High-entropy Alloy Particles Research Articles

Mechanical alloying of AlCoCrFe and AlCoCrFeNi: Design and experimental evaluation of medium- and high-entropy alloy particles for cold spraying

The manufacturability of equiatomic high-entropy alloy (HEA) particles with single- and dual-phase crystal structures using the high-energy mechanical alloying (HE-MA) method was explored in this study. Following a material design-of-experiment (DoE) curriculum, particles were synthesized in a planetary mill. Milling times varied while operating under two distinct HE-MA manufacturing regimes: the conventional approach (simultaneous milling of constituent elements) and the sequential method (progressive milling with the introduction of elements in a specific order). Within the conventional regime, equiatomic AlCoCrFe and AlCoCrFeNi blends were milled, focusing on the influence of incorporating nickel (Ni) as a transient element into the base composition. This led to an equivalent particle size distribution ranging from 5 to 100 μm. Notably, the presence of Ni resulted in an increased fraction of the face-centered cubic (FCC) phase, coupled with a simultaneous reduction in grain and crystallite sizes, thereby enhancing the overall material strength. This knowledge was applied to the design and synthesis of a target equiatomic FeNiCoCrAl HEA system. In this context, individual elements were added to the starting/milled Fe + Ni alloy at four-hour intervals, in line with the sequential milling regimen. The results showed an interesting evolution: the conventionally milled AlCoCrFeNi particles exhibited a dual-phase body-centered cubic (BCC) and FCC structure, with a composition of 55% BCC and 45% FCC phase fractions, while the sequentially milled FeNiCoCrAl particles demonstrated a single-phase BCC structure after 24 h of milling.

WC-based cemented carbide with NiFeCrWMo high-entropy alloy binder as an alternative to cobalt

In the current work, a nanostructured NiFeCrWMo high entropy alloy (HEA), synthesized by mechanical alloying, was used as the alternative binder phase for substituting Co to fabricate WC–HEA cemented carbides by electron–beam sintering (EBS). The microstructure and mechanical properties of initial powder mixtures and sintered samples were studied using X-ray diffraction analysis, scanning electron microscopy, energy dispersive X-ray spectroscopy (EDS), indentation technique and compression tests. NiFeCrWMo HEA does not have direct interaction with WC, but at the boundaries between WC and HEA particles (Ni, Fe, Cr)xWyCz complex carbide is formed as result of reduction processes during sintering. The results show that WC–HEA cemented carbide has better performances than the commercial WC–8Co-cemented carbide prepared by EBS. The NiFeCrWMo HEA binder significantly slows down the growth of WC grains due to the sluggish diffusion effect and the formation of a small amount of complex carbide, and, compared to Co, improves the mechanical properties, provides an excellent combination of microhardness (18.9 ± 0.4 GPa) and fracture toughness (11.4 ± 0.3 MPa m1/2). Therefore, the NiFeCrWMo high entropy alloy can potentially become a binder for WC cemented carbides.

Tailoring AlSi7Mg0.3 composite properties with CoCrMoNbTi high entropy alloy particles addition via FSP technique

The present study summarizes the impact of High Entropy Alloy (HEA) CoCrMoNbTi addition on the microstructure, mechanical properties, and wear behavior of an A356 composite developed using the Friction Stir Processing (FSP) technique. The incorporation of HEAs into conventional alloys has gained attention due to their potential to enhance material performance. In this research, A356 aluminum alloy was subjected to FSP for refining grain structure and improving mechanical properties. The addition of HEA CoCrMoNbTi aimed to further enhance these improvements. The microstructural analysis revealed that the FSP process led to significant grain refinement and distribution of CoCrMoNbTi HEA particles within the A356 matrix for A356/2%Co2%Cr2%Mo2%Nb2%Ti composite. The presence of 2%Co2%Cr2%Mo2%Nb2%Ti HEA particles influenced the solidification process, resulting in modified phase formations and improved grain boundaries and interfacial bonding strength. The number of grains was found to be about 1746.19 per square inch at 500 magnifications for A356/2%Co2%Cr2%Mo2%Nb2%Ti processed composite with FSP. Mechanical testing demonstrated notable enhancements in hardness (67.21 % improvement), and tensile strength (37.10 % enhanced), attributed to the combined effects of FSP and 2%Co2%Cr2%Mo2%Nb2%Ti HEA addition. Furthermore, wear behavior was substantially improved, as the 2%Co2%Cr2%Mo2%Nb2%Ti HEA particles contributed to reduced friction and wear rates.

A study on microstructural, mechanical properties and optimization of wear behavior of friction stir processed AlCrCoFeNi High Entropy Alloy reinforced SS410 using response surface methodology

The equimolar High Entropy Alloy (HEA) is incorporated on the surface of SS410 steel to enhance the mechanical properties for the current industrial scenario. The objective of the present work is to make a first attempt at surface modification of SS410 steel with gas atomization synthesized AlCrCoFeNi HEA powder through Friction Stir Processing (FSP). The microhardness and ultimate tensile strength of the FSP-HEA sample are increased by 41.3 % and 39.1 % respectively due to the high degree of refined grains with 2.84 μm and evenly distributed HEA particles. The wear rate of FSP-HEA samples is optimized by response surface methodology with process parameters including applied load, sliding distance, and sliding velocity. The most influential factor and regression model are derived from experimental results that predict the wear rate by the analysis of variance technique. The worn surface of FSP-HEA samples is evaluated by morphological analysis with corresponding induced wear mechanisms. The minimum wear rate is achieved by optimum process parameters along with higher hardness through particle-stimulated nucleation mechanism, Hall-Petch relation, and dynamic recrystallization. The grain refinement, barrier effect, and grain growth hindrance of HEA particles lead to enhancement in the strength of processed HEA samples.

Phase stability and microstructural properties of high entropy alloy reinforced aluminium matrix composites consolidated via spark plasma sintering

Spark plasma sintering (SPS) technique was employed in the consolidation of Cr20Mn20Ni20Cu20Nb10Co10 high entropy alloy (HEA) reinforced aluminium matrix composites. Phase stability and prediction expressions were used in the determination of the powder combination for the HEA. The microstructural analysis showed that an interdiffusion layer was formed between the aluminium matrix and the HEA particles in the sintered composites. Further investigation of the composites by X-ray diffraction (XRD) showed that in addition to the Al matrix phase present, other new phases (BCC, FCC and other intermetallics) were formed as a result of the reaction between the Al matrix and the atoms precipitated from the added HEA during sintering. The density of the HEA-reinforced Al matrix composites decreases with an increase in the wt.% of HEA from 98.6 % for pure aluminium to 98.1 % for the reinforced alloy with 10 % HEA, while the microhardness increases with an increase in the wt.% of the HEA from 35 HV for pure aluminium to 96.0 HV for the alloy reinforced with 10 % HEA.

High-entropy alloy reinforcement in aerospace-grade aluminum 7075: A study of yield strength and elastic modulus

This research aims to identify an appropriate theoretical model for assessing the yield strength and elastic modulus of a composite material consisting of aerospace-grade aluminum 7075 base matrix reinforced with nanocrystalline high-entropy alloy particle (HEAp) composed of CrCuFeMnNi. To fabricate the aluminum composite with a high-entropy alloy base, an innovative casting method was utilized. This method involved the use of a modified bottom-pouring stir casting furnace, integrated with a mechanical supersonic vibrator and a squeeze infiltration setup. The measured theoretical density was higher than the actual density, while the cast specimen exhibited porosity below 6.6%. Scanning electron microscopy (SEM) images revealed the presence of strengthening precipitates and a uniform dispersion of HEAp in the composite. Comparing the developed HEAp composites (CH2, CH3, and CH4) with the base AA7075 cast CH1 (AA7075 + 0 wt.% CrCuFeMnNi-HEAp), the ultimate tensile strength increased by 4% for CH2 (5 wt.% CrCuFeMnNi-HEAp), 21% for CH3 (10 wt.% CrCuFeMnNi-HEAp), and decreased by 9% for CH4 (15 wt.% CrCuFeMnNi-HEAp). Similarly, the yield strength increased by 10% for CH2, 24% for CH3, and decreased by 5% for CH4. The elongation showed an increasing trend of 5% for CH2, 12% for CH3, and 2% for CH4. The flexural strength of the HEAp composites (CH2, CH3, and CH4) increased by 2%, 5%, and 10%, respectively. The proposed model yielded similar yield strength values that closely aligned and were consistent with the experimental value within a deviation of 3.32%. The modified Halpin-Tsai models agreed with experimental value up to a reinforcement volume fraction of 4.89% when calculating the elastic modulus. The proposed model and the Hashin-Shtrikman upper bound also agreed on values up to a 3.32% reinforcement volume fraction.

Mechanical and dry sliding tribological characteristics of aluminium matrix composite reinforced with high entropy alloy particles

This study investigates the CoMoMnNiV high entropy alloy reinforced aluminium matrix composite processed through stir-squeeze casting assisted with an ultrasonic transducer. The mechanical properties, hardness and compressive strength, significantly improved by 45% and 24%, respectively, for 8 wt% HEA compared to the base alloy. The Dry sliding wear analysis revealed that the composites are able to sustain higher load compared to the base alloy and show better wear resistance. A significant reduction in the wear rate was noticed across all HEA content levels, but the highest resistance to wear was demonstrated by composites containing 8 wt% HEAp. A thorough examination of the microstructure, particle distribution, particle-matrix interface, and worn surface was conducted using optical microscopy, SEM, and an optical profilometer.

Microstructure and bending behavior of Ti/Al laminated composites reinforced with high-entropy alloy particles

Ti/Al laminated composites embedded with Al0.5CoCrFeNi high entropy alloy particles were prepared by vacuum hot press sintering process at temperatures of 660 °C and 730 °C. The microstructure of the material was initially examined using XRD, SEM, EDS, EBSD, and TEM techniques. The results of microstructural characterisation show that Al3Ti is the only newly generated phase in the materials prepared at two temperatures. The Al3Ti generated at the temperature of 660 °C is concentrated at the Ti/Al interface position. The Al3Ti generated at a temperature of 730 °C is dispersed in the Al matrix, leading to the formation of numerous Al3Ti/Al interfaces. The residual HEA particles were observed at the sites of oxide aggregation, potentially enhancing the connectivity of the weak interfaces. Following that, the flexural strength and fracture toughness of the composites were evaluated. The results indicate that the materials prepared at a temperature of 730 °C exhibit superior properties. The flexural strength perpendicular to the layer direction reaches 515.89 MPa, while the flexural strength parallel to the layer direction reaches 487.1 MPa. These findings demonstrate clear anisotropy in the flexural performance. Additionally, the material exhibits excellent resistance to crack extension, with a fracture toughness of 32.67 MPa√m.

Artificial age hardening behavior of a squeeze cast CoCrFeMnNi high entropy alloy reinforced 6082-aluminium matrix composite

An Mg-Si-based 6082 aluminium metal matrix composite reinforced with varying concentrations of CoCrFeMnNi high-entropy alloy particles (HEAp) was processed through stir-squeeze casting. The composites were heat treated to examine the age-hardening effect on microstructural changes, fracture mechanism, and an interface between HEAp and aluminium matrix. The evolution of microstructure and topography of fractured surface was investigated through field emission scanning electron microscope with energy dispersive X-ray spectroscopy and transmission electron microscope to characterize the precipitate and intermetallic compound formed at Al/HEAp interface. X-ray diffraction is used to characterize phase evolution. The tensile test was performed to investigate the correlation between tensile strength and artificial ageing. Under the T6 condition, composites exhibit superior mechanical properties such as improved hardness, yield strength (Ys), and ultimate tensile strength (UTS), maximum values were reported as 94.01 HRB, 303 MPa, and 486 MPa respectively for 8 wt% HEA/AA (T6) however, the ductility of composites is less as compared to the as-cast condition which is due to the formation of precipitates.

Investigating the nanoscale hardness/strength properties of high-entropy alloy particles using the nanoindentation technique

Particulate feedstock constitutes the building block in modern day additive manufacturing (AM) era. Cold spray (CS) is a leading process technology to adhere to the AM principle. Therefore, meeting feedstock qualities is of utmost interest to ensure the conformability and competitiveness of the developed industrial modules, including coatings, architectured components, and additively repaired devices. This research advances the understanding of nanoscale hardness/strength properties of particulate matters, specifically of an emerging material class, - high-entropy alloys (HEAs). The feasibility of determining the hardness of mechanically alloyed AlCoCrFeNix (x = 0, 1, 2.1) HEA particles was studied employing the nanoindentation technique. Mechanical properties of milled AlCoCrFeNix particles with varying Ni atomic ratio (x = 0, 1, 2.1) were investigated over different milling times ranging between 4 and 24 h. The study analyzed the impact of mounting resin, pre-determined maximum load, and indentation depth on hardness/strength properties. Results reveal that the hot mounted samples yielded greater accuracy and higher hardness values than compared to those of the cold mounted samples. Additionally, although the low-load sensitivity of AlCoCrFeNix provided consistent nano-scale hardness values across selected loads, their hardness values were found to be depth-dependent. Overall, the study concludes with a methodology for the nano-scale hardness/strength measurement of HEA particles that must account for particle size, sample preparation technique, and nanoindentation test parameters.

Effect of microstructure on mechanical properties of FeCoNiCrAl high entropy alloys particle reinforced Cu matrix surface composite prepared by FSP

In this paper, FeCoNiCrAl high-entropy alloy particles were used as reinforcement to fabricate Cu matrix surface composites by friction stirring processing. The x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) with energy dispersive X-ray spectroscopy (EDS), and electron backscattered diffraction (EBSD) were used to characterize the microstructure and phase composition of the composites. The microhardness tester and universal testing machine were also used to investigate the mechanical properties of the composites. The results demonstrated that the FSP and the adding of HEA particles greatly reduced the average grain size of the composites and increased the percentage of high-angle grain boundaries. A diffusion layer of AlCoCrFeNiCux solid solution with a single face-centered cubic structure was formed between the HEA particles and the Cu matrix. The thickness of the diffusion layer was about 0.9 μm. The microhardness, tensile strength and elongation of the prepared composite increased by 54.86 %, 17.17 % and 8.4 % respectively in comparison to the base Cu. The fracture morphology showed that most of the fracture locations occurred at the junction of diffusion layer and HEA particle, and a small number of fracture locations occurred at HEA particle, which ensured the joint enhancement of plasticity and strength of the composite. The fracture mode of Cu matrix in the composite was mainly ductile fracture. The fracture pattern at the HEA/Cu interface was mainly brittle fracture, accompanied by a small amount of ductile fracture.

Achieving high strength and ductility in high-entropy alloy particle reinforced Al matrix composites with proper proportion of layered structures

Particle spatial distribution has a significant influence on mechanical behavior of particulate reinforced Al matrix composites fabricated by powder metallurgy, which has been systematically investigated in our work. The results showed that, by regulating the milling time for 1 h, 10 h and ≥ 20 h, assisted by hot pressing and hot extrusion processes, three typical distributions of high-entropy alloy (HEA) particles within the Al matrix composites were constructed, i.e., particle agglomerated composite, uniformly distributed composite, and layered structure composite, respectively. After a long-time high energy milling, alloying behavior did not occur between the Al and HEA particles. Moreover, the composite with a proper proportion (19 vol%) of layered structures achieved good combination of yield strength (445.2 MPa) and fracture strain (5.4%), which was ascribed to the strengthening and toughening effect induced by bimodal gain structure. The effect of layered structure on the composite was reflected in two points: first, due to the differences in dislocation density and consumption degree of Cu atoms, the size and density of precipitates in the large particle zones differ from those in the layered structured zones. Second, according to the finite element analysis, though high content of layered structures brought high strength in the composites, it also caused stress concentration, which could reduce the ductility of composites. The dominant strengthening contribution of the layered structure in the composites was derived from the grain boundary strengthening. This research provides a new insight into Al matrix composites with different reinforcing particle distribution.

Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties.

Novel aluminium matrix composites have been fabricated using a powder metallurgy route with reinforcement phase particles of high entropy alloy (HEA) consisting of third transition metals. These new composites are studied as far as their microstructure (SEM, XRD), basic mechanical properties (hardness, elastic modulus) and creep response using nanoindentation techniques are concerned. Wear (sliding wear tests) and corrosion behaviour (in 3.5 wt.% NaCl environment) were also assessed. It was observed that, microstructurally, no secondary intermetallic phases were formed. Hardness and wear resistance seemed to increase with the increase in HEA particles, and in terms of corrosion, the composites exhibited susceptibility to localised forms. Nanoindentation techniques and creep response showed findings that are connected with the deformation nature of both the Al matrix and the HEA reinforcing phase.

Microstructure, mechanical and wear properties of AZ31/CoCrFeNi composites fabricated by friction stir processing

AZ31 magnesium (Mg) alloy composites reinforced with CoCrFeNi high-entropy alloy (HEA) particles were fabricated by friction stir processing (FSP). OM, SEM, EDS, and EBSD were used to characterize the microstructure of composites. Mechanical and wear properties of the composites were investigated by tensile, microhardness, and dry sliding wear tests. The results revealed that HEA particles were homogeneously distributed and exhibited good metallurgical bonding with Mg matrix. The yield strength, ultimate tensile strength, and microhardness of the composites were 80 MPa, 46 MPa, and HV 54.9 higher than those of the base metal (BM), respectively. Fine-grained strengthening was the main strengthening mechanism whose contribution rate on the yield strength was 43.9%. The average friction coefficient of the composites was decreased from 0.331 of BM to 0.240, and the wear mechanism was changed from adhesive wear of BM to abrasive wear.

Microstructure evolution and tensile property of high entropy alloy particle reinforced 316 L stainless steel matrix composites fabricated by laser powder bed fusion

316 L stainless steel is prone to failure under high-strength conditions due to low strength and poor wear resistance, which limits its further application severely. In this study, 2 wt% FeCoNiAlTi high entropy alloy (HEA) powders and 316 L stainless steel powders were mixed to fabricate HEA reinforced 316 L stainless steel matrix composites (MMCs) via laser powder bed fusion (LPBF). The influence of scanning speed on microstructure evolution, the mechanical properties and the strengthening mechanisms have been investigated systematically. The LPBF-fabricated HEA/316 L MMCs consists of both γ-Fe and α-Fe phases. For HEA/316 L MMCs, the grains are refined with the increase of scanning speed and the minimum size is around 0.64 µm. The precipitation of nanoparticles is observed, and the nanoparticles form a strong interfacial bounding with matrix, which indicates the good metallurgical bonding between HEA and 316 L stainless steel. The tensile strength of the LPBF-fabricated composites increases from 1164 MPa to 1276 MPa with increased scanning speed, which is approximately twice as high as the strength of LPBF processed 316 L stainless steel matrix. The contribution of each strengthening mechanism is calculated, and the contribution of particle strengthening is the largest (from 241 MPa to 300 MPa, changing with scanning speed). This work demonstrates the feasibility of using HEA as potential reinforcement in metallic systems and can further enlarge the application field of metallic materials.

Strengthening characteristic and mechanism of AlCoCrFeNi high-entropy alloy particles for Al-Cu dissimilar friction stir lap welded joint

Regarding the light-weight welding application, the strategy of non-tool penetration into lower hard sheet is considered as a promising dissimilar friction stir lap welding (FSLW) process for restriction of tool wear and reduction of welding force. In order to further improve the mechanical properties of the lap joint for such a case, AlCoCrFeNi high-entropy alloy (HEA) particles were selected as reinforcement for the Al-Cu dissimilar FSLW. A novel approach to incorporating HEA particles into lap weld, where a HEA particle-reinforced Al matrix was pre-prepared by FSLW, was proposed to prevent the overflow of particles from weld effectively during Al-Cu FSLW. The strengthening characteristic and mechanism of the HEA particles were systematically explored in this paper. Microstructural analyses indicate that the spherical HEA particles with large size contribute to the grain refinement via particle-stimulated nucleation mechanism, furthermore, nanoscale particles (Al3Ni and Al13Fe4) are formed adjacent to the HEA particles in the Al matrix. The induced grain refinement strengthening and secondary phase strengthening by the HEA particles are responsible for the significant improvement in the mechanical properties of Al-Cu lap joint. This study provides a technological approach and a theoretical foundation for the high-quality dissimilar FSLW used in light-weight manufacturing field.

Enhanced Properties of Ti/Al Laminated Composite Reinforced by High-Entropy Alloy Particles

Novel HEAp-Ti/Al laminated composites embedded with particles of the high-entropy alloy Al0.5CoCrFeNi (HEA) were fabricated by vacuum hot-press sintering at 730 °C. The phase composition and microstructure of the composites were studied with X-ray diffractometer (XRD), scanning electron microscope SEM, energy dispersive spectrometer (EDS), transmission electron microscope (TEM), and electron backscattering diffraction (EBSD) techniques. At this temperature, it has been observed that Al3Ti intermetallic compound is the favored phase and the reaction results in the dispersion of Al3Ti in the original Al layer. A large number of interfaces are formed between Al3Ti and Al. The deformed Al3Ti grains are concentrated in the interface near the Ti side. The mechanical properties, including tensile and compressive properties at room temperature, were analyzed. The tensile test results indicate that the composite exhibited an average tensile strength of 258 MPa and an average yield strain of 9.86%. Compression test results show that when a load perpendicular to the layer is applied, the yield strain and yield stress of the material are 9.67% and 474.09 MPa, respectively. Moreover, under a load parallel to the layer, the material fails due to interfacial debonding.

Enhanced mechanical properties of aluminum matrix composites reinforced with high-entropy alloy particles via asymmetric cryorolling

To achieve higher performance of aluminum matrix composites (AMCs), high-entropy alloy particles (HEAp)-reinforced AMCs sheets were processed via asymmetric rolling (AR, 298 K) and asymmetric cryorolling (ACR, 77 K) methods. The mechanical properties and microstructure of the HEAp/AMCs were analyzed by tensile tests, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results suggest that ACR improved the mechanical properties of HEAp/AMCs to a higher degree than AR. The ultimate tensile strength (UTS) of ACR 3 wt.% HEAp/AMCs reached 253 MPa, which was 13.5% higher than that achieved with AR. ACR resulted in fewer microvoids, finer grain sizes, and higher dislocation density in HEAp/AMC sheets compared to AR. Such a reduction of defects during ACR can be attributed to the volume shrinkage effect of the HEAp/AMCs in the cryogenic environment.

Microstructure and properties of FeCoNiCrMn and Al2O3 hybrid particle-reinforced aluminum matrix composites fabricated by microwave sintering

In this paper, multiscale Al2O3 micro/nanoparticles (0–14 wt%) mixed with FeCoNiCrMn high-entropy alloy (HEA) particles (15 wt%) were used as reinforcements to prepare dual-phase-reinforced aluminum matrix composites (AMCs) through microwave sintering. The strengthening effects of doping different weight fractions of Al2O3 micro/nanoparticles on the microstructure, mechanical properties, and strengthening mechanisms of the mixed-phase particle-reinforced AMCs were investigated. The performance after 11 wt% Al2O3+HEA microparticles was similar to that obtained by adding 2 wt% and 5 wt% Al2O3+HEA nanoparticles. The hardness, yield strength, and compressive strength of the 2 wt% nano-Al2O3 composite were 109.7 HV, 286.5 MPa, and 506.7 MPa, respectively, which were 70.9%, 98.5%, and 94.7% higher than those of the single HEA-reinforced sample. In terms of the strengthening and toughening mechanisms, Orowan strengthening, dislocation strengthening, and thermal mismatch strengthening were the main strengthening mechanisms of particles species mixed in the metal matrix composites. Hall-Petch strengthening and load-transfer effects were mainly attributed to the cross-scale mixing of particles. The hybrid particles of HEA and Al2O3 synergistically delayed interfacial crack propagation. This study provides a new preparation method for high-performance metal matrix composites.

Microstructure and properties of FeCoNi1.5CrCup/Al high-entropy alloy strengthened aluminum matrix composites and finite element simulation

In this study, high-entropy alloy (HEA) particles were used as the reinforced phase to prepare a high strength-toughness FeCoNi1.5CrCup/Al aluminum matrix composite. On the condition of different HEA adding amount, the microstructure and macro/micro mechanical properties together with their relationship are characterized. The finite element simulation is conducted to calculate the macro/micro mechanical properties and acquire a well-fitting with the experimental data. The research shows that when the HEA adding amount is 15 wt%, the particulate size is moderate and evenly distributed in the matrix, the HEA/Al interface is tightly bonded and no impurity phase is formed. The corresponding yield, compressive strengths and maximum compression ratio are 202.6 MPa, 391.2 MPa and 59.7% separately, which reaches an optimized high level. The particulate, dislocation and interface strengthening mechanisms are regarded as the main positive factors. The created "HEA/Al composite micro/macro performance simulation" finite element model provides a new scheme and technical route for the design, preparation and mechanical properties research of new composite materials.