surface nitride aluminum-silicon alloys, which possess superior castability.

Abstract: A sample is taken out of a molten magnesium alloy, the cooling curve of the sample during solidification is measured, the content of the aluminum component in the sample is determined by the use of the crystallization temperature of a phase appearing in the cooling curve, together with cooling curves, and if the results of bath analysis show the components to deviate from the standard values and target values, an aluminum-manganese master alloy, aluminum or magnesium is added to the molten magnesium alloy to adjust the components to an appropriate amount of aluminum or an appropriate iron/manganese ratio, whereby a magnesium alloy is produced.

Abstract: A method for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a high vapor pressure at temperatures .apprxeq.300 C. and its subsequent condensation on and reaction with the other constituent (substrate) of an alloy thereby forming a controlled phase alloy and preferably a single phase alloy. It is preferred that the substrate material be a metal powder such that diffusion of the active metal constituent, preferably magnesium, and reaction therewith can be completed within a reasonable time and at temperatures .apprxeq.300 C. thereby avoiding undesirable effects such as sintering, local compositional inhomogeneities, segregation, and formation of unwanted second phases such as intermetallic compounds.

Abstract: A magnesium based alloy exhibiting superior elevated-temperature properties such as creep resistance and tensile strength and die castability such as reduced hot-cracking and die-sticking, contains about 2 to 9 wt. % aluminum, 6 to 12 wt. % zinc, 0.1 to 2.0 wt. % calcium, optionally 0.2 to 0.5 wt. % manganese, and the balance comprising magnesium. The alloy includes the intermetallic compound Mg--Al--Zn--Ca at the grain boundaries of the magnesium crystals. The alloy according to this invention may have a creep extension of less than about 0.6% at the tensile stress of about 35 MPa and the temperature of about 150.degree. C., and a tensile yield strength of at least 110 MPa at the temperature of about 150.degree. C. The alloy is particularly useful in die casting applications.

Abstract: A magnesium Mg--Al--RE magnesium alloy wherein an amount of a rare earth component may be reduced while optimial tensile strength and durability are obtained. The Alloy further includes a small calcium component. A high degree of creep resistance is obtained. Further, additional copper and/or zinc components may be introduced together, or singly for providing favorable tensile characteristics to the alloy material.

Abstract: A magnesium alloy includes 0.1 to 6.0% by weight of Al, 0.25 to 6.0% by weight of Zn, 0.1 to 4.0% by weight of rare earth element (hereinafter referred to as "R.E."), and balance of Mg and inevitable impurities. Preferably, it includes 1.0 to 3.0% by weight of Al ("a"), 0.25 to 3.0% by weight of Zn ("b") and 0.5 to 4.0% by weight of R.E.: wherein when "b" is in a range, 0.25.ltoreq."b".ltoreq.1.0, "a" and "c" satisfy a relationship, "c".ltoreq."a"+1.0; and when "b" is in a range, 1.0.ltoreq."b".ltoreq.3.0, "a," "b" and "c" satisfy a relationship, "c".ltoreq."a"+"b".ltoreq.(1/2)"c"+4.0; in order to further improve creep properties at elevated temperatures while maintaining enhanced tensile strength at room temperature and up to 100.degree. C. at least.

Abstract: A process for preparing a high strength magnesium alloy comprising heating a melt comprised of a base metal of magnesium, greater than 0.5% of lithium, and at least one alkali metal impurity selected from the group consisting of sodium, potassium, rubidium and cesium, the total alkali metal present in an amount greater than 5 ppm, to a temperature of about 50.degree. to 200.degree. C. above the melting point of alloy being refined in a vacuum for a sufficient time to reduce the aggregate concentration of alkali metal impurities in the melt to less than about 5 ppm as measured by GDMS.

Abstract: Procedure for the production of a thixotropic magnesium alloy by adding a grain refiner combined with controlled, rapid solidification with subsequent heating to the two-phase area. It is preferable to use a solidification rate of >1.degree. C./s, more preferably >10.degree. C./s. It is essential that the solidification takes place at such a speed that growth of dendrites is avoided. Heating to the two-phase area is carried out rapidly in 1-30 minutes, preferably 2-5 minutes. By heating an alloy comprising 2-8 weight % Zn, 1.5-5 weight % RE, 0.2-0.8 weight Zr balanced with magnesium to a temperature in the two-phase area after casting, the structure will assume a form in which the .alpha.-phase is globular (RE=rare earth metal). The size of the spheres will be dependent on the temperature and the holding time at that temperature and they will be surrounded by a low-smelting matrix. It is preferable that the alloy has a grain size of not greater than <100 .mu.m, more preferably 50-100 .mu.m.

Abstract: A high-strength magnesium-based alloy possessing a microcrystalline composition represented by the general formula: Mg.sub.a Al.sub.b M.sub.c or Mg.sub.a,Al.sub.b M.sub.c X.sub.d (wherein M stands for at least one element selected from the group consisting of Ga, Sr, and Ba, X stands for at least one element selected from the group consisting of Zn, Ce, Zr, and Ca, and a, a', b, c, and d stand for atomic percents respectively in the ranges of 78.ltoreq.a.ltoreq.94, 75.ltoreq.a'.ltoreq.94, 2.ltoreq.b.ltoreq.12, 1.ltoreq.c.ltoreq.10, and 0.1.ltoreq.d.ltoreq.3). This alloy can be advantageously produced by rapidly solidifying the melt of an alloy of the composition shown above by the liquid quenching method. It is useful as high-strength materials and highly refractory materials owing to its high hardness, strength, and heat-resistance. It is also useful as materials with high specific strength because of light weight and high strength.

Abstract: A magnesium alloy includes 0.1 to 6.0% by weight of Al, 1.0 to 6.0% by weight of Zn, 0.1 to 3.0% by weight of rare earth element (hereinafter referred to as "R.E."), and balance of Mg and inevitable impurities. By thusly adding Al and Zn, the castability, especially the die-castability, is improved. At the same time, the room temperature strength can be improved because the Mg-Al-Zn crystals having a reduced brittleness are dispersed uniformly in the crystal grains. Further, by adding R.E. as aforementioned, the high temperature strength is improved because the Mg-Al-Zn-R.E. crystals having a higher melting point and being less likely to melt are present in the crystal grain boundaries between the Mg-Al-Zn crystals. This magnesium alloy is excellent in castability, can be die-cast, has a higher tensile strength at room temperature, and is satisfactory in high temperature properties and creep properties. Moreover, when the magnesium alloy includes R.E. in a reduced amount of 0.1 to 2.

Abstract: The present invention provides high strength magnesium-based alloys which are composed a fine crystalline structure, the alloys having a composition represented by the general formula (I) Mg.sub.a X.sub.b ; (II) Mg.sub.a X.sub.c M.sub.d, (III) Mg.sub.a X.sub.c Ln.sub.e ; or (IV) Mg.sub.a X.sub.c M.sub.d Ln.sub.e (wherein X is one or more elements selected from the group consisting of Cu, Ni, Sn and Zn; M is one or more elements selected from the group consisting of Al, Si and Ca; Ln is one or more elements selected from the group consisting of Y, La, Ce, Nd and Sm or a misch metal of rare earth elements; and a, b, c, d and e are atomic percentages falling within the following ranges: 40.ltoreq.a.ltoreq.95, 5.ltoreq.b.ltoreq.60, 1.ltoreq.c.ltoreq.35, 1 .ltoreq.d.ltoreq.25 and 3.ltoreq.e.ltoreq.25). Since the magnesium-based alloys have a superior combination of properties of high hardness, high strength and good processability, they are very useful in various industrial applications.

Abstract: There are provided novel anodes for lithium alloy electrochemical cells, and cells based on such anodes. The alloys used comprise one or more active metals which leaves or leave the anode matrix during discharge of the cell, with the alloy remaining in an intermediate variostoichiometric range during both charge and discharge of the cell. The curve of open circuit voltage as well as working condition voltage versus lithium content of the anode slopes, with no appreciable plateau. A specific embodiment relates to such anodes with a solid polymer electrolyte containing a suitable polymer. Another embodiment refers to porous electrodes made by sintering an alloy powder with a binder.

Abstract: A process for forming cast, magnesium based alloy articles having reduced microshrinkage comprising the steps of forming a molten alloy consisting essentially of magnesium together with 4 to 10% by weight aluminum, 0 to 1% by weight manganese, and either 0 to 3% by weight zinc or 0 to 1% by weight silicon, adding to the molten alloy 0.01 to 2% by weight strontium, and molding the molten alloy and solidifying to form a cast alloy article.

Abstract: An alloy based on magnesium with a load at rupture of at least 290 MPa and an elongation at rupture of at least 5%, the alloy comprising by weight, 2 to 11% aluminum, 0 to 1% manganese, 0.1 to 6% strontium, various possible impurities, and the remainder magnesium. The alloy has a structure including a matrix of fine grains of magnesium of a mean size below 3 .mu.m reinforced by intermetallic compounds dispersed homogeneously at the grain boundairies and having a mean size less than 1 .mu.m, the structure remaining unchanged if kept for more than 24 hours at a temperature up to 300.degree. C.

Abstract: Magnesium lithium based alloys prepared by mechanical alloying are disclosed.