CN104419880A - Low-cost wide-supercooled liquid-phase-region zirconium-based amorphous alloy - Google Patents
Low-cost wide-supercooled liquid-phase-region zirconium-based amorphous alloy Download PDFInfo
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Abstract
The invention discloses a low-cost wide-supercooled liquid-phase-region zirconium-based amorphous alloy. The atomic percentage expression of the alloy element of the amorphous alloy is ZraTibCucBedNbeTaf, wherein a is smaller than or equal to 38 and greater than or equal to 32; b is smaller than or equal to 33 and greater than or equal to 27; c is smaller than or equal to 10 and greater than or equal to 6; d is smaller than or equal to 29 and greater than or equal to 25; e is smaller than or equal to 3 and greater than or equal to 0; f is smaller than or equal to 0.5 and greater than or equal to 0; e and f are not zero at the same time; and a+b+c+d+e+f=100. The low-cost wide-supercooled liquid-phase region zirconium-based amorphous alloy has the significant advantages that the preparation cost of the amorphous alloy is significantly reduced; the pure metal raw material of which the purity can be up to 99.99% or even 99.9999% needs to be adopted when the amorphous alloy is prepared in the past; just the pure metal raw material with technical purity can be used when the alloy system disclosed by the invention is prepared; the preparation cost of the amorphous alloy is greatly reduced; the actual application range of the amorphous alloy is increased; the amorphous alloy having the system has relatively low elasticity modulus and good plasticity; the amorphous alloy material has a relatively wide supercooled liquid-phase region; the range of the supercooled liquid-phase region is about 160 DEG C; the amorphous alloy has relatively good thermoplastic forming ability; and a wide application prospect of the series of amorphous alloys in the fields such as structure materials and medical instruments is ensured by low cost and high thermoplastic forming ability of the series of amorphous alloys.
Description
Technical field
The invention belongs to non-crystaline amorphous metal technical field, relate to a kind of zirconium-base amorphous alloy of low cost wide supercooling liquid phase region.
Background technology
Bulk amorphous alloys is as a kind of type material, due to the atomic arrangement structure that it is special, them are made to have mechanics, physics and the chemical property more excellent than crystalline material, the such as corrosion resistance nature etc. of high strength, high-fracture toughness, high elastic limit, low Young's modulus and excellence, non-crystaline amorphous metal is made to have huge application potential in a lot of fields, as machinery, electronics, chemical industry, biologic medical, space flight and aviation and military field etc.
The premium properties of zirconium-base amorphous alloy and high glass forming ability and low critical cooling velocity are the high-strength structure materials most in non-crystaline amorphous metal system with using value.But in zirconium-base amorphous alloy preparation process in the past, mostly adopt highly purified metallic substance, add the preparation cost of zirconium-base amorphous alloy, thus its practical application cost is also strengthened, hinder its practical application.
And supercooled liquid phase sector width △ T
xbe measuring of block amorphous alloy thermoplastic forming ability, its numerical value is larger, and supercooled liquid just possesses higher thermostability, and bulk amorphous alloy just can carry out thermoplasticity and shape in wider temperature and longer time scope.
Large block amorphous preparation technology also exists a large difficult point, is all generally formulated with the pure metal of purity more than 99.99% when preparing amorphous exactly, and the pure metal price comparison of raw materials is expensive, have impact on the research and development of its industrial application.The raw-material purity preparing bulk amorphous alloys reported at present is generally at more than 4N, adopt the raw-material reason of high purity as follows: 1) because research materials are in this respect fewer, so, the starting material that purity is high, alloying constituent can be made comparatively clear and definite, be also easy to carry out theoretic research and analysis in theory simultaneously; 2) adopt the starting material that purity is high, the impact of false reasoning particle can be reduced, avoid heterogeneous forming core as much as possible, cause larger condensate depression.If can prepare bulk amorphous alloys with the starting material of the technical purity of 2N, its cost can become the reduction of the order of magnitude, thus can strengthen its industrial practical ranges further.
Summary of the invention
The object of this invention is to provide a kind of zirconium-base amorphous alloy, by suitable Composition Design, develop and there is strong glass forming ability and the block amorphous alloy with wide supercooling liquid phase region, solve the problem that existing zirconium-base amorphous alloy preparation cost is high.
Principle of the present invention is: in order to reduce the preparation cost of zirconium-base amorphous alloy, to increase the practical ranges of alloy, provides a kind of Zr-Ti-Cu-Be-Nb-Ta block amorphous alloy, improves the amorphous formation ability of zirconium-base amorphous alloy with this.
Technical solution of the present invention is: a kind of zirconium-base amorphous alloy of low cost wide supercooling liquid phase region, and its alloying element atomic percent expression formula is Zr
ati
bcu
cbe
dnb
eta
f, wherein 32≤a≤38,27≤b≤33,6≤c≤10,25≤d≤29,0≤e≤3,0≤f≤0.5, and be zero, a+b+c+d+e+f=100 when e, f are different.This Amorphous Alloy not only preparation cost is low, and has wide supercooling liquid phase region, and supercooling liquid phase region scope is about 160 DEG C.
A zirconium-base amorphous alloy for low cost wide supercooling liquid phase region, described alloy adopts copper mold casting method or water quenching preparation.
Wherein water quenching comprises following preparation process:
Prepared by step 1, mother alloy: by pure metal Zr, Ti, Cu, Be, Nb, Ta of massive industrial purity by selected atomic component proportioning, in high-purity Ar protective atmosphere, non-consumable is smelted into uniform mother alloy ingot;
Prepared by step 2, non-crystaline amorphous metal: pulverized by mother alloy ingot and load quartz glass tube, be evacuated to 10
-3encapsulate after Pa, in resistance furnace, be heated to above alloy melting point 200K be incubated 1h, make it to melt again, mix, finally carry out shrend, obtain the block amorphous alloy of selected components.
Copper mold casting method comprises following preparation process:
The preparation of step 1, mother alloy: Zr, Ti, Cu, Be, Nb, Ta are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.First regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material and carry out melting.During mother alloy melting, fusion process process need carry out 3 ~ 5 times repeatedly; Melting cools after mixing, and obtains mother alloy ingot;
Step 2, non-crystaline amorphous metal sample preparation: use common metal mold casting method, the mother alloy ingot refuse obtained by step 1, utilizes the absorbing and casting device in electric arc furnace, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
The present invention is compared with existing preparation process condition, and its remarkable advantage is:
1, significantly reduce the cost preparing non-crystaline amorphous metal: high purity 99.99% even the pure metal starting material of 99.9999% when preparing non-crystaline amorphous metal, need be adopted in the past, the pure metal starting material of technical purity are only needed time prepared by alloy system of the present invention, greatly reduce the preparation cost preparing non-crystaline amorphous metal, improve the practical ranges of non-crystaline amorphous metal;
2, this system non-crystaline amorphous metal, has lower Young's modulus, has good plasticity;
3, this amorphous alloy material has wider supercooling liquid phase region, and supercooling liquid phase region scope is about 160 DEG C, has good thermoplastic forming ability;
4, the low cost of this series alloy, high thermoplasticity crystallized ability ensure that this Amorphous Alloy has broad application prospects in the field such as structured material, medicine equipment.
Embodiment
The present invention is further illustrated below by embodiment.
embodiment 1 Zr
35
ti
27
cu
8
be
27
nb
3
Prepared by copper mold casting method.
Step 1: the preparation of mother alloy.Zirconium block, titanium block, copper ingot, beryllium block, niobium block are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.Regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material melting.First put into dystectic metallic Z r, Ti and Nb during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, fusion process repeats 3 ~ 5 times, after melting evenly, obtains mother alloy ingot after cooling.
Step 2: non-crystaline amorphous metal sample preparation: use common metal mold casting method; the mother alloy ingot refuse obtained by step 1; utilize the absorbing and casting device in electric arc furnace, in protection of inert gas atmosphere, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
Made bulk amorphous alloy diameter is 16mm, is about 80mm.Its glass transition temp T
gbe 309 DEG C, crystallization temperature T
xbe 467 DEG C, supercooling liquid phase region △ T
xit is 158 DEG C.
embodiment 2 Zr
35
ti
28
cu
8
be
27
nb
2
Prepared by water quenching.
Be technical purity by block pure metal Zr, Ti, Cu, Be, Nb(purity) by selected atomic component proportioning, in high-purity Ar protective atmosphere, non-consumable is smelted into uniform mother alloy ingot.First put into dystectic metallic Z r, Ti and Nb during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, to reduce the loss on ignition of low melting point metal, ensure the accuracy of alloying constituent.Fusion process need carry out 3 ~ 5 times repeatedly.Mother alloy ingot is pulverized and loads quartz glass tube, pumping high vacuum (~ 10
-3pa) encapsulate afterwards.In resistance furnace, be heated to above alloy melting point 200K be incubated 1h, make it to melt again, mix, finally carry out shrend, obtain the block amorphous alloy of selected components.
Made bulk amorphous alloy diameter is 18mm, is about 30mm.Its glass transition temp T
gbe 307 DEG C, crystallization temperature T
xbe 466 DEG C, supercooling liquid phase region △ T
xit is 159 DEG C.
embodiment 3 Zr
35
ti
29
cu
8
be
27
nb
1
Prepared by copper mold casting method.
Step 1: the preparation of mother alloy.Zirconium block, titanium block, copper ingot, beryllium block, niobium block are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.Regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material melting.First put into dystectic metallic Z r, Ti and Nb during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, fusion process repeats 3 ~ 5 times, after melting evenly, obtains mother alloy ingot after cooling.
Step 2: non-crystaline amorphous metal sample preparation: use common metal mold casting method; the mother alloy ingot refuse obtained by step 1; utilize the absorbing and casting device in electric arc furnace, in protection of inert gas atmosphere, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
Made bulk amorphous alloy diameter is 16mm, is about 75mm.Its glass transition temp T
gbe 308 DEG C, crystallization temperature T
xbe 469 DEG C, supercooling liquid phase region △ T
xit is 161 DEG C.
embodiment 4 Zr
35
ti
29.5
cu
8
be
27
ta
0.5
Prepared by copper mold casting method.
Step 1: the preparation of mother alloy.Zirconium block, titanium block, copper ingot, beryllium block, tantalum block are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.Regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material melting.First put into dystectic metallic Z r, Ti and Ta during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, fusion process repeats 3 ~ 5 times, after melting evenly, obtains mother alloy ingot after cooling.
Step 2: non-crystaline amorphous metal sample preparation: use common metal mold casting method; the mother alloy ingot refuse obtained by step 1; utilize the absorbing and casting device in electric arc furnace, in protection of inert gas atmosphere, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
Made bulk amorphous alloy diameter is 16mm, is about 80mm.Its glass transition temp T
gbe 307 DEG C, crystallization temperature T
xbe 466 DEG C, supercooling liquid phase region △ T
xit is 159 DEG C.
embodiment 5 Zr
35
ti
29.99
cu
8
be
27
ta
0.01
Prepared by water quenching.
Be technical purity by block pure metal Zr, Ti, Cu, Be, Ta(purity) by selected atomic component proportioning, in high-purity Ar protective atmosphere, non-consumable is smelted into uniform mother alloy ingot.First put into dystectic metallic Z r, Ti and Ta during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, to reduce the loss on ignition of low melting point metal, ensure the accuracy of alloying constituent.Fusion process need carry out 3 ~ 5 times repeatedly.Mother alloy ingot is pulverized and loads quartz glass tube, pumping high vacuum (~ 10
-3pa) encapsulate afterwards.In resistance furnace, be heated to above alloy melting point 200K be incubated 1h, make it to melt again, mix, finally carry out shrend, obtain the block amorphous alloy of selected components.
Made bulk amorphous alloy diameter is 18mm, is about 30mm.Its glass transition temp T
gbe 305 DEG C, crystallization temperature T
xbe 466 DEG C, supercooling liquid phase region △ T
xit is 161 DEG C.
embodiment 6 Zr
35
ti
29.9
cu
8
be
27
ta
0.1
Prepared by copper mold casting method.
Step 1: the preparation of mother alloy.Zirconium block, titanium block, copper ingot, beryllium block, tantalum block are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.Regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material melting.First put into dystectic metallic Z r, Ti and Ta during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, fusion process repeats 3 ~ 5 times, after melting evenly, obtains mother alloy ingot after cooling.
Step 2: non-crystaline amorphous metal sample preparation: use common metal mold casting method; the mother alloy ingot refuse obtained by step 1; utilize the absorbing and casting device in electric arc furnace, in protection of inert gas atmosphere, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
Made bulk amorphous alloy diameter is 16mm, is about 70mm.Its glass transition temp T
gbe 310 DEG C, crystallization temperature T
xbe 468 DEG C, supercooling liquid phase region △ T
xit is 158 DEG C.
embodiment 7 Zr
35
ti
29.7
cu
8
be
27
ta
0.3
Prepared by water quenching.
Be technical purity by block pure metal Zr, Ti, Cu, Be, Ta(purity) by selected atomic component proportioning, in high-purity Ar protective atmosphere, non-consumable is smelted into uniform mother alloy ingot.First put into dystectic metallic Z r, Ti and Ta during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, to reduce the loss on ignition of low melting point metal, ensure the accuracy of alloying constituent.Fusion process need carry out 3 ~ 5 times repeatedly.Mother alloy ingot is pulverized and loads quartz glass tube, pumping high vacuum (~ 10
-3pa) encapsulate afterwards.In resistance furnace, be heated to above alloy melting point 200K be incubated 1h, make it to melt again, mix, finally carry out shrend, obtain the block amorphous alloy of selected components.
Made bulk amorphous alloy diameter is 18mm, is about 30mm.Its glass transition temp T
gbe 309 DEG C, crystallization temperature T
xbe 466 DEG C, supercooling liquid phase region △ T
xit is 157 DEG C.
embodiment 8 Zr
35
ti
29.5
cu
8
be
27
ta
0.5
nb
3
Prepared by copper mold casting method.
Step 1: the preparation of mother alloy.Zirconium block, titanium block, copper ingot, beryllium block, tantalum block, niobium block are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.Regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material melting.First put into dystectic metal Nb, Ta during melting, form alloy cast ingot, then add slightly low spot metallic Z r, Ti, form alloy cast ingot, finally add low melting point metal Cu, Be and carry out melting, fusion process repeats 3 ~ 5 times, after melting evenly, after cooling, obtain mother alloy ingot.
Step 2: non-crystaline amorphous metal sample preparation: use common metal mold casting method; the mother alloy ingot refuse obtained by step 1; utilize the absorbing and casting device in electric arc furnace, in protection of inert gas atmosphere, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
Made bulk amorphous alloy diameter is 16mm, is about 85mm.Its glass transition temp T
gbe 310 DEG C, crystallization temperature T
xbe 467 DEG C, supercooling liquid phase region △ T
xit is 157 DEG C.
embodiment 9 Zr
35
ti
28
cu
8
be
27
nb
1.5
ta
0.5
Prepared by water quenching.
Be technical purity by block pure metal Zr, Ti, Cu, Be, Nb, Ta(purity) by selected atomic component proportioning, in high-purity Ar protective atmosphere, non-consumable is smelted into uniform mother alloy ingot.First put into dystectic metal Nb, Ta during melting, form alloy cast ingot, then add slightly low spot metallic Z r, Ti, form alloy cast ingot, finally add low melting point metal Cu, Be and carry out melting, to reduce the loss on ignition of low melting point metal, ensure the accuracy of alloying constituent.Fusion process need carry out 3 ~ 5 times repeatedly.Mother alloy ingot is pulverized and loads quartz glass tube, pumping high vacuum (~ 10
-3pa) encapsulate afterwards.In resistance furnace, be heated to above alloy melting point 200K be incubated 1h, make it to melt again, mix, finally carry out shrend, obtain the block amorphous alloy of selected components.
Made bulk amorphous alloy diameter is 18mm, is about 30mm.Its glass transition temp T
gbe 306 DEG C, crystallization temperature T
xbe 465 DEG C, supercooling liquid phase region △ T
xit is 159 DEG C.
embodiment 10 Zr
32
ti
30
cu
8
be
27
nb
3
Prepared by copper mold casting method.
Step 1: the preparation of mother alloy.Zirconium block, titanium block, copper ingot, beryllium block, niobium block are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.Regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material melting.First put into dystectic metallic Z r, Ti and Nb during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, fusion process repeats 3 ~ 5 times, after melting evenly, obtains mother alloy ingot after cooling.
Step 2: non-crystaline amorphous metal sample preparation: use common metal mold casting method; the mother alloy ingot refuse obtained by step 1; utilize the absorbing and casting device in electric arc furnace, in protection of inert gas atmosphere, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
Made bulk amorphous alloy diameter is 16mm, is about 80mm.Its glass transition temp T
gbe 308 DEG C, crystallization temperature T
xbe 467 DEG C, supercooling liquid phase region △ T
xit is 159 DEG C.
embodiment 11 Zr
33
ti
30
cu
8
be
27
nb
2
Prepared by water quenching.
Be technical purity by block pure metal Zr, Ti, Cu, Be, Nb(purity) by selected atomic component proportioning, in high-purity Ar protective atmosphere, non-consumable is smelted into uniform mother alloy ingot.First put into dystectic metallic Z r, Ti and Nb during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, to reduce the loss on ignition of low melting point metal, ensure the accuracy of alloying constituent.Fusion process need carry out 3 ~ 5 times repeatedly.Mother alloy ingot is pulverized and loads quartz glass tube, pumping high vacuum (~ 10
-3pa) encapsulate afterwards.In resistance furnace, be heated to above alloy melting point 200K be incubated 1h, make it to melt again, mix, finally carry out shrend, obtain the block amorphous alloy of selected components.
Made bulk amorphous alloy diameter is 18mm, is about 30mm.Its glass transition temp T
gbe 307 DEG C, crystallization temperature T
xbe 466 DEG C, supercooling liquid phase region △ T
xit is 159 DEG C.
embodiment 12 Zr
36
ti
28
cu
8
be
27
nb
1
Prepared by copper mold casting method.
Step 1: the preparation of mother alloy.Zirconium block, titanium block, copper ingot, beryllium block, niobium block are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.Regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material melting.First put into dystectic metallic Z r, Ti and Nb during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, fusion process repeats 3 ~ 5 times, after melting evenly, obtains mother alloy ingot after cooling.
Step 2: non-crystaline amorphous metal sample preparation: use common metal mold casting method; the mother alloy ingot refuse obtained by step 1; utilize the absorbing and casting device in electric arc furnace, in protection of inert gas atmosphere, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
Made bulk amorphous alloy diameter is 16mm, is about 75mm.Its glass transition temp T
gbe 309 DEG C, crystallization temperature T
xbe 469 DEG C, supercooling liquid phase region △ T
xit is 160 DEG C.
embodiment 13 Zr
38
ti
28.5
cu
7
be
26
ta
0.5
Prepared by copper mold casting method.
Step 1: the preparation of mother alloy.Zirconium block, titanium block, copper ingot, beryllium block, tantalum block are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity.Regulate the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material melting.First put into dystectic metallic Z r, Ti and Ta during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, fusion process repeats 3 ~ 5 times, after melting evenly, obtains mother alloy ingot after cooling.
Step 2: non-crystaline amorphous metal sample preparation: use common metal mold casting method; the mother alloy ingot refuse obtained by step 1; utilize the absorbing and casting device in electric arc furnace, in protection of inert gas atmosphere, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
Made bulk amorphous alloy diameter is 16mm, is about 80mm.Its glass transition temp T
gbe 307 DEG C, crystallization temperature T
xbe 465 DEG C, supercooling liquid phase region △ T
xit is 158 DEG C.
embodiment 14 Zr
33
ti
27.99
cu
10
be
29
ta
0.01
Prepared by water quenching.
Be technical purity by block pure metal Zr, Ti, Cu, Be, Ta(purity) by selected atomic component proportioning, in high-purity Ar protective atmosphere, non-consumable is smelted into uniform mother alloy ingot.First put into dystectic metallic Z r, Ti and Ta during melting, form alloy cast ingot, then add low melting point metal Cu, Be and carry out melting, to reduce the loss on ignition of low melting point metal, ensure the accuracy of alloying constituent.Fusion process need carry out 3 ~ 5 times repeatedly.Mother alloy ingot is pulverized and loads quartz glass tube, pumping high vacuum (~ 10
-3pa) encapsulate afterwards.In resistance furnace, be heated to above alloy melting point 200K be incubated 1h, make it to melt again, mix, finally carry out shrend, obtain the block amorphous alloy of selected components.
Made bulk amorphous alloy diameter is 18mm, is about 30mm.Its glass transition temp T
gbe 309 DEG C, crystallization temperature T
xbe 466 DEG C, supercooling liquid phase region △ T
xit is 157 DEG C.
Claims (4)
1. a low cost wide supercooling liquid phase region zirconium-base amorphous alloy, is characterized in that described alloying element atomic percent expression formula is: Zr
ati
bcu
cbe
dnb
eta
f, wherein 32≤a≤38,27≤b≤33,6≤c≤10,25≤d≤29,0≤e≤3,0≤f≤0.5, and be zero, a+b+c+d+e+f=100 when e, f are different.
2. low cost wide supercooling liquid phase region according to claim 1 zirconium-base amorphous alloy, is characterized in that described zirconium-base amorphous alloy adopts copper mold casting method or water quenching preparation.
3. low cost wide supercooling liquid phase region according to claim 2 zirconium-base amorphous alloy, is characterized in that described water quenching comprises following preparation process:
Step 1, prepared by mother alloy: by pure metal Zr, Ti, Cu, Be, Nb, Ta of massive industrial purity by selected atomic component proportioning, in high-purity Ar protective atmosphere, non-consumable is smelted into uniform mother alloy ingot;
Step 2, prepared by non-crystaline amorphous metal: pulverized by mother alloy ingot and load quartz glass tube, be evacuated to 10
-3encapsulate after Pa, in resistance furnace, be heated to above alloy melting point 200K be incubated 1h, make it to melt again, mix, finally carry out shrend, obtain the block amorphous alloy of selected components.
4. low cost wide supercooling liquid phase region according to claim 2 zirconium-base amorphous alloy, is characterized in that described copper mold casting method comprises following preparation process:
Step 1, the preparation of mother alloy: Zr, Ti, Cu, Be, Nb, Ta are pressed the atomic percent in design mix, prepare burden after changing into weight percent, the purity of various raw metal is all technical purity, first regulates the vacuum tightness of smelting furnace vacuum chamber to 2*10
-3pa ~ 5*10
-3pa, then fills high-purity argon gas and makes the vacuum tightness of vacuum chamber to 0.1*10
5pa ~ 0.8*10
5pa, then put into raw material and carry out melting, cool after melting mixes, obtain mother alloy ingot;
Step 2, non-crystaline amorphous metal sample preparation: use common metal mold casting method, the mother alloy ingot refuse obtained by step 1, utilizes the absorbing and casting device in electric arc furnace, mother alloy melt is sucked in water-cooled metal copper mold, obtain non-crystaline amorphous metal.
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|---|---|---|---|
| CN201310405103.1A CN104419880B (en) | 2013-09-06 | A kind of low cost wide supercooling liquid phase region zirconium-base amorphous alloy |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201310405103.1A CN104419880B (en) | 2013-09-06 | A kind of low cost wide supercooling liquid phase region zirconium-base amorphous alloy |
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| CN104419880A true CN104419880A (en) | 2015-03-18 |
| CN104419880B CN104419880B (en) | 2016-11-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132834A (en) * | 2015-09-10 | 2015-12-09 | 宋佳 | High-strength amorphous alloy and preparation method thereof |
| US20160104579A1 (en) * | 2014-05-15 | 2016-04-14 | Case Western Reserve University | Metallic glass-alloys for capacitor anodes |
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| US9905367B2 (en) * | 2014-05-15 | 2018-02-27 | Case Western Reserve University | Metallic glass-alloys for capacitor anodes |
| CN105132834A (en) * | 2015-09-10 | 2015-12-09 | 宋佳 | High-strength amorphous alloy and preparation method thereof |
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