CN107267843A - A kind of high strength and high hardness AlCoCrFeNi high-entropy alloys and preparation method thereof - Google Patents
A kind of high strength and high hardness AlCoCrFeNi high-entropy alloys and preparation method thereof Download PDFInfo
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Abstract
There is high strength and high hardness AlCoCrFeNi high-entropy alloys and preparation method the present invention relates to one kind, the composition of high-entropy alloy is AlaCobCrcFedNie, 20≤a≤30,20≤b≤30,20≤c≤30,20≤d≤30,20≤e≤30.The preparation method of alloy of the present invention includes：By metallurgical raw material Al, Co, Cr, Fe and Ni metallic surface oxide skin, accurate weighing proportioning, prepares alloy for melting and uses in molar ratio；Using non-consumable arc furnace molten alloy, by alloy casting into copper mold, then high-entropy alloy block materials are after heat treatment obtained.The high-entropy alloy of the present invention has high intensity, and high rigidity, therefore, the high-entropy alloy have good application prospect on the part for having pressure-resistant and hardness requirement.
Description
Technical field
Have high strength and high hardness AlCoCrFeNi high there is provided one kind the present invention relates to metal material and its preparation field
Entropy alloy and preparation method thereof, the high-entropy alloy has good application prospect in high pressure resistant and high hard component.
Background technology
With the development of modern industry, higher and higher performance requirement is proposed to metal material：Excellent mechanical performance,
High temperature resistant, corrosion-resistant, soft magnetism etc., although being improved by the new material processing technique such as rapid solidification, Laser Processing
The performance of material, but commercial Application requirement can not be met, traditional metal materials research and development enter bottleneck.
High-entropy alloy is defined as one kind and possesses at least five kinds of essential elements, and every kind of Elements Atom concentration is 5 to 35
At.% alloy.2004, TaiWan, China scholar professor Ye Junwei broke the single host element design pattern of conventional alloys completely,
Start metal material and completely newly study frontier.Conventional metallurgical principle thinks that a variety of alloying elements can be with the alloying element of formation
The compound and very poor mechanical performance of many labyrinths are resulted in, but it is true really not so, and high-entropy alloy is entirely different
In traditional metal materials, it occurs bringing many new phenomenons, including：（1）High entropic effect, is formd with simple BCC/FCC
Institutional framework based on solid solution, the number of phases generated is far smaller than Gibbs phase rule predicted value.High-entropy alloy it is this special
Structure overcome intermetallic compound and the intrinsic fragility of non-crystaline amorphous metal, also give its excellent combination property.It is existing
Research report find that high-entropy alloy has an incomparable excellent performance of some conventional alloys, such as high intensity, high rigidity,
High abrasion corrosion resistance, high thermal resistance, high resistivity etc..（2）With slow diffusion effect, diffusion impervious layer can be effectively done.
This can be effectively prevented from fuel in fusion reactor and be resident and cause embrittlement.High-entropy alloy can make up the room of current non-crystaline amorphous metal
Warm inductile and can not applied at elevated temperature shortcoming.（3）Cocktail effect, is realized by changing the species and content of alloying element
Requirement to alloy microstructure and properties, for example, there is the alloy of tension demand, alloy can add FCC configuration more when designing
Element；The device of aerospace field is used, lightweight element can be added alternately more；In high temperature resistant environment, from difficulty
Molten element is used as alloying constituent element.High-entropy alloy application is colorful colourful, such as high rigidity and the anti-corrosion instrument of wear-resistant temperature-resistant, mould
Tool, cutter；The golf take capel scope of attack, oil pressure atmospheric pressure pole, steel pipe and roll-in cylinder stiff dough；High frequency transformer, the magnetic core of motor,
Carbon shielding, magnetic head, disk, magneto-optic disk, high-frequency soft magnetic thin film material；Chemical plant, the corrosion-proof and high-strength degree material of ships；Turbine leaf
Piece, welding material, the refractory material of heat exchange heat exchanger and high temperature furnace, the fire resisting skeleton in superelevation building, spraying metallic material
Anti-diffusion film and microcomputer electric material etc..Due to application potential diversification, led with wide diversification of industry prospect, therefore more
Lifting of the research and development of first alloy to conventional metallurgical and steel industry is undoubtedly significant.Therefore exploitation has good mechanical property
The AlCoCrFeNi high-entropy alloys of energy, with extremely important meaning.
The content of the invention
It is an object of the invention to develop the AlCoCrFeNi of the high intensity with simple body-centered cubic structure
High-entropy alloy, compressive strength, hardness and the compression strain performance of high-entropy alloy are improved by being heat-treated.
The high-entropy alloy system of the present invention is AlCoCrFeNi, and the constituent element element used is respectively provided with high-melting-point, and in height
It is body-centered cubic structure under temperature.The high entropy with simple body-centered cubic structure can be obtained using the preparation technology of the present invention to close
Gold bullion material.The composition of the high entropy alloy material（Atomic percent）Scope is, 20-30%Al, 20-30%Co, 20-30%Cr, 20-
30%Fe and 20-30%Ni.
The technical solution adopted in the present invention includes：1st, using metallurgical raw material Al, Co, Cr, Fe of purity more than 99.9%
With Ni metals, accurate weighing proportioning is carried out according to mol ratio, alloy is prepared for melt and uses；2nd, removed using sand paper and abrasive machine
Feed metal Al, Co, Cr, Fe and Ni surface scale, and use industrial alcohol ultrasonic oscillation cleaning feed metal；3rd, make
With vacuum non-consumable tungsten electrode arc melting alloy, sample room is vacuumized, when vacuum reaches 1 × 10-3After Pa, it is filled with
Technical argon reaches half of atmospheric pressure until furnace pressure；4th, in order that raw material is preferably well mixed, every time in fusion process
After molten alloy fusing, the electric arc retention time, at 30-60 seconds, is overturn after after alloy block cooling, so repeated 4 times
More than；5th, after the abundant melting of foundry alloy is uniform, furnace cooling obtains high-entropy alloy bulk.6th, by the high-entropy alloy prepared
Block, 500 ~ 600 DEG C are heated to from room temperature, are incubated 3 ~ 5 hours, then are come out of the stove and be quickly cooled to room temperature, and the high entropy needed for obtaining is closed
Gold.
The high-entropy alloy of the present invention has high intensity, high rigidity, and the compressive strength of the alloy is more than 3300MPa, hardness
More than 550HV, compression strain is not less than 30%.Therefore, the high-entropy alloy has good answer in high pressure resistant and high hard component
Use prospect.
Fig. 1 is exemplified with AlCoCrFeNi high-entropy alloys after 600 DEG C × 3h and 500 DEG C × 5h Isothermal treatments after rapid cooling
XRD spectrum.
Fig. 2 is exemplified with compression stress of the AlCoCrFeNi high-entropy alloys after 600 DEG C × 3h Isothermal treatments after rapid cooling-should
Varied curve.
Fig. 3 is exemplified with compression stress of the AlCoCrFeNi high-entropy alloys after 500 DEG C × 5h Isothermal treatments after rapid cooling-should
Varied curve.
Embodiment
1st, the preparation of high-entropy alloy, preparation process is as follows：
1）Raw material prepares：The alloy smelting raw material that the present invention is used is high-purity（≥ 99.9%）Al, Co, Cr, Fe and Ni element, will
The means scale removal such as raw material emery wheel, carries out accurate weigh according to molar ratio and matches, shaken in alcohol with ultrasonic wave
Swing and clean up, used for molten alloy.AlCoCrFeNi high-entropy alloys（HEAs）Nominal composition（at.%）Such as table 1：
The nominal composition of the AlCoCrFeNi high-entropy alloys of table 1
| Element | Al | Cr | Co | Fe | Ni |
| Nominal composition | 25 | 25 | 25 | 25 | 25 |
2）The preparation of high-entropy alloy：The present invention uses vacuum non-consumable arc furnace molten alloy.By the raw material matched during melting
It is placed in water jacketed copper crucible, furnace chamber is evacuated to 1 × 10-3After below Pa, to furnace chamber applying argon gas to half of atmospheric pressure.Often
Before secondary melting subject alloy, first with titanium ingot individually placed in arc-melting crucible 30 seconds as far as possible, it is therefore an objective to remove in furnace chamber
Remaining free oxygen.Subject alloy smelting time 30-60 seconds, by the alloy turn-over in crucible after alloy and body of heater are cooled down
Continue melting, so repeat more than 4 times, to ensure that alloy is well mixed.
Foundry alloy furnace cooling is treated, high-entropy alloy bulk, size Ф 40mm × 15mm is obtained.By the high-entropy alloy prepared
Block, 500 ~ 600 DEG C are heated to from room temperature, are incubated 3 ~ 5 hours, then are come out of the stove and be quickly cooled to room temperature, and the high entropy needed for obtaining is closed
Gold.
, alloy structure and performance.
1）X x ray diffractions（XRD）Test and crystal species analysis
Block materials are cut into after Ф 20mm × 1mm sequins using wire cutting, by coupon successively using 120#, 400#,
800#, 1200#, 1500# and 2000# abrasive paper for metallograph are carefully ground.Metallographic sample is carried out using X x ray diffractometer xs
Crystal species analysis, scanning step 0.03s-1, the θ of scanning angle 2 scope is from 20 ° to 90 °.Experiment gained AlCoCrFeNi alloys
XRD spectrum is as shown in Figure 1.
2）Quasistatic compression is tested
AlCoCrFeNi high-entropy alloy ingot castings will be prepared, will with paper using wire cutting Ф 3mm × 5mm cylindrical sample
Two end faces of cylinder polish flat.Room temperature compression verification is carried out on WDW-50M type universal electrical testing machines, compression speed is
0.2 mm/min, every kind of alloying component is at least chosen 3 samples and tested, the engineering of experiment gained AlCoCrFeNi alloys
Load-deformation curve is as shown in Figures 2 and 3.As can be seen that AlCoCrFeNi high-entropy alloys system has at a relatively high compressive strength
And compression plasticity, its compressive strength is more than 3300MPa, and compression strain is not less than 30%.
3) micro-hardness experiments
AlCoCrFeNi high-entropy alloy ingot castings will be prepared, wire cutting Ф 15mm × 5mm circular disc test specimen, specimen surface is used
After being polished through 400#, 600#, 800#, 1000# water-proof abrasive paper, it is processed by shot blasting using diamond cream as polishing agent.Experiment is used
The N of load 9.8, the load dwell time is 15 s.For the accuracy of experiment, each sample is made a call to 7 hardness and averaged, specifically
It is shown in Table 2.As can be seen that the average hardness of AlCoCrFeNi high-entropy alloys is more than 550HV.
The HV hardness of the AlCoCrFeNi high-entropy alloys of table 2
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| 500℃×5h | 589 | 562 | 557 | 573 | 570 | 569 | 568 |
| 600℃×3h | 581 | 553 | 558 | 563 | 569 | 562 | 590 |
Claims (2)
1. a kind of preparation method of high strength and high hardness AlCoCrFeNi high-entropy alloys, it is characterised in that composition (atomic percent
Than) expression formula be AlaCobCrcFedNie, 20≤a≤30,20≤b≤30,20≤c≤30,20≤d≤30,20≤e≤30；
Preparation process is as follows：
1), using metallurgical raw material Al, Co, Cr, Fe and Ni metal of purity more than 99.9%, carried out according to mol ratio accurate
Proportioning is weighed, alloy is prepared for melt and uses；
2）, raw material A l, Co, Cr, Fe and Ni metallic surface oxide skin is removed using sand paper and abrasive machine, and use industry
EtOH Sonicate ripple concussion cleaning feed metal；
3）Using vacuum non-consumable tungsten electrode arc melting alloy, sample room is vacuumized, when vacuum reaches 1 × 10-3 Pa
Afterwards, technical argon is filled with until furnace pressure reaches half of atmospheric pressure；
4）, in fusion process in order that raw material is preferably well mixed, after each molten alloy fusing, the electric arc retention time exists
30-60 seconds, overturn, so repeated more than 4 times after after alloy block cooling；
5）, after the abundant melting of foundry alloy is uniform, furnace cooling obtains the AlCoCrFeNi high-entropy alloy blocks of button size；
6）By the high-entropy alloy block prepared, 500 ~ 600 DEG C are heated to from room temperature, 3 ~ 5 hours are incubated, then quick cooling of coming out of the stove
To room temperature, the high-entropy alloy needed for obtaining；
2. a kind of preparation method of high strength and high hardness AlCoCrFeNi high-entropy alloys as claimed in claim 1, its feature exists
In nominal composition (atomic percent) expression formula be AlaCobCrcFedNie, a=b=c=d=e=25.
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829008A (en) * | 2017-11-01 | 2018-03-23 | 常州大学 | A kind of BCC+B2 two-phase alloys of fine uniform distribution and preparation method thereof |
| CN108517452A (en) * | 2018-04-24 | 2018-09-11 | 南昌大学 | One kind having both high intensity and soft magnet performance AlCoCuFeNixHigh-entropy alloy and preparation method thereof |
| CN109161710A (en) * | 2018-09-12 | 2019-01-08 | 福州大学 | A kind of high-entropy alloy composite material and preparation method containing self-lubricating phase |
| CN109913673A (en) * | 2019-03-13 | 2019-06-21 | 湘潭大学 | The high-entropy alloy and preparation method thereof of resistance to aluminum melting corrosion |
| CN110172628A (en) * | 2019-04-18 | 2019-08-27 | 中北大学 | A kind of preparation method of the good aluminium ferro-cobalt nickel chromium triangle high-entropy alloy of corrosion resistance |
| CN110229991A (en) * | 2019-07-03 | 2019-09-13 | 青海大学 | A kind of five yuan of high-entropy alloys and preparation method thereof of strong plasticity good match |
| CN110373595A (en) * | 2019-08-06 | 2019-10-25 | 西安工业大学 | A kind of high entropy high temperature alloy of high-performance and preparation method thereof |
| CN111321336A (en) * | 2020-04-08 | 2020-06-23 | 辽宁工业大学 | Eutectic high-entropy alloy with low notch sensitivity and preparation method thereof |
| CN111334698A (en) * | 2020-03-15 | 2020-06-26 | 沈阳工业大学 | Wear-resistant high-entropy alloy containing modulation and demodulation decomposition structure and capable of generating hard phase and preparation method of wear-resistant high-entropy alloy |
| CN111421261A (en) * | 2019-01-10 | 2020-07-17 | 天津大学 | High-entropy alloy solder for electronic packaging assembly brazing and preparation method thereof |
| CN111440980A (en) * | 2020-04-26 | 2020-07-24 | 北京科技大学 | Zirconium-containing high-hardness corrosion-resistant high-entropy alloy material and preparation method thereof |
| CN112458352A (en) * | 2020-11-23 | 2021-03-09 | 北京航空航天大学 | Corrosion-resistant aluminum-transition metal series biphase high-entropy alloy and preparation method thereof |
| CN113025865A (en) * | 2021-03-03 | 2021-06-25 | 北方工业大学 | Preparation method of AlCoCrFeNi series two-phase structure high-entropy alloy |
| CN113235033A (en) * | 2021-05-11 | 2021-08-10 | 北京理工大学 | Method for enhancing hardness of high-entropy alloy through electric pulse treatment |
| CN113373520A (en) * | 2021-04-28 | 2021-09-10 | 潍坊科技学院 | Single crystal high-entropy alloy with wide temperature range, high strength, high plasticity and oxidation resistance and preparation method thereof |
| CN113388771A (en) * | 2021-06-18 | 2021-09-14 | 北京科技大学 | Application of aluminum-cobalt-chromium-iron-nickel high-entropy alloy, application performance characterization and preparation method |
| CN113649571A (en) * | 2021-08-13 | 2021-11-16 | 郑州航空工业管理学院 | Preparation method of high-hardness powder high-entropy alloy |
| CN114032482A (en) * | 2021-11-15 | 2022-02-11 | 中国科学院兰州化学物理研究所 | AlCoCrFeNi high-entropy alloy surface strengthening method |
| CN115125427A (en) * | 2022-07-22 | 2022-09-30 | 上海交通大学 | Wear-resistant CoCrFeNiAlx system high-entropy alloy development method |
| CN115341127A (en) * | 2022-09-20 | 2022-11-15 | 中国科学院兰州化学物理研究所 | Self-lubricating high-entropy alloy and preparation method and application thereof |
| US11624104B2 (en) | 2018-12-28 | 2023-04-11 | Industrial Technology Research Institute | Multicomponent alloy coating |
| RU2811771C2 (en) * | 2021-03-09 | 2024-01-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет" (ФГБОУ ВО "СибГИУ") | HIGH ENTROPY ALLOY OF AlCoCrFeNi COMPOSITION |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757514A (en) * | 2014-01-27 | 2014-04-30 | 沈阳大学 | High-entropy AlCoCrFeNiCuC alloy and preparation method thereof |
| CN106048380A (en) * | 2016-07-26 | 2016-10-26 | 沈阳大学 | High-entropy alloy based composite coating and preparation method thereof |
| CN106637062A (en) * | 2016-09-28 | 2017-05-10 | 太原理工大学 | Method for preparing surface plasma nitrided layer of high-entropy alloy |
-
2017
- 2017-06-28 CN CN201710506126.XA patent/CN107267843A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757514A (en) * | 2014-01-27 | 2014-04-30 | 沈阳大学 | High-entropy AlCoCrFeNiCuC alloy and preparation method thereof |
| CN106048380A (en) * | 2016-07-26 | 2016-10-26 | 沈阳大学 | High-entropy alloy based composite coating and preparation method thereof |
| CN106637062A (en) * | 2016-09-28 | 2017-05-10 | 太原理工大学 | Method for preparing surface plasma nitrided layer of high-entropy alloy |
Non-Patent Citations (3)
| Title |
|---|
| A. MANZONI ET AL.: "Phase separation in equiatomic AlCoCrFeNi high-entropyalloy", 《ULTRAMICROSCOPY 132》 * |
| WOEI-REN WANG ET AL.: "Phases，microstructure and mechanical properties of AlxCoCrFeNi high-entropy alloys at elevated temperatures", 《OURNAL OF ALLOYS AND COMPOUNDS 589》 * |
| 刘其斌等: "《激光制备先进材料及其应用》", 31 May 2016, 冶金工业出版社 * |
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| CN107829008A (en) * | 2017-11-01 | 2018-03-23 | 常州大学 | A kind of BCC+B2 two-phase alloys of fine uniform distribution and preparation method thereof |
| CN108517452A (en) * | 2018-04-24 | 2018-09-11 | 南昌大学 | One kind having both high intensity and soft magnet performance AlCoCuFeNixHigh-entropy alloy and preparation method thereof |
| CN109161710A (en) * | 2018-09-12 | 2019-01-08 | 福州大学 | A kind of high-entropy alloy composite material and preparation method containing self-lubricating phase |
| US11624104B2 (en) | 2018-12-28 | 2023-04-11 | Industrial Technology Research Institute | Multicomponent alloy coating |
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| CN113235033A (en) * | 2021-05-11 | 2021-08-10 | 北京理工大学 | Method for enhancing hardness of high-entropy alloy through electric pulse treatment |
| CN113388771A (en) * | 2021-06-18 | 2021-09-14 | 北京科技大学 | Application of aluminum-cobalt-chromium-iron-nickel high-entropy alloy, application performance characterization and preparation method |
| CN113649571A (en) * | 2021-08-13 | 2021-11-16 | 郑州航空工业管理学院 | Preparation method of high-hardness powder high-entropy alloy |
| CN114032482A (en) * | 2021-11-15 | 2022-02-11 | 中国科学院兰州化学物理研究所 | AlCoCrFeNi high-entropy alloy surface strengthening method |
| CN115125427A (en) * | 2022-07-22 | 2022-09-30 | 上海交通大学 | Wear-resistant CoCrFeNiAlx system high-entropy alloy development method |
| CN115341127A (en) * | 2022-09-20 | 2022-11-15 | 中国科学院兰州化学物理研究所 | Self-lubricating high-entropy alloy and preparation method and application thereof |
| CN115341127B (en) * | 2022-09-20 | 2023-12-15 | 中国科学院兰州化学物理研究所 | Self-lubricating high-entropy alloy and preparation method and application thereof |
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Application publication date: 20171020 |