CN109371309A - A kind of more pivot graded alloy of high-strength and high-plasticity and preparation method thereof - Google Patents
A kind of more pivot graded alloy of high-strength and high-plasticity and preparation method thereof Download PDFInfo
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- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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Abstract
The invention discloses more pivot graded alloy of a kind of high-strength and high-plasticity and preparation method thereof, comprise the steps of: using metallic particles as ingredient, using vacuum arc melting method, preparing alloy cast ingot；Sheet alloy is obtained after alloy cast ingot is carried out hot bundle processing, temperature is 1100 DEG C in hot rolling treatment；Graded alloy plate will be obtained after sheet alloy sliding friction processing；Graded alloy plate is obtained into graded alloy after Overheating Treatment；The processing time of heat treatment is 10 minutes, and temperature is 500 DEG C, and protective gas is argon gas；Has the advantages that high-intensitive and high-ductility using the graded alloy that the application prepares；The method that the application selects sliding friction, technique is simpler than conventional method, is more convenient to operate, and time-consuming short, can prepare bulk plate；The graded alloy that the application prepares is gradient nano structure, and the present invention can first be precipitated a kind of hardening constituent using short distance heat treatment graded alloy plate, promote the intensity of CoCrNi alloy.
Description
[technical field]
The invention belongs to the more pivot graded alloy and its system of field of alloy material more particularly to a kind of high-strength and high-plasticity
Preparation Method.
[background technique]
Conventional alloys material is the alloy material that one or more of materials are added to another matrix formation as needed, thus
Obtain the alloy of Objective.With the development of science and technology, higher and higher to the performance requirement of alloy, traditional alloy can not
Meet growing performance requirement, correlative study and the development of conventional alloys have tended to be saturated.High-entropy alloy is by five kinds
Or five kinds or more constituent elements with equal atomic ratios or connect the single phase solid solution that near atomic ratio mixes.High-entropy alloy has height
Intensity, high rigidity, the excellent properties such as wear-resisting, corrosion-resistant, mechanical behavior under high temperature is good.
The past few decades extensive studies have shown that compared with coarse grain metal/alloy, nanostructure and ultra-fine grain metal/
Alloy has significant physical and mechanical property, especially in terms of intensity and hardness.However nanostructure and ultra-fine grain
Very good mechanical properties are to sacrifice its plasticity as cost.It can modeling while having intensity raising by Surface Nanocrystalline
Property decline it is less, making Nano surface i.e. only on the surface of the material carry out the lesser plastic deformation of deflection, material surface occur plasticity
Deformation, material internal are not influenced to be still open grain structure by deforming.Common method for making Nano surface has surface mechanical wear
The methods of processing, high-energy shot, ultrasonic shot peening and ultrasonic surface processing.The surface of these method for making Nano surface processing is usual
Skin surface is second-rate, and performance is unstable, hinders the extensive use of industry.
[summary of the invention]
The object of the present invention is to provide more pivot graded alloy of a kind of high-strength and high-plasticity and preparation method thereof, to solve
Conventional alloys high intensity and the incompatible problem of high-ductility.
The invention adopts the following technical scheme: a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity, by
Following steps composition:
Using metallic particles as ingredient, using vacuum arc melting method, alloy cast ingot is prepared；
Sheet alloy is obtained after alloy cast ingot is carried out hot bundle processing, temperature is 1100 DEG C in hot rolling treatment；
Graded alloy plate will be obtained after sheet alloy sliding friction processing；
Graded alloy plate is obtained into graded alloy after Overheating Treatment；
The processing time of heat treatment is 10 minutes, and temperature is 500 DEG C, and protective gas is argon gas.
Further, metallic particles is the mixture of cobalt, chromium and nickel, and the ratio of cobalt, chromium and nickel is 1 in its mixture:
1:1。
Further, metallic particles is the mixture of iron, manganese, cobalt and chromium, iron in mixture, manganese, cobalt and chromium ratio be
40:40:10:10。
Further, the sliding friction range of sliding friction processing is 60mm × 180mm, and cycle-index is 100 times, sliding
Pressure is 500N, and sliding speed Vx=0.2m/s, each sliding translation distance is 0.1mm.
Further, melting number is 5 times in the process conditions of vacuum arc melting, and protective gas is argon gas.
Further, sheet alloy is with a thickness of 2-6mm.
Further, the metallic particles used comprises the steps of for cobalt, chromium and nickel:
Sheet alloy is prepared, by metallic particles that purity is 99.99wt% with equal atomic ratios ingredient, i.e. cobalt, chromium and nickel
Proportion is 1:1:1, and with vacuum arc melting method, melting number is 5 times in the process conditions of vacuum arc melting, and protective gas is
Argon gas prepares CoCrNi alloy cast ingot；
Hot rolling treatment obtains sheet alloy, plate thickness 2mm, hot rolling treatment after alloy cast ingot is carried out hot bundle processing
Middle temperature is 1100 DEG C, and the intensity for preparing the CoCrNi graded alloy plate obtained is 250MPa, plasticity 88%；
Sliding friction processing, sliding friction process conditions are as follows: sliding friction range: 60mm × 180mm, sliding circulation time
Number: 100 times, sliding pressure: 500N, sliding speed: Vx=0.2m/s, each sliding translation distance: 0.1mm；
The intensity for preparing the CoCrNi graded alloy obtained is 700MPa, plasticity 56%；
Short distance heat treatment, short distance heat treatment condition are as follows: protective gas: argon gas, temperature: 500 DEG C, the time: 10 minutes；
The intensity for preparing the CoCrNi graded alloy obtained is 1000MPa, plasticity 57%.
Further, the metallic particles used comprises the steps of for cobalt, chromium and nickel:
Sheet alloy is prepared, by metallic particles that purity is 99.99wt% with equal atomic ratios ingredient, i.e. cobalt, chromium and nickel
Proportion is 1:1:1, prepares single-phase CoCrNi alloy cast ingot with vacuum arc melting method with vacuum arc melting method.Vacuum electric
Melting number is 5 times in the process conditions of arc melting, and protective gas is argon gas, prepares CoCrNi alloy cast ingot；
Hot rolling treatment obtains sheet alloy, plate thickness 5mm, hot rolling treatment after alloy cast ingot is carried out hot bundle processing
Middle temperature is 1100 DEG C, and the intensity for preparing the CoCrNi graded alloy plate obtained is 250MPa, plasticity 88%；
Sliding friction processing, sliding friction process conditions are as follows: sliding friction range: 60mm × 180mm, sliding circulation time
Number: 100 times, sliding pressure: 500N, sliding speed: Vx=0.2m/s, each sliding translation distance: 0.1mm；
The intensity for preparing the CoCrNi graded alloy obtained is 560MPa, plasticity 72%；
Short distance heat treatment, short distance heat treatment condition are as follows: protective gas: argon gas, temperature: 500 DEG C, the time: 10 minutes；
The intensity for preparing the CoCrNi graded alloy obtained is 800MPa, plasticity 73%.
The invention also discloses a kind of graded alloy of high-strength and high-plasticity, by the above-mentioned prepared graded alloy obtained,
The intensity of graded alloy is 570-1000MPa, plasticity 57-88%.
The beneficial effects of the present invention are: having using the graded alloy that the present invention prepares high-intensitive and high-ductility excellent
Point；The method that the application selects sliding friction, technique is simpler than conventional method, is more convenient to operate, and time-consuming short, can make
Standby bulk plate；The graded alloy that the application prepares is gradient nano structure, and material surface is that average grain size is tens
The nanocrystalline deformed region of nanometer, as the increase average grain size of depth is consequently increased；The undeformed area of material center
Tissue is the equiax crystal of initial state, and average grain size is several hundred microns；The present invention uses the advantages of short distance heat treatment to be,
In the complete short distance heat treatment process of sliding friction, a kind of hardening constituent can be first precipitated in graded alloy plate, promote the strong of CoCrNi alloy
Degree, with the extension of heat treatment time, this hardening constituent can dissolve or grow up, mechanical property degradation, and in the prior art
Heat treatment is compared, and the time of prior art heat treatment is 2 hours or more, and this hardening constituent can dissolve or grow up, and in this Shen
Please in this hardening constituent will not dissolve or grow up, mechanical property will not degenerate, and the presence of this hardening constituent will be mentioned further
The intensity and plasticity of high CoCrNi alloy.
[Detailed description of the invention]
Fig. 1 is the stress strain curve of the CoCrNi graded alloy of the high intensity of the preparation of example 1 of the invention, high-ductility；
Fig. 2 is the stress strain curve being heat-treated after sliding friction in example 1 of the invention；
The position Fig. 3 example 1CoCrNi graded alloy section metallic phase image of the invention.
[specific embodiment]
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The invention discloses more pivot graded alloy of a kind of high-strength and high-plasticity and preparation method thereof, by following steps group
At:
Using metallic particles as ingredient, using vacuum arc melting method, alloy cast ingot is prepared；The technique of vacuum arc melting
Melting number is 5 times in condition, and plate thickness is greater than 2.5mm, and protective gas is argon gas；
Sheet alloy is obtained after alloy cast ingot is carried out hot bundle processing, temperature is 1100 DEG C in hot rolling treatment；
Graded alloy plate will be obtained after sheet alloy sliding friction processing；Sliding friction processing sliding friction range be
60mm × 180mm, cycle-index are 100 times, sliding pressure 500N, sliding speed Vx=0.2m/s, each sliding translation
Distance is 0.1mm.
Graded alloy plate is obtained into graded alloy after Overheating Treatment；The processing time of heat treatment is 10 minutes, temperature
It is 500 DEG C, protective gas is argon gas.
The invention also discloses a kind of more pivot graded alloy of high-strength and high-plasticity, prepare the ladder obtained by the above method
Alloy is spent, intensity is 570-1000MPa, plasticity 57-88% in the best mechanical property of CoCrNi graded alloy at room temperature,
The mechanical property of CoCrNi graded alloy under cryogenic is shown better than other high-entropy alloys and conventional alloy, this alloy
Writing performance is mainly the formation due to deformation twin and deformation induced trans- formation.Other than excellent cryogenic property, closed with other height
Gold is compared with Conventional alloys, and the friction also with higher of CoCrNi alloy is answered.
Embodiment 1
The metallic particles that the present embodiment uses comprises the steps of for cobalt, chromium and nickel:
Step 1: preparing sheet alloy
It is the metallic particles of 99.99wt% to wait atomic ratios ingredient by purity, i.e. the proportion of cobalt, chromium and nickel is 1:1:1, is used
Vacuum arc melting method, melting number is 5 times in the process conditions of vacuum arc melting, and protective gas is argon gas, is prepared
CoCrNi alloy cast ingot.
Step 2: hot rolling treatment
Alloy cast ingot is carried out to obtain sheet alloy after hot bundle processing, plate thickness 2mm, temperature is in hot rolling treatment
1100℃。
The intensity for preparing the CoCrNi graded alloy obtained is 250MPa, plasticity 88%.
Step 3: sliding friction processing
Sliding friction process conditions are as follows:
Sliding friction range: 60mm × 180mm
Sliding cycle-index: 100 times
Sliding pressure: 500N
Sliding speed: Vx=0.2m/s
Each sliding translation distance: 0.1mm
The intensity for preparing the CoCrNi graded alloy obtained is 700MPa, plasticity 56%；
Step 4: short distance heat treatment
Short distance heat treatment condition are as follows:
Protective gas: argon gas
Temperature: 500 DEG C
Time: 10 minutes
As shown in Figure 1,2 and 3, the intensity for preparing the CoCrNi graded alloy obtained is 1000MPa, plasticity 57%.
The advantages of being heat-treated using short distance is, in the complete short distance heat treatment process of sliding friction, graded alloy plate can be first
Be precipitated a kind of hardening constituent, promote the intensity of CoCrNi alloy, with the extension of heat treatment time, this hardening constituent can dissolve or
It grows up, mechanical property degradation, compared with heat treatment in the prior art, the time of prior art heat treatment is 2 hours or more, this
Kind of hardening constituent, which can dissolve, perhaps grows up and this hardening constituent will not dissolve or grow up in this application, and mechanical property will not move back
Change, the presence of this hardening constituent will further increase the intensity and plasticity of CoCrNi alloy.
Embodiment 2
The metallic particles that the present embodiment uses comprises the steps of for cobalt, chromium and nickel:
Step 1: preparing sheet alloy
It is the metallic particles of 99.99wt% to wait atomic ratios ingredient by purity, i.e. the proportion of cobalt, chromium and nickel is 1:1:1, is used
Vacuum arc melting method prepares single-phase CoCrNi alloy cast ingot with vacuum arc melting method.The technique item of vacuum arc melting
Melting number is 5 times in part, and protective gas is argon gas, prepares CoCrNi alloy cast ingot.
Step 2: hot rolling treatment
Alloy cast ingot is carried out to obtain sheet alloy after hot bundle processing, plate thickness 5mm, temperature is in hot rolling treatment
1100℃。
The intensity for preparing the CoCrNi graded alloy plate obtained is 250MPa, plasticity 88%.
Step 3: sliding friction processing
Sliding friction process conditions are as follows:
Sliding friction range: 60mm × 180mm
Sliding cycle-index: 100 times
Sliding pressure: 500N
Sliding speed: Vx=0.2m/s
Each sliding translation distance: 0.1mm
The intensity for preparing the CoCrNi graded alloy obtained is 560MPa, plasticity 72%；
Step 4: short distance heat treatment
Short distance heat treatment condition are as follows:
Protective gas: argon gas
Temperature: 500 DEG C
Time: 10 minutes
The intensity for preparing the CoCrNi graded alloy obtained is 800MPa, plasticity 73%.
The advantages of being heat-treated using short distance is, in the complete short distance heat treatment process of sliding friction, graded alloy plate can be first
Be precipitated a kind of hardening constituent, promote the intensity of CoCrNi alloy, with the extension of heat treatment time, this hardening constituent can dissolve or
It grows up, mechanical property degradation, compared with heat treatment in the prior art, the time of prior art heat treatment is 2 hours or more, this
Kind of hardening constituent, which can dissolve, perhaps grows up and this hardening constituent will not dissolve or grow up in this application, and mechanical property will not move back
Change, the presence of this hardening constituent will further increase the intensity and plasticity of CoCrNi alloy.
Embodiment 3
The metallic particles that the present embodiment uses comprises the steps of for cobalt, chromium and nickel:
Step 1: preparing sheet alloy
It is the metallic particles of 99.99wt% to wait atomic ratios ingredient by purity, i.e. the proportion of cobalt, chromium and nickel is 1:1:1, is used
Vacuum arc melting method prepares single-phase CoCrNi alloy cast ingot with vacuum arc melting method.The technique item of vacuum arc melting
Melting number is 5 times in part, and protective gas is argon gas, prepares CoCrNi alloy cast ingot.
Step 2: hot rolling treatment
Alloy cast ingot is carried out to obtain sheet alloy after hot bundle processing, plate thickness 6mm, temperature is in hot rolling treatment
1100℃。
The intensity for preparing the CoCrNi graded alloy plate obtained is 250MPa, plasticity 88%.
Step 3: sliding friction processing
Sliding friction process conditions are as follows:
Sliding friction range: 60mm × 180mm
Sliding cycle-index: 100 times
Sliding pressure: 500N
Sliding speed: Vx=0.2m/s
Each sliding translation distance: 0.1mm
The intensity for preparing the CoCrNi graded alloy obtained is 400MPa, plasticity 87%；
Step 4: short distance heat treatment
Short distance heat treatment condition are as follows:
Protective gas: argon gas
Temperature: 500 DEG C
Time: 10 minutes
The intensity for preparing the CoCrNi graded alloy obtained is 570MPa, plasticity 88%.
The advantages of being heat-treated using short distance is, in the complete short distance heat treatment process of sliding friction, graded alloy plate can be first
Be precipitated a kind of hardening constituent, promote the intensity of CoCrNi alloy, with the extension of heat treatment time, this hardening constituent can dissolve or
It grows up, mechanical property degradation, compared with heat treatment in the prior art, the time of prior art heat treatment is 2 hours or more, this
Kind of hardening constituent, which can dissolve, perhaps grows up and this hardening constituent will not dissolve or grow up in this application, and mechanical property will not move back
Change, the presence of this hardening constituent will further increase the intensity and plasticity of CoCrNi alloy.
Embodiment 4
For the metallic particles that the present embodiment uses for iron, manganese, cobalt and chromium, preparation obtains a kind of high-strength and high-plasticity
Fe40Mn40Co10Cr10Gradient high-entropy alloy, comprises the steps of:
Step 1: preparing sheet alloy
Using purity for 99.99wt% metallic particles as ingredient, metallic particles be iron, manganese, cobalt and chromium mixture, iron,
The ratio of manganese, cobalt and chromium prepares Fe with vacuum arc melting method for 40:40:10:1040Mn40Co10Cr10Alloy cast ingot, very
Melting number is 5 times in the process conditions of empty electric arc melting, and protective gas is argon gas, prepares Fe40Mn40Co10Cr10Alloy casting
Ingot.
Step 2: hot rolling treatment
Alloy cast ingot is carried out to obtain sheet alloy after hot bundle processing, plate thickness 2.5mm, temperature is in hot rolling treatment
1100℃。
Prepare the Fe obtained40Mn40Co10Cr10Graded alloy.
Step 3: sliding friction processing
Sliding friction process conditions are as follows:
Sliding friction range: 60mm × 180mm
Sliding cycle-index: 100 times
Sliding pressure: 500N
Sliding speed: Vx=0.2m/s
Each sliding translation distance: 0.1mm
Step 4: short distance heat treatment
Short distance heat treatment condition are as follows:
Protective gas: argon gas
Temperature: 500 DEG C
Time: 10 minutes
Prepare the Fe obtained40Mn40Co10Cr10Graded alloy
The advantages of being heat-treated using short distance is, in the complete short distance heat treatment process of sliding friction, graded alloy plate can be first
A kind of hardening constituent is precipitated, promotes Fe40Mn40Co10Cr10The intensity of alloy, with the extension of heat treatment time, this hardening constituent meeting
It dissolves or grows up, mechanical property degradation, compared with heat treatment in the prior art, the time of prior art heat treatment is 2 small
When more than, this hardening constituent, which can dissolve, perhaps grows up and this hardening constituent will not dissolve or grow up in this application, mechanical property
It can will not degenerate, the presence of this hardening constituent will further increase Fe40Mn40Co10Cr10The intensity and plasticity of alloy.
Claims (9)
1. a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity, which is characterized in that comprise the steps of:
Using metallic particles as ingredient, using vacuum arc melting method, alloy cast ingot is prepared；
Sheet alloy is obtained after alloy cast ingot is carried out hot bundle processing, temperature is 1100 DEG C in the hot rolling treatment；
Graded alloy plate will be obtained after sheet alloy sliding friction processing；
Graded alloy plate is obtained into graded alloy after Overheating Treatment；
The processing time of the heat treatment is 10 minutes, and temperature is 500 DEG C, and protective gas is argon gas.
2. a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity according to claim 1, feature exist
In the metallic particles is the mixture of cobalt, chromium and nickel, and the ratio of cobalt, chromium and nickel is 1:1:1 in its mixture.
3. a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity according to claim 1, feature exist
In the mixture that, the metallic particles is iron, manganese, cobalt and chromium, the mixture iron, manganese, cobalt and chromium ratio be 40:40:
10:10。
4. a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity according to claim 2 or 3, feature
It is, the sliding friction range of the sliding friction processing is 60mm × 180mm, and cycle-index is 100 times, and sliding pressure is
500N, sliding speed Vx=0.2m/s, each sliding translation distance is 0.1mm.
5. a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity according to claim 4, feature exist
In melting number is 5 times in the process conditions of the vacuum arc melting, and protective gas is argon gas.
6. a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity according to claim 5, feature exist
In the sheet alloy is with a thickness of 2-6mm.
7. a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity according to claim 1, feature exist
In the metallic particles used comprises the steps of for cobalt, chromium and nickel:
Sheet alloy is prepared, is the metallic particles of 99.99wt% to wait atomic ratios ingredient, the i.e. proportion of cobalt, chromium and nickel by purity
For 1:1:1, with vacuum arc melting method, melting number is 5 times in the process conditions of vacuum arc melting, and protective gas is argon
Gas prepares CoCrNi alloy cast ingot；
Hot rolling treatment obtains sheet alloy, plate thickness 2mm, hot rolling treatment medium temperature after alloy cast ingot is carried out hot bundle processing
Degree is 1100 DEG C, and the intensity for preparing the CoCrNi graded alloy plate obtained is 250MPa, plasticity 88%；
Sliding friction processing, sliding friction process conditions are as follows: sliding friction range: 60mm × 180mm, sliding cycle-index: 100
It is secondary, sliding pressure: 500N, sliding speed: Vx=0.2m/s, each sliding translation distance: 0.1mm；
The intensity for preparing the CoCrNi graded alloy plate obtained is 700MPa, plasticity 56%；
Short distance heat treatment, short distance heat treatment condition are as follows: protective gas: argon gas, temperature: 500 DEG C, the time: 10 minutes；
The intensity for preparing the CoCrNi graded alloy obtained is 1000MPa, plasticity 57%.
8. a kind of preparation method of more pivot graded alloy of high-strength and high-plasticity according to claim 1, feature exist
In the metallic particles used comprises the steps of for cobalt, chromium and nickel:
Sheet alloy is prepared, is the metallic particles of 99.99wt% to wait atomic ratios ingredient, the i.e. proportion of cobalt, chromium and nickel by purity
For 1:1:1, single-phase CoCrNi alloy cast ingot is prepared with vacuum arc melting method with vacuum arc melting method.Vacuum arc is molten
Melting number is 5 times in the process conditions of refining, and protective gas is argon gas, prepares CoCrNi alloy cast ingot；
Hot rolling treatment obtains sheet alloy, plate thickness 5mm, hot rolling treatment medium temperature after alloy cast ingot is carried out hot bundle processing
Degree is 1100 DEG C, and the intensity for preparing the CoCrNi graded alloy plate obtained is 250MPa, plasticity 88%；
Sliding friction processing, sliding friction process conditions are as follows: sliding friction range: 60mm × 180mm, sliding cycle-index: 100
It is secondary, sliding pressure: 500N, sliding speed: Vx=0.2m/s, each sliding translation distance: 0.1mm；
The intensity for preparing the CoCrNi graded alloy plate obtained is 560MPa, plasticity 72%；
Short distance heat treatment, short distance heat treatment condition are as follows: protective gas: argon gas, temperature: 500 DEG C, the time: 10 minutes；
The intensity for preparing the CoCrNi graded alloy obtained is 800MPa, plasticity 73%.
9. a kind of more pivot graded alloy of high-strength and high-plasticity, which is characterized in that described in being obtained as prepared by claim 1
The intensity of graded alloy is 570-1000MPa, plasticity 57-88%.
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| CN110157970A (en) * | 2019-06-11 | 2019-08-23 | 沈阳航空航天大学 | A kind of high strength and ductility CoCrNi medium entropy alloy and preparation method thereof |
| CN111394636A (en) * | 2020-03-24 | 2020-07-10 | 太原理工大学 | High-strength high-plasticity high-entropy alloy with martensite phase transformation and preparation method thereof |
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| CN102321791A (en) * | 2011-09-19 | 2012-01-18 | 西北有色金属研究院 | A kind of method of utilizing sliding friction to realize making Nano surface of metal material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157970A (en) * | 2019-06-11 | 2019-08-23 | 沈阳航空航天大学 | A kind of high strength and ductility CoCrNi medium entropy alloy and preparation method thereof |
| CN110157970B (en) * | 2019-06-11 | 2021-01-05 | 沈阳航空航天大学 | High-strength-ductility CoCrNi intermediate-entropy alloy and preparation method thereof |
| CN111394636A (en) * | 2020-03-24 | 2020-07-10 | 太原理工大学 | High-strength high-plasticity high-entropy alloy with martensite phase transformation and preparation method thereof |
| CN111394636B (en) * | 2020-03-24 | 2021-06-15 | 太原理工大学 | High-strength high-plasticity high-entropy alloy with martensite phase transformation and preparation method thereof |
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