CN103741003B - Novel high-temperature magnetic shape memory alloy and preparation method thereof - Google Patents
Novel high-temperature magnetic shape memory alloy and preparation method thereof Download PDFInfo
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- CN103741003B CN103741003B CN201410006019.7A CN201410006019A CN103741003B CN 103741003 B CN103741003 B CN 103741003B CN 201410006019 A CN201410006019 A CN 201410006019A CN 103741003 B CN103741003 B CN 103741003B
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Abstract
The present invention relates to a kind of Novel high-temperature magnetic shape memory alloy and preparation method thereof, specifically refer to Novel high-temperature magnetic shape memory alloy and preparation method thereof.Get Ga, Mn, Ni and Ga, Mn, Ni and Co in proportion, also comprise Mn element and Ga element, and carry out mixing manufacture according to method provided by the invention.The martensitic transformation peak temperature of alloy provided by the invention is respectively 816 DEG C and 470 DEG C, exceeds 445 DEG C and 300 DEG C than existing single-phase high temperature Ni-Mn-Ga alloy; The Curie temperature of this alloy is 255 DEG C, with existing Ni-Mn-Ga alloy phase ratio, exceeds 170 DEG C.
Description
technical fieldthe present invention relates to a kind of Novel high-temperature magnetic shape memory alloy and preparation method thereof, specifically refer to Novel high-temperature magnetic shape memory alloy and preparation method thereof.
background technologymagnetic control shape memory alloy has the advantage that magnetostriction materials response frequency is fast and temperature control shape memory alloy output strain is large concurrently, is a kind of intelligent material with tremendous expansion prospect; The magnetic shape memory materials found at present mainly comprises: NiMnGa, NiFeGa, FePd, FePt, Ni
2mnAl, CoNiGa, CoNiAl and NiMnX(X=In, Sn, Sb) be alloy etc.; The main mechanism that current magnetic shape memory alloy produces large magnetic-field-induced strain under the action of a magnetic field is the reorientation of martensitic twin variant under the action of a magnetic field.Therefore, magnetic memorial alloy is applied in high-temperature field, this material must be met and be at high temperature in martensitic state (Ms>100 ° of C), require that martensite has ferromegnetism simultaneously.But not only, do not find at present to meet simultaneously and there is the martensitic transformation of high temperature but also there is the alloy of high magnetic transition temperature; We prepare Ga in the recent period
42.5mn
29ni
28.5alloy, its martensitic transformation peak temperature is up to 816 ° of C, this in NiMnGa alloy never Leader cross, but the Curie temperature of alloy is lower, be not suitable as high-temp magnetic memorial alloy, grope for a long time through us, find to adopt the Ni in Co replacement Ga-Mn-Ni alloy, the martensitic transformation temperature of alloy is reduced to 470 ° of C(still higher than the martensitic transformation temperature of NiMnGa single-phased alloy), the Curie temperature of alloy really rises to 255 ° of C simultaneously, can become a kind of novel material of memorial alloy application and development.Because all trades and professions of high-temperature shape memory alloy in national economy are used widely, therefore high-temperature shape memory alloy Ga
42.5mn
29ni
27.5co
1development by the application of material and expansion open up a new road.
Summary of the invention
In view of the defect that prior art exists, the object of this invention is to provide a kind of Novel high-temperature magnetic shape memory alloy and preparation method thereof.
For achieving the above object, the technology used in the present invention solution is: Novel high-temperature magnetic shape memory alloy Ga
42.5mn
29ni
28.5-xco
x, according to molfraction than getting the Ga of 42.5 parts, Mn, 28.5Ni of 29 parts and the Ga of 42.5 parts, Mn, 27.5Ni of 29 parts and 1 part of Co, also comprise the Mn element of 3%-5%, 1.5%-3%Ga element.
Novel high-temperature magnetic shape memory alloy Ga
42.5mn
29ni
28.5-xco
xpreparation method, concrete steps are:
1) according to molfraction than get 42.5 parts Ga, 29 parts Mn, 28.5 parts Ni and 42.5 part Ga, the Mn of 29 parts, 27.5 parts of Ni and 1 part Co, put into vacuum non-consumable electrode electric arc furnace, simultaneously because the saturated vapor pressure of Mn element is lower, the fusing point of Ga is lower, in order to avoid segregation phenomena appears in alloy, supplement Mn element, the 1.5%-3%Ga element of 3%-5% in the process of batching, placement order is followed successively by Ni, Co, Ga, Mn, Ni from top to bottom;
2) arc melting 8-14 minute under protection of inert gas, the condition of 1400 ~ 1700 DEG C;
3) by the metal blocks after acetone wash heat;
4) putting into vacuum tightness is 10
-1400 DEG C of insulations 24 hours are cooled to again after being incubated 48 hours in the silica tube of PaPa under the condition of 600 DEG C;
5) quench in water, obtain Novel high-temperature magnetic shape memory alloy Ga
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1.
Described rare gas element is argon gas.
The beneficial effect of Novel high-temperature magnetic shape memory alloy is: Ga prepared by the present invention
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1the martensitic transformation peak temperature of alloy is respectively 816 DEG C and 470 DEG C, exceeds 445 DEG C and 300 DEG C than existing single-phase high temperature Ni-Mn-Ga alloy; The Curie temperature of this alloy is 255 DEG C, with existing Ni-Mn-Ga alloy phase ratio, exceeds 170 DEG C.
Accompanying drawing explanation
Fig. 1 is Ga prepared by embodiment 2
42.5mn
29ni
28.5co
1the DSC graphic representation of alloy;
Fig. 2 is Ga prepared by embodiment 2
42.5mn
29ni
27.5co
1the DSC graphic representation of alloy;
Fig. 3 is Ga prepared by embodiment 3
42.5mn
29ni
28.5co
1the DC magnetization curve figure of alloy;
Fig. 4 is Ga prepared by embodiment 3
42.5mn
29ni
27.5co
1the DC magnetization curve figure of alloy.
Reference numeral is as follows: 1, Ga
42.5mn
29ni
28.5co
1alloy heating DSC curve, 2, Ga
42.5mn
29ni
28.5co
1alloy cooling DSC curve, 3, Ga
42.5mn
29ni
27.5co
1alloy heating DSC curve, 4, Ga
42.5mn
29ni
27.5co
1alloy cooling DSC curve.
Embodiment
Novel high-temperature magnetic shape memory alloy Ga
42.5mn
29ni
28.5-xco
x: according to molfraction than getting the Ga of 42.5 parts, Mn, 28.5Ni of 29 parts and the Ga of 42.5 parts, Mn, 27.5Ni of 29 parts and 1 part of Co, also comprise the Mn element of 3%-5%, 1.5%-3%Ga element.
Embodiment 1
Novel high-temperature magnetic shape memory alloy Ga
42.5mn
29ni
28.5-xco
xpreparation method: 1) according to molfraction than get 42.5 parts Ga, 29 parts Mn, 28.5 parts Ni and 42.5 part Ga, the Mn of 29 parts, 27.5 parts of Ni and 1 part Co, put into vacuum non-consumable electrode electric arc furnace, simultaneously because the saturated vapor pressure of Mn element is lower, the fusing point of Ga is lower, in order to avoid segregation phenomena appears in alloy, supplement Mn element, the 1.5%-3%Ga element of 3%-5% in the process of batching, placement order is followed successively by Ni, Co, Ga, Mn, Ni from top to bottom;
2) arc melting 8-10 minute under rare gas element argon shield, the condition of 1400 ~ 1700 DEG C;
3) by the metal blocks after acetone wash heat;
4) putting into vacuum tightness is 10
-1400 DEG C of insulations 24 hours are cooled to again after being incubated 48 hours in the silica tube of PaPa under the condition of 600 DEG C;
5) quench in water, obtain Novel high-temperature magnetic shape memory alloy Ga
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1.
Embodiment 2
1) according to molfraction than get 42.5 parts Ga, 29 parts Mn, 28.5 parts Ni and 42.5 part Ga, the Mn of 29 parts, 27.5 parts of Ni and 1 part Co, put into vacuum non-consumable electrode electric arc furnace, simultaneously because the saturated vapor pressure of Mn element is lower, the fusing point of Ga is lower, in order to avoid segregation phenomena appears in alloy, supplement Mn element, the 1.5%-3%Ga element of 3%-5% in the process of batching, placement order is followed successively by Ni, Co, Ga, Mn, Ni from top to bottom;
2) arc melting 12 ~ 14 minutes under rare gas element argon shield, the condition of 1450 ~ 1650 DEG C;
3) by the metal blocks after acetone wash heat;
4) putting into vacuum tightness is 10
-1400 DEG C of insulations 24 hours are cooled to again after being incubated 48 hours in the silica tube of PaPa under the condition of 600 DEG C;
5) quench in water, obtain Novel high-temperature magnetic shape memory alloy Ga
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1.
Ga prepared by present embodiment
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1alloy records heating DSC curve under heat-up rate is the condition of 10K/min, and under the condition of cooling rate 10K/min, record cooling DSC curve, result as illustrated in fig. 1 and 2; The Ga prepared in present embodiment can be found out by the DSC curve in figure
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1alloy all only has a heat absorption and release peak on the DSC curve of heating and cooling, and Ga is described
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1alloy has the same thermoelastic martensitic transformation feature of same Ni-Mn-Ga ternary alloy.
Embodiment 3
1) according to molfraction than get 42.5 parts Ga, 29 parts Mn, 28.5 parts Ni and 42.5 part Ga, the Mn of 29 parts, 27.5 parts of Ni and 1 part Co, put into vacuum non-consumable electrode electric arc furnace, simultaneously because the saturated vapor pressure of Mn element is lower, the fusing point of Ga is lower, in order to avoid segregation phenomena appears in alloy, supplement Mn element, the 1.5%-3%Ga element of 3%-5% in the process of batching, placement order is followed successively by Ni, Co, Ga, Mn, Ni from top to bottom;
2) arc melting 12 minutes under rare gas element argon shield, the condition of 1600 DEG C;
3) by the metal blocks after acetone wash heat;
4) putting into vacuum tightness is 10
-1400 DEG C of insulations 24 hours are cooled to again after being incubated 48 hours in the silica tube of PaPa under the condition of 600 DEG C;
5) quench in water, obtain Novel high-temperature magnetic shape memory alloy Ga
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1.
To Ga prepared by the present embodiment
42.5mn
29ni
28.5and Ga
42.5mn
29ni
27.5co
1alloy carries out the test of Curie temperature, and as shown in Figures 3 and 4, Curie temperature is respectively 53 DEG C and 255 DEG C to test result.
Claims (1)
1. Novel high-temperature magnetic shape memory alloy, it is characterized in that, its component ratio is: get the Ga of 42.5 parts, Ga, the Mn of 29 parts of Ni or 42.5 part of 29 parts Mn and 28.5 part, the Co of 27.5 parts Ni and 1 part according to molfraction than respectively, except aforementioned proportion, more especially add the Mn element of 3%-5%, the Ga element of 1.5%-3% that participate in reaction all elements total amount;
The concrete steps of its preparation method are:
1) according to molfraction than the Co getting the Ga of 42.5 parts, the Mn of 29 parts, the Ga of 28.5 parts Ni or 42.5 part, the Mn of 29 parts, 27.5 parts Ni and 1 part, put into vacuum non-consumable electrode electric arc furnace, simultaneously because the saturated vapor pressure of Mn element is lower, the fusing point of Ga is lower, in order to avoid segregation phenomena appears in alloy, especially supplement the Mn element of 3%-5%, the Ga element of 1.5%-3% in the process of batching, placement order is followed successively by Ni, Co, Ga, Mn, Ni from top to bottom;
2) arc melting 8-14 minute under protection of inert gas, the condition of 1400 ~ 1700 DEG C, rare gas element is argon gas;
3) by the metal blocks after acetone wash heat;
4) putting into vacuum tightness is 10
-1400 DEG C of insulations 24 hours are cooled to again after being incubated 48 hours in the silica tube of Pa under the condition of 600 DEG C;
5) quench in water, obtain Novel high-temperature magnetic shape memory alloy Ga42.5Mn29Ni28.5 or Ga42.5Mn29Ni27.5Co1.
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| CN105220088B (en) * | 2015-11-05 | 2017-06-13 | 哈尔滨工业大学 | A kind of heat treatment method for improving nickel manganese gallium fiber magnetic heating performance |
| CN108286007B (en) * | 2018-02-07 | 2020-05-19 | 三峡大学 | Hasteller alloy for improving metamagnetic performance of NiCoMnSn by doping Cr and preparation method thereof |
| CN108620582B (en) * | 2018-06-05 | 2020-02-14 | 哈尔滨工程大学 | Composite material of magnetic memory alloy and copper and preparation method thereof |
| CN115786746B (en) * | 2022-11-17 | 2024-03-22 | 华能国际电力股份有限公司 | Smelting method of high manganese alloy |
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| EP0709482B1 (en) * | 1994-10-28 | 1999-07-28 | Kazuhiro Otsuka | Method of manufacturing high-temperature shape memory alloys |
| JP3947788B2 (en) * | 2001-03-27 | 2007-07-25 | 独立行政法人物質・材料研究機構 | Ti-Zr-Ni high temperature shape memory alloy thin film and method for producing the same |
| CN100465314C (en) * | 2007-03-28 | 2009-03-04 | 中国科学院物理研究所 | Magnetic material having magnetic field driven martensitic transformation effect and preparation method thereof |
| CN101705392A (en) * | 2009-11-17 | 2010-05-12 | 大连大学 | Toughening ferromagnetic shape memory alloy and preparation method thereof |
| CN101705409A (en) * | 2009-11-17 | 2010-05-12 | 大连大学 | High-temperature magnetic shape memory alloy and preparation method thereof |
| CN101705393A (en) * | 2009-11-17 | 2010-05-12 | 大连大学 | Toughening magnetic shape memory alloy and preparation method thereof |
| CN102719721B (en) * | 2012-06-19 | 2013-11-27 | 大连大学 | Magnetic shape memory alloy and preparation method thereof |
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