891 results about "High entropy alloys" patented technology

A high-strength and ultra heat-resistant high entropy alloy (HEA) matrix composite material and a method of preparing the HEA matrix composite material are provided. The HEA matrix composite material may include at least four matrix elements among Co, Cr, Fe, Ni, Mn, Cu, Mo, V, Nb, Ta, Ti, Zr, W, Si, Hf and Al, and a body-centered cubic (BCC) forming alloy element.

The invention relates to a high-entropy alloy material and a method for preparing the same. The component of the high-entropy alloy material is AlCoCrFeNiTix, wherein x represents a molar ratio, and the value range is between 0.1-0.4. The method for preparing the material comprises: preparing raw materials, adopting the alloy smelting raw materials including Al, Co, Cr, Fe, Ni and Ti, and accurately weighing and proportioning according to the molar ratio; then, purifying oxide on a metal surface; putting the prepared raw materials into a tank in a water-cooling copper-formed mold smelting pool, vacuumizing, filling argon, controlling smelting current to be at about 250 ampere and smelting time for 30-60 seconds, turning an alloy block after alloys are fully mixed, putting an alloy ingot into a tank of a water-cooling copper-formed mold, regulating the smelting current, opening a suction casting air suction valve after the alloys are uniformly smelted, utilizing the negative pressure in a pump for suction casting, and taking out the alloy ingot after an alloy mould is cooled. Compared with the conventional crystalline state alloy, the high-entropy alloy material has relative high thermal stability, hardness, yield strength, breaking tenacity, plastic deformation and work hardening capacity.

The invention discloses high-entropy alloy powder used for spraying, belonging to the technical field of alloy materials. The high-entropy alloy powder comprises five or more than five metal elements and non-metal elements Si and B, wherein addition amount of each metal element accounts for 5-35mol% of the total mole number of the high-entropy alloy powder, content of the added non-metal element Si accounts for 1-20mol% of the total mole number of the high-entropy alloy powder, and the content of the added non-metal element B accounts for 1-10mol% of the total mole number of the high-entropy alloy powder. The high-entropy alloy powder disclosed by the invention and a coating prepared by the high-entropy alloy powder after solidification can avoid precipitation of massive brittle phases after the traditional multi-element alloy is solidified, the coating has a simple fcc or bcc solid solution phase structure, brittleness of the multi-element alloy can be greatly reduced, the coating has multiple excellent performances such as high hardness, thermostability, wear resistance and corrosion resistance, and the high-entropy alloy powder can be applied to multiple surface coating technologies such as thermal spraying and laser cladding and has a wide application prospect.

High-entropy alloy, particularly a precipitation hardening high entropy alloy, is provided as a component material used in electromagnetic, chemical, shipbuilding, mechanical, and other applications, a component material used in extreme environments requiring high strength and good corrosion resistance, and the like.

The invention discloses a biomedical TiZrNbTa high-entropy alloy and a preparation method thereof. The high-entropy alloy has a chemical formula of (TiaZrb)x(NbcTad)yMz; the atomic percents of all components are as follows: a not more than 35 at% and not less than 0, b not more than 35 at% and not less than 0, c not more than 35 at% and not less than 0, d not more than 35 at% and not less than 0, a+b=x, c+d=y, x not more than 70 at% and not less than 5, y not more than 70 at% and not less than 5, M is any one or more in V, Mo, Sn, W, Mn, Al, Fe, Co, Ni, Cu, Cr and Zn, z not more than 35 at% and not less than 0, and x+y+z=100. The alloy is higher in strength, excellent in plasticity and low in Young modulus; the components of the alloy is free of poison on human bodies, or are low-toxicity elements to satisfy the biomedical demands; and the high-entropy alloy is broad in application prospect in the aspect of biomedical materials.

The invention relates to a low thermal expansion coefficient NaMxAlySiz high entropy alloy and a preparation method thereof, the chemical components of the alloy are as follows: 75 <= a <= 100%, 0 <= x <= 10%, 0<= y<= 10%, 0<= z<= 5%, N is arbitrary three or more than three of Ta, Nb, Hf, Zr, Ti, Mo and W, and M is any one or more than one of V, Mn, Fe, Co, Ni and Cr. The alloy phase structure is as follows: a body centered cubic solid solution and an intermetallic compound. The alloy is prepared by arc melting method in three stages. The NaMxAlySiz high entropy alloy has a low thermal expansion coefficient at the temperature in the range of room temperature to 1000 DEG C, the change rate is less than 20%, and the alloy has a broad application prospect in the high temperature industrial field.

The invention provides a high-entropy alloy based composite material and a method for preparation, which relates to an alloy composite material and a method for preparation. The invention provides the high-entropy alloy based composite material and a method for preparation, and a composite material whose comprehensive performance is better than high-entropy alloy. The high-entropy alloy based composite material is made from 1-45 percent of reinforced phase and 55-99 percent of high-entropy alloy base according to the volume percentage. The high-entropy alloy based composite material is prepared by an in-situ spontaneity method or a non- in-situ spontaneity method, and the reinforced phase is prepared in an original position in the high-entropy alloy base or is added from the outer portion. The invention further improves the mechanical properties of materials basing on original high-entropy alloy, and is capable of playing the potentiality of the high-entropy alloy base in maximum limit. The high-entropy alloy based composite material of the invention is capable of being used by various preparation processes, the operation is easy and is easy to operate.

The invention discloses a refractory high-entropy alloy/titanium carbide composite. A refractory high-entropy alloy serves as a matrix phase, and titanium carbide serves as a wild phase; and elements in the refractory high-entropy alloy are selected from at least four kinds of elements of W, Mo, Ta, Nb, V, Ti, Zr, Hf and Cr. A preparation method of the refractory high-entropy alloy/titanium carbide composite comprises the steps that at least four kinds of carbonization metal powder in tungsten carbide, molybdenum carbide, tantalum carbide, niobium carbide, vanadium carbide, the titanium carbide, hafnium carbide, zirconium carbide and chromium carbide are selected and mixed according to the equal molar ratio or the ratio close to the equal molar ratio to form high-entropy matrix powder; and after the high-entropy matrix powder and titanium powder are mixed, alloy mechanization is carried out, then spark plasma sintering or hot-press sintering is carried out, and the refractory high-entropy alloy/titanium carbide composite is obtained. The density and cost of the composite are reduced while the hardness of the composite is improved, excellent high-temperature performance is achieved, and the requirement for manufacturing a high-temperature structural component is met.

The invention provides nitrogen-strengthened TiZrHfNb-based high-entropy alloy and a preparation method thereof. The effect of strengthening interstitial atoms is achieved through the microalloyed N element, and thus the tensile strength of the alloy is remarkably improved. The technique comprises the following steps that metal raw materials including Ti, Zr, Hf and Nb are accurately weighed according to a molar ratio after oxide skin of the metal raw materials is removed through a mechanical method, other adding elements are accurately weighed according to a molar ratio after mechanical skin removal or ultrasonic cleaning or acid pickling is conducted on the adding elements, and the element N is added in a nitride form; and the target alloy is smelted in a non-consumable vacuum electro-arc furnace or a cold crucible shower furnace, and the alloy is obtained through vacuum suction-casting or casting equipment. According to the nitrogen-strengthened TiZrHfNb-based high-entropy alloy and the preparation method thereof, by innovatively adding the element N, the tensile property of the high-entropy alloy is remarkably improved, and particularly the tensile strength of (TiZrHfNb) 98N2.0 high-entropy alloy approximates to 1300 Mpa; and meanwhile, the plastic elongation is 10% or over, and the comprehensive tensile property of the nitrogen-strengthened TiZrHfNb-based high-entropy alloy is remarkably superior to that of existing high-entropy alloy systems.

The invention relates to a high-entropy alloy powder material for supersonic spraying and a manufacturing method thereof. The high-entropy alloy powder material for the supersonic spraying can be obtained and is characterized in that the high-entropy alloy powder material comprises, by atomic percent, 10-20% of Al, 15-20% of Fe, 15-20% of Co, 15-20% of Ni, 15-20% of Cr and 15-20% of Cr, and total percent is 100%. The high-entropy alloy powder material is made by a gas atomization rapid solidification process. Particles of high-entropy alloy powder are spherical or ellipsoidal, a phase structure is composed of a solid solution phase with a simple face-centered cubic or body-centered cubic structure, ingredients and tissues are even, alloy solid solubility is high, and segregation is small. The manufacturing method of the high-entropy alloy powder material is controllable in powder size, good in mobility, low in oxygen content, small in environment pollution, high-entropy alloy coating with excellent combination property or a block high-entropy alloy material with more excellent performance can be obtained through a supersonic spraying process.

The invention provides an aluminum electrolysis inert anode of which the material is a high-entropy alloy. The high-entropy alloy contains 5-10 alloy elements of which the mole ratio can be identical or different; and the atomic percent of each main element is 5-35%. The high-entropy alloy inert anode has the characteristics of favorable high-temperature oxidation resistance, high aluminum electrolysis salt corrosion resistance, high electric conductivity and the like. The high-entropy alloy prepared by the smelting method has the advantages of simple technique and low cost, and is easy for connection. When being used for aluminum electrolysis, the high-entropy alloy can avoid the consumption of the carbon anode and the emission of the CO2 gas, and has the advantages of energy saving and emission reduction.

A multi-component high-entropy alloy includes a composition selected from the following group: VNbTaTiMoWRe, VNbTaTiMoW, VNbTaTiMoRe, VNbTaTiWRe, VNbTaMoWRe, VNbTiMoWRe, VTaTiMoWRe, NbTaTiMoWRe, VNbTaTiMo, VNbTaTiW, VNbTaMoW, VNbTiMoW, VTaTiMoW, NbTaTiMoW, VNbTaTiRe, VNbTaMoRe, VNbTiMoRe, VTaTiMoRe, NbTaTiMoRe, VNbTaWRe, VNbTiWRe, VTaTiWRe, NbTaTiWRe, VNbMoWRe, VTaMoWRe, NbTaMoWRe, VTiMoWRe, NbTiMoWRe, TaTiMoWRe, wherein relative amounts of each element vary by no more than ±15 atomic %.

The invention relates to a microalloyed Ti-Zr-Hf-V-Nb-Ta refractory high-entropy alloy and a preparation method thereof, and belongs to the technical field of metal materials. The refractory high-entropy alloy is endowed with good plasticity and high strength mainly by adjusting the ratio of main components and adding a small amount of microalloyed elements, and the density can be adjusted in a relatively wide range; in addition, during a preparation process, Hf, Nb, Ta and microalloyed elements other than Al at high melting points are pre-alloyed and smelted first, and then Ti, Zr, V and Al are added for final alloying smelting, thereby facilitating uniform mixing of a plurality of components with large differences in melting point, and ensuring the excellent comprehensive performance ofthe prepared refractory high-entropy alloy.

The invention belongs to the field of high-entropy alloy, and relates to multiphase high-entropy alloy with excellent high-temperature corrosion resistance and mechanical performance. The multiphase high-entropy alloy with the excellent high-temperature corrosion resistance and mechanical performance is prepared from the chemical components in percentage by mass(at.%): 5-40% of Fe, 2-30% of Cr, 15-45% of Ni, 3-25% of Al and 0.2-2.0% of Nb; meanwhile, one or more following element can be added: 0-0.5% of C, 0-4% of Mo, 0-35% of Mn, 0-35% of Cu, 0-35% of Co, 0-2.0% of Si, 0-1.0% of Ti, 0-1.0% ofV, 0-0.8% of W and 0-0.5% of Y; through treatment of the high-purity raw materials, blending, smelting in a vacuum induction furnace, moulding shaping and thermal treatment, the multiphase high-entropy alloy is obtained. By adjusting the element contents, a microstructure of FCC, a small amount of BCC and a second phase is achieved, and the comprehensive performance of the high-entropy alloy is obviously superior to the comprehensive performance of existing high-entropy alloy.

The invention relates to a high entropy alloy material and a preparation method thereof, the high entropy alloy composition is TiZrNbVMo[x], wherein x is the molar ratio with a value range of x = 0 ~ 1.0. The preparation method comprises the following steps: using a mechanical method to remove oxide skin of metallurgical raw materials of Ti, Zr, Nb, V and Mo elements, then accurately weighing according to the molar ratio; respectively melting intermediate alloys of MoTi and TiZrNbV in a non self-consumable vacuum electric-arc furnace or a cold crucible suspension furnace, finally putting the intermediate alloys together to melt into target alloys, melting each alloy for more than 3 times to ensure uniformity of the composition; taking a specific mass of a master alloy to preparing a rod or plate sample by use of vacuum suction casting or pouring equipment. Compared with traditional crystal materials, the high entropy alloy disclosed by the invention exhibits high hardness, yield strength and fracture strength, and compared with other high-strength body-core-structure high entropy alloys, the high entropy alloy disclosed by the invention has better plastic deformation ability.

The invention discloses a high-entropy alloy hot-end part manufacturing method of a turbine engine on the basis of selective laser melting and belongs to the technical field of manufacture of hot-end parts of the turbine engine. The high-entropy alloy hot-end part manufacturing method includes firstly selecting five or more of eight kinds of high-melting metal powder of tungsten, titanium, zirconium, hafnium, vanadium, niobium, tantalum and molybdenum, and mixing the powder uniformly according to a certain mole ratio to obtain high-entropy alloy powder; setting up a three-dimensional solid model of a hot-end part of the turbine engine, slicing and layering by software to obtain profile data of various sections, and importing the data into a quick forming device; quickly forming a hot-end part blank of the turbine engine by the SLM technology; thermally treating and finely processing the blank to obtain the high-temperature high-entropy alloy hot-end part of the turbine engine. The formed hot-end part of the turbine engine has high compactness and excellent high temperature performance, has high forming accuracy and surface accuracy and can be quickly and accurately manufactured.

The invention discloses a high-entropy alloy particle reinforced aluminum base composite material and a stirring casting preparation process thereof. The preparation process adopts mechanical alloying to prepare high-entropy alloy powder and screen to obtain high-entropy alloy particles; the high-entropy alloy particles are sealed by adopting an aluminum alloy pipe having the same material with a basal body; the aluminum alloy pipe weighed in a segmented manner is added in the molten basal body; the high-entropy alloy particles are dispersed by a stirring mode; and the high-entropy alloy particle reinforced aluminum base composite material is prepared by a casting process. The high-entropy alloy particles are 0.1-35%; aluminum alloys are 65-99.9%; and the sum of the two is 1. The high-entropy alloy particles in the structure of the prepared composite material are uniformly dispersed; the high-entropy alloy and aluminum alloy interface bonding compatibility is excellent; the strength and the toughness are excellent; the preparation process is simple; the powder has no need to be treated; the cost is low; the stability is good; and the composite material is suitable for large-batch production and standard production, and is excellent in promotion and application prospect.

The invention discloses a multiple boride metal ceramic based on a high-entropy alloy adhesion agent and a preparation method thereof. According to the boride metal ceramic, high-entropy alloy serves as an adhesion phase, multiple boride serves as a hard phase, the high-entropy alloy adhesion phase is composed of at least four of iron, cobalt, nickel, chromium, aluminum, vanadium, titanium, copper, zirconium, molybdenum and manganese, and the content mole ratio of each element is between 5% and 35%. The multiple boride hard phase comprises W2M1B2 or/and Mo2M2B2, wherein M1 and M2 are at least one of Fe, Ni, Co and Cr. The preparation method of the multiple boride metal ceramic based on the high-entropy alloy adhesion agent comprises the steps of ball-milling mixing, forming and low-pressure sintering.

The invention belongs to the technical field of catalytic and energy storage applications of high-entropy alloys, and particularly relates to a nanometer porous high-entropy alloy catalytic electrode,a preparing method thereof and applications of the electrode in bi-functional catalytic water splitting to produce hydrogen and oxygen. The electrode includes, by mole, 15-50% of Ni, 5-20% of a transition metal A, 15-50% of Mo, 5-25% of a transition metal B and 5-40% of Mn, wherein the transition metal A is Fe or Cu, and the transition metal B is one of Co, Ti or W. The alloy electrode has a porous structure, pore diameters range from 2 nm to 500 nm, and the specific surface area is 10-80 m<2>/g. The alloy electrode has advantages of 1) capability of being three-dimensional, porous, self-supporting and no need of any support or adhesive; 2) a large specific surface area and good electrical conductivity; 3) a simple material structure of the non-noble-metal porous high-entropy electrode, rich raw material sources, low prices and controllable preparation conditions; and 4) excellent catalytic performance.

The present disclosure relates to relates generally to metal alloys. The present disclosure relates more particularly to High Entropy Alloys having relatively high strength and relatively low weight. In one aspect, the present disclosure provides a multiple-principal-element high-entropy AlCrTiV metal alloy comprising Al in an amount of 5-50 at %; Cr in an amount of 5-50 at %; Ti in an amount of 5-60 at %; and V in an amount of 5-50 at %, wherein the total amount of Al, Cr, Ti and V is at least 80 at %.

The invention discloses high-entropy alloy powder for laser cladding and a preparation method of a cladding layer. The high-entropy alloy powder comprises Ti, Zr, V, Nb, Ta and Mo. In addition, high-entropy alloy powder which comprises Ti, Zr, V, Nb, Ta, Mo and W, high-entropy alloy powder which comprises Ti, Zr, V, Nb, Ta, Mo, W and Cr and the preparation method of the cladding layer of the high-entropy alloy powder for laser cladding are provided. The high-entropy alloy powder mainly comprises two characteristics, namely, the high-entropy effect and the cocktail effect, each kind of powder exerts respective advantages, and therefore the cladding layer with high hardness, high corrosion resistance, excellent tempering softening resisting performance and excellent structure performance is obtained. Metallurgical bonding is formed by an alloy layer and a matrix through laser cladding; the bonding strength of the cladding layer and the matrix is greatly improved, and the heating speed is high; metal of the cladding layer is not prone to being diluted by the matrix; little heat deformation is generated; and therefore the part rejection rate is low.

A method is described herein for coating the substrate of a component for use in a water cooled nuclear reactor to provide a barrier against corrosion. The method includes providing a zirconium alloy substrate; and coating the substrate with particles selected from the group consisting of metal oxides, metal nitrides, FeCrAl, FeCrAlY, and high entropy alloys. Depending on the metal alloy chosen for the coating material, a cold spray or a plasma arc spray process may be employed for depositing various particles onto the substrate. An interlayer of a different material, such as a Mo, Nb, Ta, or W transition metal or a high entropy alloy, may be positioned in between the Zr-alloy substrate and corrosion barrier layer.

A method for preparing a high entropy alloy thin film coating includes preparing a melt alloy by arc melting raw materials including five or more elements, casting the melt alloy into a mold to form a target, placing the target inside a vacuum chamber of a magnetron sputtering system, and rotatably fixing a substrate inside the vacuum chamber, spaced apart from the target. A high entropy alloy thin film is deposited on the substrate by high vacuum radio frequency sputtering inside the vacuum chamber.

The invention discloses an endogenous nano ceramic reinforcement high-entropy alloy composite material and a preparing method. High-entropy alloy particles serve as a base body phase, and meanwhile, in the high-energy ball milling process, mechanical alloying energy promotes the in-situ reaction to generate nano ceramic TiC, and an endogenous nano ceramic phase is segregated on the solid solution grain boundary, and ceramic phase reinforcement is generated; meanwhile, a flexible face-centered cubic solid solution is extruded to form a deformation twin, and therefore strength and plasticity combination of the high-entropy alloy composite material is achieved; and the high-strength high-toughness high-entropy alloy composite material is prepared, the excellent strength and the excellent strength are kept, and meanwhile, the plasticity of the composite material is improved.

The invention relates to high-entropy alloy powder containing amorphous nanocrystalline and a fabrication method thereof. A high-entropy alloy coating is composed of, by atomic percent, 14.3% of Al, 14.3% of Fe, 14.3% of Co, 14.3% of Ni, 14.3% of Cr, 14.3% of Mo and 14.2% of Si, and the total percentage is 100%. The fabrication method includes the following steps: S1, high-entropy alloy master alloy is fabricated through a medium-frequency induction smelting technique, wherein weighed metallic raw materials are put in a carborundum crucible in sequence and according to melting points from low to high, then the carborundum crucible is vacuumized until the pressure is lower than 6.0*10MPa; argon gas is inflated in the carborundum crucible, the metallic raw materials are melted under the condition that the pressure of the argon air is 3*10-2 Pa, the smelting current is 75A, the melting time is 25min, the alloy composition is segregated with the assistance of electromagnetic stirring, the alloy composition is poured into a magnesia framework after the alloy composition is melted completely, and the high-entropy alloy master alloy which is even in ingredients is obtained; S2, high-entropy alloy powdered materials are fabricated through gas atomization equipment. The fabrication method of the high-entropy alloy powder is used for fabricating the high-entropy alloy coating containing the amorphous nanocrystalline or bulk alloy materials of more superior performance.

The invention discloses high-entropy alloy for sewage degradation and a preparing method thereof. The high-entropy alloy at least comprises four components and at least comprises one active metallic element which is Mg, Ca or Zn, and the components are matched based on an equi-atomic ratio or approximate-equi-atomic ratio. The high-entropy alloy is prepared through mechanical alloying. The technology is simple, smelting is not needed, and preparing cost is low. The high-entropy alloy is different from ordinary high-entropy alloy systems in that a dinitrogen bond is broken through redox reaction between the active zero-valent metallic element and the -N=N- perssad in organic synthetic dyestuff, so that a high rate is realized for azo dyestuff and a remarkable effect is realized for degradation of materials similar to organic synthetic dyestuff, and degradation efficiency is improved by over 250 times compared with commercial iron powder which is in common use currently. The composition range of the high-entropy alloy is wide, and appropriate composition adjustment can be conducted according to actual needs. Meanwhile, the high-entropy alloy is high in structural stability and suitable for various working environments and has broad industrial application prospects in sewage treatment.

The invention provides a high-performance NiCoCrFeMnTi system high-entropy alloy and a preparation method thereof. The NiCoCrFeMnTi system high-entropy alloy comprises, in atomic percent, 5-50% of Ni,5-50% of Co, 5-50% of Cr, 5-50% of Fe, 5-50% of Mn and 5-50% of Ti, and the high-entropy alloy comprises FCC (face center cubic) solid solution, BCC (body center cubic) solid solution and HCP (close-packed hexagonal) structure precipitation phase particles. The NiCoCrFeMnTi system high-entropy alloy is reasonable in component, high in alloy degree, alloy strength and abrasion resistance and goodin high-temperature performance and meets mechanical property requirements of extreme environmental component materials for cutters, bearings, reactors, blast furnace linings, gas turbine hot forgingparts and the like. A preparation process of the alloy is simple and convenient to operate, low in production cost and suitable for industrial production and can prepare large-sized ingot blanks.

The invention relates to a preparation method of a plasma cladding high-entropy alloy coating layer, and belongs to the technical field of a coating layer. The method comprises the following steps: pretreating a base material; selecting metal powder according to the mass percent:5% to 35% of Cr, 5% to 35% of Co, 5% to 35% of Fe, 5% to 35% of Mn, 5% to 35% of Ni and 5% to 35% of Cu; adding a slagging constituent, wherein the slagging constituent comprises the following components by weight percent: 50% to 100% of rutile, 0% to 25% of fluorite and 0% to 25.% of mica; evenly mixing the metal powder and the slagging constituent; and preparing the coating layer by using plasma spray welding equipment. The method is reasonable in process arrangement, simple to implement and moderate in cost, thereby being suitable for popularization. The prepared coating layer is strongly bonded with the base material, and is excellent in surface quality, stable in comprehensive mechanic performance and good in durability.

The invention discloses a high entropy alloy coating as well as a preparation method and application thereof. The coating is prepared from Fe, Co, Cr, Ni, Si, Al and Ti according to the mole ratio of 1 to 1 to 1 to 1 to 1 to (0.5 to 1.5) to (0 to 1). The preparation method comprises the following steps: feeding all element powder into a ball mill according to the mole ratio, carrying out ball milling for 5 to 10 hours under the protection of high-purity argon and uniformly mixing; blending uniformly-mixed element powder into a pasty shape by a binding agent, then uniformly coating the surface of a substrate with a pasty material, and drying; putting the substrate with preset powder on a laser equipment worktable, implementing a cladding technology, and forming the high entropy alloy coating on the surface of the substrate. The high entropy alloy coating prepared by the preparation method disclosed by the invention has solid solution tissues with a body-centered cubic (BCC) phase structure and has the advantages of high hardness (the hardness is about 650 to 950HV0.2) and good properties of wear resistance, heat resistance and corrosion resistance.

The invention relates to a lightweight high-entropy alloy with high strength and high plasticity and a preparation method thereof, and belongs to the field of metal materials and preparation thereof.The high-entropy alloy is mainly composed of Ti, Zr, V, Nb and M, the M is one or more of Al, Hf, Cr, Fe, Mg, Be, Li, Mo, Co, Ni, Si, B, O and N, the method mainly regulates the content of each element to make the alloy have low density, high strength and high plasticity, and the alloy has great application potential in the engineering field; the high-entropy alloy preparation method is simple tooperate, and raw materials used are non-toxic, harmless, safe, reliable, economical and practical.