CN110423934A - A kind of Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility, preparation method and applications - Google Patents
A kind of Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility, preparation method and applications Download PDFInfo
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Abstract
A kind of Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility, preparation method and applications, the invention belongs to technical field of magnetic materials, and in particular to a kind of Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility, preparation method and applications.The invention solves brittleness present in existing Ni-Mn-Sn ferromagnetic shape memory alloys system greatly and be difficult to the problem of meeting compared with using under high environment temperature.Chemical general formula is Ni48‑xCoxMn37Sn9Cu6, wherein x is molar fraction, and the sum of molal quantity of element is 100 in 0 x≤12 < and the alloy.Method: one, it stocks up；Two, electric arc melting；Three, Homogenization Treatments finally obtain Ni48‑xCoxMn37Sn9Cu6Magnetic refrigeration alloy material.
Description
Technical field
The invention belongs to technical field of magnetic materials, and in particular to a kind of Ni-Co-Mn- of the big magnetothermal effect of high temperature high-ductility
Sn-Cu alloy, preparation method and applications.
Background technique
High efficient energy sources using and environmental protection as the basis of various countries' strategy of sustainable development, it has also become the coke of global concern
Point.Currently, the challenge that vapour compression refrigeration technology is faced with alternative refrigerant, improves refrigerating efficiency.Find the refrigeration skill of substitution
Art is extremely urgent.In recent years, magnetic Refrigeration Technique has proved to be a kind of up-and-coming environment-friendly type, the Refrigeration Technique of high energy efficiency.
In the development process of magnetic Refrigeration Technique, Ni-Mn-Sn ferromagnetic shape memory alloys have the reversed martensite of direct magnetic field induction
Phase transformation (MFIRMT) and good magnetothermal effect (MCE), have broad application prospects in High Efficiency Solid-State refrigerating field.In addition to needing
Have except larger MCE, good mechanical property is another necessary factors, so as to be processed into required shape
Shape to improve heat exchange performance, while can have longer service life.But existing Ni-Mn-Sn base magnetic memorial alloy
Mechanical property it is generally poor, seriously constrain its development and application.In addition, the operating temperature of this kind of alloy is generally lower, it is difficult
To meet compared with the use condition under high environment temperature.Up to the present, existing Ni-Mn-Sn base magnetic refrigerating material can not be same
When solve all the problems above.Therefore, it develops a kind of with huge MCE, higher operating temperature and excellent mechanical property
Novel Ni-Mn-Sn base magnetic refrigerating material have important practical value.
Summary of the invention
It greatly and is difficult to full the present invention is to solve brittleness present in existing Ni-Mn-Sn ferromagnetic shape memory alloys system
Foot compared with being used under high environment temperature the problem of, and provide a kind of big magnetothermal effect of high temperature high-ductility Ni-Co-Mn-Sn-Cu alloy,
Preparation method and applications.
A kind of chemical general formula of the Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility is Ni48- xCoxMn37Sn9Cu6, wherein x is molar fraction, and the sum of molal quantity of element is 100 in 0 x≤12 < and the alloy.
Specific embodiment 2: a kind of Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility of present embodiment
Preparation method is completed by the following steps:
One, it stocks up: being Ni according to chemical general formula48-xCoxMn37Sn9Cu6Carry out ingredient, wherein x be molar fraction, 0 < x≤
12 and the alloy in the sum of the molal quantity of element be 100, weigh nickel block, manganese block, block tin, cobalt block and copper billet respectively as former
Material；
Two, the weighed raw material of step 1 is placed in melting kettle, carries out electric arc melting and obtains Ni-Co-Mn-Sn-Cu
Button ingot casting；
Three, by Ni-Co-Mn-Sn-Cu button ingot casting mechanically polish removal surface impurity, then first using acetone cleaning 2~
Alcohol washes are used again 2~3 times and be encapsulated into vacuum degree as 10 for 3 times-3In the quartz ampoule of Pa, at 1073K keep the temperature 36~48h into
Row Homogenization Treatments, and in ice water of quenching, finally obtain Ni48-xCoxMn37Sn9Cu6Magnetic refrigeration alloy material.
The invention has the advantages that:
1, the present invention is with Ni48Mn37Sn15For basic alloying component, using the method for two kinds of element codopes, finally in Ni-
The operating temperature and mechanical property of alloy material synchronously greatly improved in Co-Mn-Sn-Cu alloy, while obtaining huge
Magnetic entropy become.
2, the present invention significantly improves the Curie temperature of Ni-Mn-Sn based alloy using Co doping, is greatly improved using Cu doping
The martensitic transformation temperature of alloy, the operating temperature of alloy is mobile to high temperature direction, widen the operation temperature area of alloy；Simultaneously
Co, Cu element codope improve the saturation magnetization of alloy austenite phase, improve the magnetic heating performance of alloy；Wherein, x=
When 8 under the magnetic field 7T, Ni40Co8Mn37Sn9Cu6Alloy becomes in the huge magnetic entropy that 344K obtains 34.8J/kgK, therefore, this kind of
Ni-Co-Mn-Sn-Cu magnetic refrigeration alloy material can be used under hot environment, and have good refrigeration effect simultaneously.
3, present invention addition Co, Cu element significantly improves the compressed rupture strength and breaking strain of Ni-Mn-Sn alloy,
Gas main reason is that: the presence of second phase particles hinders the grain boundary fracture of alloy, plasticity significantly improves, and breaking strain
Increase so that the breaking strength of alloy significantly improves therewith.As x=8, Ni40Co8Mn37Sn9Cu6The compressed rupture strength of alloy
It is up to 1072.0MPa and 11.9% respectively with compression strain, the invention is to the reality for widening Ni-Mn-Sn Gilbert damping term
Using with important theory significance and engineering application value.
4, the ferromagnetic shape memory alloy Ni provided by the invention with huge magnetothermal effect40Co8Mn37Sn9Cu6Exhibition
Reveal excellent comprehensive performance, is ideal non-Rare-Earth Magnetic refrigeration candidate material.Meanwhile the regulation of codope is utilized in this patent
Means have generality rule, are equally applicable to all Ni-Mn base magnetic memorial alloys.
Detailed description of the invention
Fig. 1 is the DSC curve of magnetic refrigeration alloy material prepared by embodiment one；
Fig. 2 is the DSC curve of magnetic refrigeration alloy material prepared by embodiment two；
Fig. 3 is the DSC curve of magnetic refrigeration alloy material prepared by embodiment three；
Fig. 4 is thermomagnetization curve of the magnetic refrigeration alloy material of the preparation of embodiment one to four under the magnetic field 100Oe；Wherein 1 is
Embodiment one, 2 be embodiment two, and 3 be embodiment three, and 4 be example IV；
Fig. 5 is the isothermal magnetization curve of magnetic refrigeration alloy material prepared by embodiment three；
Fig. 6 is magnetic entropy varied curve of the magnetic refrigeration alloy material of the preparation of embodiment three under different external magnetic fields；Wherein 1 is
1.0T, 2 be 3.0T, and 3 be 5.0T, and 4 be 7.0T；
Fig. 7 is magnetic refrigeration alloy material compression failure stress-strain at room temperature prepare by embodiment one to embodiment five
Curve；Wherein 1 is embodiment one, and 2 be embodiment two, and 3 be embodiment three, and 4 be example IV, and 5 be embodiment five.
Specific embodiment
Technical solution of the present invention is not limited to the specific embodiment of act set forth below, further includes between each specific embodiment
Any combination.
Specific embodiment 1: a kind of Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility of present embodiment
Chemical general formula is Ni48-xCoxMn37Sn9Cu6, wherein x is molar fraction, in 0 x≤12 < and the alloy molal quantity of element it
Be 100.
Specific embodiment 2: a kind of Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility of present embodiment
Preparation method is completed by the following steps:
One, it stocks up: being Ni according to chemical general formula48-xCoxMn37Sn9Cu6Carry out ingredient, wherein x be molar fraction, 0 < x≤
12 and the alloy in the sum of the molal quantity of element be 100, weigh nickel block, manganese block, block tin, cobalt block and copper billet respectively as former
Material；
Two, the weighed raw material of step 1 is placed in melting kettle, carries out electric arc melting and obtains Ni-Co-Mn-Sn-Cu
Button ingot casting；
Three, by Ni-Co-Mn-Sn-Cu button ingot casting mechanically polish removal surface impurity, then first using acetone cleaning 2~
Alcohol washes are used again 2~3 times and be encapsulated into vacuum degree as 10 for 3 times-3In the quartz ampoule of Pa, at 1073K keep the temperature 36~48h into
Row Homogenization Treatments, and in ice water of quenching, finally obtain Ni48-xCoxMn37Sn9Cu6Magnetic refrigeration alloy material.
Specific embodiment 3: present embodiment is unlike specific embodiment two: logical according to chemistry in step 1
Formula is Ni48-xCoxMn37Sn9Cu6Ingredient is carried out, wherein x is molar fraction, x=6.Other are identical with embodiment two.
Specific embodiment 4: present embodiment is unlike specific embodiment two or three: according to change in step 1
General formula is Ni48-xCoxMn37Sn9Cu6Ingredient is carried out, wherein x is molar fraction, x=8.Other with specific embodiment two or
Three is identical.
Specific embodiment 5: unlike one of present embodiment and specific embodiment two to four: being pressed in step 1
It is Ni according to chemical general formula48-xCoxMn37Sn9Cu6Ingredient is carried out, wherein x is molar fraction, x=10.Other and specific embodiment
One of two to four is identical.
Specific embodiment 6: unlike one of present embodiment and specific embodiment two to five: institute in step 1
State the equal 99.95wt.% or more of purity of nickel block, manganese block, block tin, cobalt block and copper billet.Other and specific embodiment two to five it
One is identical.
Specific embodiment 7: unlike one of present embodiment and specific embodiment two to six: institute in step 2
State the concrete operations of electric arc melting are as follows: mechanical pump is respectively adopted first and molecular pump is evacuated to 4 × 10-3After Pa, then reversely charging is high
Pure argon is excited electric arc to start melting, applies magnetic agitation in fusion process to 0.07MPa, and repeatedly overturning melting 6 times with
On.Other are identical as one of specific embodiment two to six.
Specific embodiment 10: the present embodiment is different from the first embodiment in that: the big magnetothermal effect of high temperature high-ductility
Ni-Co-Mn-Sn-Cu alloy in the refrigerating material or refrigeration equipment under elevated operating temperature；Wherein, in 7T magnetic when x=8
Off field, Ni40Co8Mn37Sn9Cu6Alloy becomes in the huge magnetic entropy that 344K obtains 34.8J/kgK, and the alloy compression failure is strong
Degree and compression strain are up to 1072.0MPa and 11.9% respectively.Other are same as the specific embodiment one.
Beneficial effects of the present invention are verified using following embodiments:
Embodiment one: a kind of preparation method of the Ni-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility is by following step
Suddenly it completes:
One, it stocks up: being Ni according to chemical general formula48Mn37Sn9Cu6Ingredient is carried out, weighs nickel block, manganese block, block tin, cobalt respectively
Block and copper billet are as raw material；
Two, the weighed raw material of step 1 is placed in melting kettle, carries out electric arc melting and obtains Ni-Mn-Sn-Cu button
Ingot casting；The concrete operations of the electric arc melting are as follows: mechanical pump is respectively adopted first and molecular pump is evacuated to 4 × 10-3After Pa, then
Reversely charging high-purity argon gas excites electric arc to start melting, applies magnetic agitation in fusion process to 0.07MPa, and overturning is molten repeatedly
Refining 6 times or more；
Three, Ni-Mn-Sn-Cu button ingot casting is mechanically polished into removal surface impurity, is then first cleaned 2~3 times using acetone
Alcohol washes are used again 2~3 times and be encapsulated into vacuum degree as 10-3In the quartz ampoule of Pa, 36~48h is kept the temperature at 1073K and is carried out
Homogenization Treatments, and in ice water of quenching, finally obtain Ni48Mn37Sn9Cu6Magnetic refrigeration alloy material.
Embodiment two: a kind of preparation method of the Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility is by following
What step was completed:
One, it stocks up: being Ni according to chemical general formula42Co6Mn37Sn9Cu6Carry out ingredient, weigh respectively nickel block, manganese block, block tin,
Cobalt block and copper billet are as raw material；
Two, the weighed raw material of step 1 is placed in melting kettle, carries out electric arc melting and obtains Ni-Co-Mn-Sn-Cu
Button ingot casting；The concrete operations of the electric arc melting are as follows: mechanical pump is respectively adopted first and molecular pump is evacuated to 4 × 10-3Pa
Afterwards, then reversely charging high-purity argon gas is to 0.07MPa, excites electric arc to start melting, applies magnetic agitation in fusion process, and turn over repeatedly
Peritectic refining 6 times or more；
Three, by Ni-Co-Mn-Sn-Cu button ingot casting mechanically polish removal surface impurity, then first using acetone cleaning 2~
Alcohol washes are used again 2~3 times and be encapsulated into vacuum degree as 10 for 3 times-3In the quartz ampoule of Pa, at 1073K keep the temperature 36~48h into
Row Homogenization Treatments, and in ice water of quenching, finally obtain Ni42Co6Mn37Sn9Cu6Magnetic refrigeration alloy material.
Embodiment three: a kind of preparation method of the Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility is by following
What step was completed:
One, it stocks up: being Ni according to chemical general formula40Co8Mn37Sn9Cu6Carry out ingredient, weigh respectively nickel block, manganese block, block tin,
Cobalt block and copper billet are as raw material；
Two, the weighed raw material of step 1 is placed in melting kettle, carries out electric arc melting and obtains Ni-Co-Mn-Sn-Cu
Button ingot casting；The concrete operations of the electric arc melting are as follows: mechanical pump is respectively adopted first and molecular pump is evacuated to 4 × 10-3Pa
Afterwards, then reversely charging high-purity argon gas is to 0.07MPa, excites electric arc to start melting, applies magnetic agitation in fusion process, and turn over repeatedly
Peritectic refining 6 times or more；
Three, by Ni-Co-Mn-Sn-Cu button ingot casting mechanically polish removal surface impurity, then first using acetone cleaning 2~
Alcohol washes are used again 2~3 times and be encapsulated into vacuum degree as 10 for 3 times-3In the quartz ampoule of Pa, at 1073K keep the temperature 36~48h into
Row Homogenization Treatments, and in ice water of quenching, finally obtain Ni40Co8Mn37Sn9Cu6Magnetic refrigeration alloy material.
Example IV: a kind of preparation method of the Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility is by following
What step was completed:
One, it stocks up: being Ni according to chemical general formula38Co10Mn37Sn9Cu6Carry out ingredient, weigh respectively nickel block, manganese block, block tin,
Cobalt block and copper billet are as raw material；
Two, the weighed raw material of step 1 is placed in melting kettle, carries out electric arc melting and obtains Ni-Co-Mn-Sn-Cu
Button ingot casting；The concrete operations of the electric arc melting are as follows: mechanical pump is respectively adopted first and molecular pump is evacuated to 4 × 10-3Pa
Afterwards, then reversely charging high-purity argon gas is to 0.07MPa, excites electric arc to start melting, applies magnetic agitation in fusion process, and turn over repeatedly
Peritectic refining 6 times or more；
Three, by Ni-Co-Mn-Sn-Cu button ingot casting mechanically polish removal surface impurity, then first using acetone cleaning 2~
Alcohol washes are used again 2~3 times and be encapsulated into vacuum degree as 10 for 3 times-3In the quartz ampoule of Pa, at 1073K keep the temperature 36~48h into
Row Homogenization Treatments, and in ice water of quenching, finally obtain Ni38Co10Mn37Sn9Cu6Magnetic refrigeration alloy material.
Embodiment five: a kind of preparation method of the Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility is by following
What step was completed:
One, it stocks up: being Ni according to chemical general formula36Co12Mn37Sn9Cu6Carry out ingredient, weigh respectively nickel block, manganese block, block tin,
Cobalt block and copper billet are as raw material；
Two, the weighed raw material of step 1 is placed in melting kettle, carries out electric arc melting and obtains Ni-Co-Mn-Sn-Cu
Button ingot casting；The concrete operations of the electric arc melting are as follows: mechanical pump is respectively adopted first and molecular pump is evacuated to 4 × 10-3Pa
Afterwards, then reversely charging high-purity argon gas is to 0.07MPa, excites electric arc to start melting, applies magnetic agitation in fusion process, and turn over repeatedly
Peritectic refining 6 times or more；
Three, by Ni-Co-Mn-Sn-Cu button ingot casting mechanically polish removal surface impurity, then first using acetone cleaning 2~
Alcohol washes are used again 2~3 times and be encapsulated into vacuum degree as 10 for 3 times-3In the quartz ampoule of Pa, at 1073K keep the temperature 36~48h into
Row Homogenization Treatments, and in ice water of quenching, finally obtain Ni36Co12Mn37Sn9Cu6Magnetic refrigeration alloy material.
It is as follows that the refrigeration alloy material of magnetic obtained by embodiment is subjected to material phase analysis:
Fig. 7 is the compression failure load-deformation curve of the magnetic refrigeration alloy material of the preparation of embodiment one to five at room temperature.
1, using wire cutting method, respectively on the magnetic refrigeration alloy material of embodiment one, embodiment two and embodiment three
The disk of 3 × 1mm of φ is cut as phase transformation test sample, uses dsc measurement martensitic transformation temperature for 333.8K, this temperature
More than room temperature.Fig. 1 is the DSC curve of magnetic refrigeration alloy material prepared by embodiment one；Fig. 2 is prepared by embodiment two
The DSC curve of magnetic refrigeration alloy material；Fig. 3 is the DSC curve of magnetic refrigeration alloy material prepared by embodiment three；It can be with by Fig. 1
Find out the alloy sample Ni undoped with Co element48Mn37Sn9Cu6Martensitic transformation temperature be 480.1K；, can be seen by Fig. 2
Ni out42Co6Mn37Sn9Cu6The martensitic transformation temperature of alloy is 363.9K；Ni as seen from Figure 340Co8Mn37Sn9Cu6Alloy
Martensitic transformation temperature be 333.8K.Comparison discovery, with the increase of Co doping content, the martensitic phase alternating temperature of alloy sample
Degree gradually decreases, but is still maintained at the level much higher than room temperature.
2, the magnetization of the magnetic refrigeration alloy material prepared using magnetic measurement system (MPMS3) measurement embodiment one to four is strong
The relation curve of degree and temperature.Fig. 4 is pyromagnetic song of the magnetic refrigeration alloy material of the preparation of embodiment one to four under the magnetic field 100Oe
Line；Its Curie temperature can be obtained according to hot (M-T) curve of the magnetic of Fig. 4 and is up to 375.3K, i.e., realize Curie's temperature in the present embodiment
Degree > martensitic transformation temperature > room temperature design requirement.
3, the magnetothermal effect application magnetic entropy for the magnetic refrigeration alloy material that prepared by embodiment three becomes Δ SMTo characterize；Utilize magnetics
Measuring system (MPMS3) measures the intensity of magnetization of magnetic refrigeration alloy material prepared by embodiment three and the relationship song of externally-applied magnetic field
Line；
According to the relational expression based on Maxwell equation:
Isothermal magnetization (M-H) curve as shown in Figure 5 has calculated separately Entropy Changes of the alloy sample under different magnetic field variation,
As a result as shown in fig. 6, under the magnetic field 7T, Ni40Co8Mn37Sn9Cu6Alloy obtains the huge magnetic entropy of 34.8J/kgK in 344K
Become.
4, using wire cutting method, freeze on alloy material in the magnetic of embodiment one to embodiment five cut φ 3 respectively
The cylinder of × 5mm is as compression test test sample, and the result of compression failure load-deformation curve as shown in Figure 7 is it is found that reality
The compression strength and breaking strain for applying the magnetic refrigeration alloy material of the preparation of example three are up to 1072.0MPa and 11.9% respectively.
Claims (8)
1. a kind of Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility, it is characterised in that the big magnetothermal effect of high temperature high-ductility
Ni-Co-Mn-Sn-Cu alloy chemical general formula be Ni48-xCoxMn37Sn9Cu6, wherein x is molar fraction, 0 x≤12 < and institute
Stating the sum of molal quantity of element in alloy is 100.
2. a kind of preparation method of the Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility as described in claim 1,
It is characterized in that the preparation method of the Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility is completed by the following steps:
One, it stocks up: being Ni according to chemical general formula48-xCoxMn37Sn9Cu6Carry out ingredient, wherein x be molar fraction, 0 x≤12 < and
The sum of molal quantity of element is 100 in the alloy, weighs nickel block, manganese block, block tin, cobalt block and copper billet respectively as raw material；
Two, the weighed raw material of step 1 is placed in melting kettle, carries out electric arc melting and obtains Ni-Co-Mn-Sn-Cu button
Ingot casting；
Three, Ni-Co-Mn-Sn-Cu button ingot casting is mechanically polished into removal surface impurity, is then first cleaned 2~3 times using acetone
Alcohol washes are used again 2~3 times and be encapsulated into vacuum degree as 10-3In the quartz ampoule of Pa, 36~48h is kept the temperature at 1073K and is carried out
Homogenization Treatments, and in ice water of quenching, finally obtain Ni48-xCoxMn37Sn9Cu6Magnetic refrigeration alloy material.
3. a kind of preparation side of the Ni-Co-Mn-Sn-Cu alloy of big magnetothermal effect of high temperature high-ductility according to claim 2
Method, it is characterised in that in step 1 according to chemical general formula be Ni48-xCoxMn37Sn9Cu6Ingredient is carried out, wherein x is molar fraction, x
=6.
4. a kind of preparation side of the Ni-Co-Mn-Sn-Cu alloy of big magnetothermal effect of high temperature high-ductility according to claim 2
Method, it is characterised in that in step 1 according to chemical general formula be Ni48-xCoxMn37Sn9Cu6Ingredient is carried out, wherein x is molar fraction, x
=8.
5. a kind of preparation side of the Ni-Co-Mn-Sn-Cu alloy of big magnetothermal effect of high temperature high-ductility according to claim 2
Method, it is characterised in that in step 1 according to chemical general formula be Ni48-xCoxMn37Sn9Cu6Ingredient is carried out, wherein x is molar fraction, x
=10.
6. a kind of preparation side of the Ni-Co-Mn-Sn-Cu alloy of big magnetothermal effect of high temperature high-ductility according to claim 2
Method, it is characterised in that nickel block described in step 1, manganese block, block tin, cobalt block and copper billet the equal 99.95wt.% or more of purity.
7. a kind of preparation side of the Ni-Co-Mn-Sn-Cu alloy of big magnetothermal effect of high temperature high-ductility according to claim 2
Method, it is characterised in that the concrete operations of electric arc melting described in step 2 are as follows: mechanical pump is respectively adopted first and molecule pumping is true
Sky is to 4 × 10-3After Pa, then reversely charging high-purity argon gas excites electric arc to start melting, applies magnetic force in fusion process to 0.07MPa
Stirring, and overturn melting 6 times repeatedly or more.
8. a kind of application of the Ni-Co-Mn-Sn-Cu alloy of big magnetothermal effect of high temperature high-ductility according to claim 1,
It is characterized in that the Ni-Co-Mn-Sn-Cu alloy of the big magnetothermal effect of high temperature high-ductility for the refrigerating material or system under elevated operating temperature
In cool equipment；Wherein, when x=8 under the magnetic field 7T, Ni40Co8Mn37Sn9Cu6Alloy obtains the huge of 34.8J/kgK in 344K
Magnetic entropy becomes, and the alloy compressed rupture strength and compression strain are up to 1072.0MPa and 11.9% respectively.
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| CN201910798078.5A CN110423934B (en) | 2019-08-27 | 2019-08-27 | High-temperature high-toughness Ni-Co-Mn-Sn-Cu alloy with large magnetocaloric effect, and preparation method and application thereof |
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| CN201910798078.5A CN110423934B (en) | 2019-08-27 | 2019-08-27 | High-temperature high-toughness Ni-Co-Mn-Sn-Cu alloy with large magnetocaloric effect, and preparation method and application thereof |
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Cited By (2)
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| CN112701490A (en) * | 2020-12-17 | 2021-04-23 | 哈尔滨理工大学 | Dynamically-adjustable multifunctional terahertz metamaterial device based on TiNi shape memory alloy film |
| CN116287933A (en) * | 2023-03-29 | 2023-06-23 | 哈尔滨理工大学 | Ni-Mn-Sn-Ti shape memory alloy with high elastic and thermal properties and preparation method thereof |
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| CN106119661A (en) * | 2016-07-29 | 2016-11-16 | 东北大学 | A kind of Mn Ni Sn Co alloy thin band and preparation method thereof |
| CN106917030A (en) * | 2017-04-21 | 2017-07-04 | 太原科技大学 | A kind of downfield drives orientation Mn Ni Sn magnetic refrigeration alloy material and its method for preparing thin strip thereof |
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| CN112701490A (en) * | 2020-12-17 | 2021-04-23 | 哈尔滨理工大学 | Dynamically-adjustable multifunctional terahertz metamaterial device based on TiNi shape memory alloy film |
| CN112701490B (en) * | 2020-12-17 | 2022-02-08 | 哈尔滨理工大学 | Dynamically-adjustable multifunctional terahertz metamaterial device based on TiNi shape memory alloy film |
| CN116287933A (en) * | 2023-03-29 | 2023-06-23 | 哈尔滨理工大学 | Ni-Mn-Sn-Ti shape memory alloy with high elastic and thermal properties and preparation method thereof |
| CN116287933B (en) * | 2023-03-29 | 2024-01-09 | 哈尔滨理工大学 | Ni-Mn-Sn-Ti shape memory alloy with high elastic and thermal properties and preparation method thereof |
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