CN1936058A - La-Ce base amorphous alloy - Google Patents
La-Ce base amorphous alloy Download PDFInfo
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- CN1936058A CN1936058A CN 200610113545 CN200610113545A CN1936058A CN 1936058 A CN1936058 A CN 1936058A CN 200610113545 CN200610113545 CN 200610113545 CN 200610113545 A CN200610113545 A CN 200610113545A CN 1936058 A CN1936058 A CN 1936058A
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Abstract
The invention discloses an La-Ce radical non-crystal alloy that is made up from Ln(a)-TM(b)-Al(c), and Ln is La and Ce elements, TM is one or two from Co or Cu elemnt. The atom percentage content of a is 50-75wt%, and b is 15-30wt%, c is 5-25wt%. The alloy has stronger non-crystal forming ability, lower manufacturing cost, and it has the same high intension, high toughness as the normal rare earth radical non-crystal alloy. It could be used to make the carcass of small machine and super refining component.
Description
Technical field
The present invention relates to a kind of amorphous alloy material, more particularly, be meant a kind of La-Ce base noncrystal alloy with high-strong toughness, low melting point, high formation ability.
Background technology
Nineteen sixty Duwez etc. adopts quick setting method to make metal matrix (Au-Si) non-crystaline amorphous metal thin slice first, thereby has opened the formation theory to non-crystaline amorphous metal, physics, the broad research of chemistry and mechanical characteristic.Therefore but the glass forming ability of the amorphous metal alloy of early discovery is lower, can form large-sized amorphous alloy material and only limit to the precious metal-based alloy, is not used as engineering materials and further studies.From later 1980s is after a series of large block amorphous (as Mg base, Fe base, Cu base, the Co base large amorphous alloy) of representative succeeded in developing with La-Al-(Ni, Cu) and Zr-Al-(Ni, Cu) alloy, amorphous alloy has caused increasing concern as a kind of novel high-performance material with its high-strong toughness, high soft magnetism and excellent corrosion resistance nature, and among the core material that is applied to low-loss transmission system and high-performance sports equipment of part success.
The rare earth resources of China is extremely abundant, and its reserves account for the first in the world.La-Ce base non-crystalline material is meant that with La two kinds of rare earth element coexistences of Ce are the amorphous alloy material of matrix.Because La, Ce are the abundantest at rare earth element the inside storage resources, so its price is compared more cheap with other rare earth element.In addition, because the fusing point of La-Ce base alloy is generally lower, (part can near the fusing point of metal Sn), and under suboxide atmosphere, its material surface can generate survivable sull, thereby hinders further carrying out of oxidation, therefore in its industrial preparation process, needed plant and instrument is simple relatively, and each preparation process condition can be very not harsh.
Summary of the invention
The purpose of this invention is to provide a kind of La-Ce base noncrystal alloy material with high-strong toughness, low melting point, high amorphous formation ability, this non-crystaline amorphous metal adopts two kinds of rare earth element coexistences of La, Ce, has improved the glass forming ability of single La or Ce base noncrystal alloy material significantly.
The present invention is a kind of La-Ce base noncrystal alloy with high-strong toughness, low melting point, high formation ability, form by Ln (a)-TM (b)-Al (c), described Ln is La and Ce element, described TM is one or two combination in Co element or the Cu element, the atom percentage content of its a is 50～75, the atom percentage content of b is 15～30, and the atom percentage content of c is 5～25, and a+b+c=100.
The chemical ingredients of described La-Ce base noncrystal alloy can (La
xCe
1-x)
aCo
bAl
c, and 0＜x＜1 or (La
xCe
1-x)
aCu
bAl
c, and 0＜x＜1 or (La
xCe
1-x)
a(Co
yCu
1-y)
bAl
c, and 0＜x＜1,0＜y＜1.
Described La-Ce base noncrystal alloy, in the alloying constituent zone, utilize copper mold casting method to prepare the above block amorphous alloy bar of diameter 2mm, obtain the non-crystaline amorphous metal bar of diameter in the subregion, prepare the amorphous bar of diameter by casting, high-pressure casting or shrend mode in the regional area greater than 30mm greater than 10mm.
The advantage of La-Ce base noncrystal alloy material of the present invention is: (1) adopts two kinds of rare earth element coexistences, improved the glass forming ability of La-Ce base noncrystal alloy material effectively, in the alloying constituent zone of regulation, can utilize copper mold casting method to prepare the above block amorphous alloy bar of 2mm, can obtain non-crystaline amorphous metal bar in the subregion, can prepare amorphous bar by modes such as casting, high-pressure casting or shrends in the regional area greater than the oversize of 30mm greater than 10mm.(2) has the glass transformation temperature of 350K～500K, the temperature of fusion of 670K～1020K, and the subregion reaches the supercooled liquid interval of 86K, the breaking tenacity of 600MPa～1200Mpa, most of non-crystaline amorphous metal have tangible plastic deformation ability (amount of plastic deformation 0.5～5%) and the high outstanding physicals of surface smoothness.
Description of drawings
Fig. 1 is (La
0.4Ce
0.6)
65Co
25Al
10, (La
0.5Ce
0.5)
65Co
25Al
10(La
0.6Ce
0.4)
65Co
25Al
10Sample carry out Mechanics Performance Testing, the stress-strain curve diagram in its compression process.
Fig. 2 is (La
0.4Ce
0.6)
60Co
25Al
15, (La
0.5Ce
0.5)
55Co
20Al
25(La
0.5Ce
0.5)
50Co
25Al
25Sample carry out Mechanics Performance Testing, the stress-strain curve diagram in its compression process.
Fig. 3 is (La
0.5Ce
0.5)
60Cu
25Al
15, (La
0.5Ce
0.5)
55Cu
30Al
15(La
0.5Ce
0.5)
65Cu
25Al
10Sample carry out Mechanics Performance Testing, the stress-strain curve diagram in its compression process.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The present invention is a kind of La-Ce base noncrystal alloy, and the alloy composition chemical expression is as follows:
Ln(a)-TM(b)-Al(c)
Wherein:
Ln=La and Ce element;
An element among TM=Co or the Cu or the combination of two elements;
Atomic percentage conc is: 50≤a≤75,15≤b≤30,5≤c≤25, and a+b+c=100.
Having its representational chemical ingredients in the La-Ce base noncrystal alloy of the present invention has:
(La
xCe
1-x)
aCo
bAl
c, and 0＜x＜1 or
(La
xCe
1-x)
aCu
bAl
c, and 0＜x＜1 or
(La
xCe
1-x)
a(Co
yCu
1-y)
bAl
c, and 0＜x＜1,0＜y＜1.
The concrete steps that prepare a kind of La-Ce base noncrystal alloy material with high-strong toughness, low melting point, high amorphous formation ability are as follows:
Step 1: take by weighing each element
Calculating each associated element wt by required atom number takes by weighing;
Step 2: melting system Ln-TM-Al mother alloy
With step 1 claim desired raw material put into vacuum arc melting furnace, regulate suction to 5 * 10
-3Pa charges into argon shield gas, and argon pressure is 0.05MPa; Regulate electric current 50～150A, smelting temperature 1000～2000K; Melt back 3-4 takes out the Ln-TM-Al mother alloy all over the back furnace cooling;
Step 3: system Ln-TM-Al non-crystaline amorphous metal bar
The preparation diameter is the following Ln-TM-Al non-crystaline amorphous metal bar method of 12mm:
Copper mold casting method:
The described Ln-TM-Al mother alloy that step 2 is made is put into the induction furnace of quick solidification apparatus, regulates suction to 5 * 10
-3Pa charges into argon shield gas, and argon pressure is 0.05MPa; Regulate electric current 2～5A, temperature sensor 700～1100K; Spurt in the copper mold behind fusion time 2～5min, and promptly to make diameter with copper mold cooling be Ln-TM-Al non-crystaline amorphous metal bar below the 12mm.
The preparation diameter is the above Ln-TM-Al non-crystaline amorphous metal bar method of 15mm:
Topple over teeming practice:
The described Ln-TM-Al mother alloy that step 2 makes is put into the induction furnace of toppling over high-frequency induction device, regulate suction to 5 * 10
-3Pa charges into argon shield gas, and argon pressure is 0.05MPa; Regulate electric current 2～5A, temperature sensor 700～1100K; Behind fusion time 2～5min, melt is poured in the copper mold, and promptly to make diameter with copper mold cooling be Ln-TM-Al non-crystaline amorphous metal bar more than the 12mm.
Water quenching:
Or the described Ln-TM-Al mother alloy that step 2 makes put into the silica tube of the corresponding diameter of rod of pressurized gas shiled, place high frequency furnace to melt; Regulate electric current 2～5A, temperature sensor 700～1100K; Behind fusion time 5～10min, silica tube is directly put into the water quenching to room temperature, smashing and promptly making diameter behind the silica tube is the above Ln-TM-Al non-crystaline amorphous metal bar of 15mm.
High pressure casting:
Or the described Ln-TM-Al mother alloy that step 2 makes put into the silica tube of pressurized gas shiled, place high frequency furnace to melt; Regulate electric current 2～5A, temperature sensor 700～1100K; Behind fusion time 5～10min, the molten smelting in the silica tube is imported in the high-pressure casting machine, under stress cast to such an extent that cool off to corresponding copper mold or punching block, getting diameter is the above Ln-TM-Al non-crystaline amorphous metal bar of 15mm.
Inhale casting:
Or the described Ln-TM-Al mother alloy that step 2 makes put into the suction pouring stove, regulate suction to 5 * 10
-3Pa charges into argon shield gas, and argon pressure is 0.05MPa; Regulate electric current 50～150A, smelting temperature 1000～2000K, keep under the molten state outage and open and inhale the casting valve, melt is sucked the copper mold cooling, and promptly to make diameter be Ln-TM-Al non-crystaline amorphous metal bar more than the 15mm.
The Ln-TM-Al non-crystaline amorphous metal bar that makes is intercepted the section of intermediate portion, carry out the test of X ray phase structure, in the alloying constituent zone of regulation, can utilize copper mold casting method to prepare the above block amorphous alloy bar of 2mm, can obtain non-crystaline amorphous metal bar in the subregion, can prepare amorphous bar by modes such as casting, high-pressure casting or shrends in the regional area greater than the oversize of 30mm greater than 10mm.And the pocket of its sample heart portion carried out hot analytical test, obtained thermodynamical coordinate.Glass transformation temperature with 350K～500K, the temperature of fusion of 670K～1020K, and the subregion reaches the supercooled liquid interval of 86K.
Getting specification is the amorphous bar of 2mm (diameter) * 4mm (highly), tests its compression mechanics performance measurement (in the present invention, the compression mechanical property of material adopts the MTS testing of equipment).This La-Ce base noncrystal alloy system not only has higher breaking tenacity 600MPa～1200MPa, and the alloying constituent that part has a high amorphous formation ability also shows tangible viscous deformation simultaneously, and amount of plastic deformation is 0.5～5%.
According to the chemical ingredients and the proportioning thereof of non-crystaline amorphous metal of the present invention, (in actual fabrication process, convert quality to according to each atoms of elements consumption and take by weighing the common practise that this is this area.) to (La
xCe
1-x)
aCo
bAl
cThe amorphous formation ability of alloy system, mechanical property is studied.
Its concrete enforcement alloy composition scope is 0＜x＜1,50≤a≤75,15≤b≤30,5≤c≤25, and a+b+c=100, and wherein a, b, c are atomicity.
At first prepare burden, then in vacuum smelting furnace (suction to 5 * 10 according to the chemical ingredients proportioning
-3Pa charges into argon shield gas, and argon pressure is 0.05MPa; Regulate electric current 120A, smelting temperature 1500～1800K; Furnace cooling takes out after the melt back 3 times) make mother alloy, mother alloy is placed induction furnace (suction to 5 * 10 of quick solidification apparatus
-3Pa charges into argon shield gas, and argon pressure is 0.05MPa; Regulate electric current 2.5A, temperature sensor 800～1050K; Spurt into behind the fusion time 3min and (prepare diameter of rod 2～12mm) or cast and (prepare diameter of rod 12～35mm) to copper mold, and, obtain the amorphous alloy rod, test its thermodynamic stability with the copper mold cooling.
The thermodynamic property of its part enforcement alloy and partial crit size are referring to table 1.(La as can be seen
xCe
1-x)
aCo
bAl
cCompound rare-earth base alloy system has low temperature of fusion and good thermodynamic stability, and the composition in the subregion has between the cold fluid zone of serious offense of 80K.
Table 1 is the thermodynamic property and the critical size of the part amorphous alloy rod that embodiment cast.
| Aloy(at％) | d c/mm | T g/K | T x/K | T l/K | ΔT x |
| (La 0.5Ce 0.5) 75Co 20Al 05 (La 0.5Ce 0.5) 70Co 25Al 05 (La 0.5Ce 0.5) 70Co 20Al 10 (La 0.5Ce 0.5) 70Co 15Al 15 (La 0.5Ce 0.5) 65Co 30Al 05 (La 0.5Ce 0.5) 65Co 20Al 15 (La 0.5Ce 0.5) 65Co 15Al 20 (La 0.5Ce 0.5) 60Co 35Al 05 (La 0.5Ce 0.5) 60Co 30Al 10 (La 0.5Ce 0.5) 60Co 25Al 15 (La 0.5Ce 0.5) 60Co 20Al 20 (La 0.5Ce 0.5) 60Co 15Al 25 (La 0.5Ce 0.5) 55Co 35Al 10 (La 0.5Ce 0.5) 55Co 30Al 15 (La 0.5Ce 0.5) 55Co 25Al 20 (La 0.5Ce 0.5) 55Co 20Al 25 (La 0.5Ce 0.5) 55Co 35Al 15 (La 0.5Ce 0.5) 50Co 30Al 20 (La 0.5Ce 0.5) 50Co 25Al 25 (La 0.1Ce 0.9) 65Co 25Al 10 (La 0.2Ce 0.8) 65Co 25Al 10 | 2 2 ＞5 ＞10 2 ＞10 ＞5 2 ＞10 ＞5 3 2 2 ＞5 ＞5 ＞5 2 3 3 4 6 | 436.9 392.3 414.3 421 402.5 440.4 444.1 435.7 447.8 458.6 475.3 477.1 460.8 475.3 498 496 491.7 505.9 517.4 408.1 414.7 | 461.6 423 434 445 438.9 502 516.1 455.4 478 545.3 554.25 522.4 513.7 555.7 560.9 561.3 562.4 568.5 573.2 426.4 432.1 | 805.9 753.6 743.9 764.4 858 812.2 831 1010.3 902.2 904.2 916.1 891.8 1020.7 901.7 961 941.9 1004.6 971 987.6 764.5 768.8 | 24.7 30.7 19.7 24 36.4 61.6 72 19.7 30.2 86.7 79 45.3 52.9 80.4 62.9 65.3 70.7 62.6 55.8 18.3 17.4 |
| (La 0.3Ce 0.7) 65Co 25Al 10 (La 0.4Ce 0.6) 65Co 25Al 10 (La 0.5Ce 0.5) 65Co 25Al 10 (La 0.6Ce 0.4) 65Co 25Al 10 (La 0.7Ce 0.3) 65Co 25Al 10 (La 0.8Ce 0.2) 65Co 25Al 10 (La 0.9Ce 0.1) 65Co 25Al 10 | 9 ＞10 15 ＞20 ＞20 ＞10 6 | 416.5 425.1 427.1 437.3 437.3 438.9 444.5 | 435.6 448 453.2 467 471.6 475.7 473.5 | 779.4 788.9 775.8 835.3 849.5 869.2 937 | 19.1 22.9 26.1 29.7 34.3 36.8 29 |
To implementing amorphous alloy component is (La
0.4Ce
0.6)
65Co
25Al
10, (La
0.5Ce
0.5)
65Co
25Al
10(La
0.6Ce
0.4)
65Co
25Al
10Sample carry out Mechanics Performance Testing, the stress-strain(ed) curve in its compression process is as shown in Figure 1.Such non-crystaline amorphous metal has the high breaking tenacity about 750MPa as can be seen, and the part component list reveals the tangible viscous deformation greater than 1%.
To implementing amorphous alloy component is (La
0.4Ce
0.6)
60Co
25Al
15, (La
0.5Ce
0.5)
55Co
20Al
25(La
0.5Ce
0.5)
50Co
25Al
25Sample carry out Mechanics Performance Testing, the stress-strain(ed) curve in its compression process is as shown in Figure 2.Such non-crystaline amorphous metal has greater than 900MPa as can be seen, and the part can reach the high breaking tenacity about 1.2GPa, and has certain plastic deformation ability 0.5%～1.2%.
Embodiment 2
According to the chemical ingredients and the proportioning thereof of alloy of the present invention, research (La
xCe
1-x)
aCu
bAl
cThe amorphous formation ability of alloy system and mechanical property, wherein 0＜x＜1,50≤a≤75,15≤b≤30,5≤c≤25, and a+b+c=100, wherein a, b, c are atomicity.
At first prepare burden, then in vacuum smelting furnace (suction to 5 * 10 according to the chemical ingredients proportioning
-3Pa charges into argon shield gas, and argon pressure is 0.05MPa; Regulate electric current 150A, smelting temperature 1700～2000K; Furnace cooling takes out after the melt back 4 times) make mother alloy, mother alloy is placed induction furnace (suction to 5 * 10 of quick solidification apparatus
-3Pa charges into argon shield gas, and argon pressure is 0.05MPa; Regulate electric current 2A, temperature sensor 750～1000K; Spurt in the copper mold behind the fusion time 4min, and, test its thermodynamic stability with obtaining the bar of diameter after the copper mold cooling less than 12mm.
The thermodynamic property of its part enforcement alloy and partial crit size are referring to table 2.(La as can be seen
xCe
1-x)
aCu
bAl
cAlloy system has low temperature of fusion and good thermodynamic stability, and the composition in the subregion has between the cold fluid zone of serious offense of 83K.
Table 2 is the thermodynamic stability and the corresponding critical size of the amorphous alloy of embodiment.
| Aloy(at％) | d c/mm | T g/K | T x/K | T l/K | ΔT x |
| (La 0.5Ce 0.5) 75Cu 15Al 10 (La 0.5Ce 0.5) 70Cu 15Al 15 (La 0.5Ce 0.5) 70Cu 20Al 10 (La 0.5Ce 0.5) 65Cu 15Al 20 (La 0.5Ce 0.5) 65Cu 20Al 15 (La 0.5Ce 0.5) 65Cu 25Al 10 (La 0.5Ce 0.5) 65Cu 30Al 5 (La 0.5Ce 0.5) 60Cu 15Al 25 (La 0.5Ce 0.5) 60Cu 20Al 20 (La 0.5Ce 0.5) 60Cu 30Al 10 (La 0.5Ce 0.5) 60Cu 25Al 15 (La 0.5Ce 0.5) 55Cu 30Al 15 (La 0.5Ce 0.5) 55Cu 35Al 10 (La 0.5Ce 0.5) 55Cu 25Al 20 (La 0.5Ce 0.5) 55Cu 20Al 25 (La 0.5Ce 0.5) 50Cu 30Al 20 (La 0.5Ce 0.5) 50Cu 35Al 15 (La 0.2Ce 0.8) 65Cu 25Al 10 (La 0.3Ce 0.7) 65Cu 25Al 10 (La 0.4Ce 0.6) 65Cu 25Al 10 (La 0.6Ce 0.4) 65Cu 25Al 10 (La 0.7Ce 0.3) 65Cu 25Al 10 (La 0.8Ce 0.2) 65Cu 25Al 10 | 2 2 6 2 4 ＞9 2 2 6 6 5 4 2 2 2 2 2 4 5 7 12 12 5 | 385.2 391.7 360.2 414.8 392.4 364.6 354.2 440.6 410.7 382 397.7 410.2 394.4 419.4 448.2 438.2 427 362 362 363 363 364 368 | 440.2 447.5 405.4 480.6 466.9 439.2 407.2 485.7 476.7 432.5 462.2 455.2 433.5 482.6 503.2 482.4 463.2 444 444 446 444 440 441 | 760.6 763.2 696.9 812.2 721 697.9 747.2 - 804.9 759.2 776.2 823.6 805.9 818.2 907.2 865.6 861.8 702 698 695 690 704 713 | 55.0 55.8 45.2 65.8 74.5 74.6 53 45.1 66 50.5 64.5 45 39.1 63.2 55 44.2 36.2 82 82 83 81 76 73 |
To implementing amorphous alloy component is (La
0.5Ce
0.5)
60Cu
25Al
15, (La
0.5Ce
0.5)
55Cu
30Al
15(La
0.5Ce
0.5)
65Cu
25Al
10Sample carry out Mechanics Performance Testing, the stress-strain(ed) curve in its compression process is as shown in Figure 3.Such non-crystaline amorphous metal has the breaking tenacity about 600～760MPa as can be seen, and the part component list reveals and reaches 0.5%.
Parameter in his-and-hers watches 1 and the table 2 is analyzed, after the Cu element substitutes the Co element fully, the temperature of fusion and the glass transformation temperature of alloy decrease, and the supercooled liquid interval remains unchanged substantially, thereby help superplasticity, the thermoplastic processing of non-crystaline amorphous metal under low temperature more.
Embodiment 3
According to the chemical ingredients and the proportioning thereof of alloy of the present invention, to (La
xCe
1-x)
a(Co
yCu
1-y)
bAl
cThe amorphous formation ability of alloy system, mechanical property is studied, wherein 0＜x＜1,50≤a≤75,15≤b≤30,5≤c≤25, and a+b+c=100, wherein a, b, c are atomicity.
Its preparation method is identical with embodiment 1.
The thermodynamic property of its part enforcement alloy and partial crit size are referring to table 3.(La as can be seen
xCe
1-x)
a(Co
yCu
1-y)
bAl
cAlloy system has low temperature of fusion 671K and good thermodynamic stability, and the composition in the subregion has between the cold fluid zone of serious offense of 86K, breaking tenacity 600～1050Mpa.
Table 3 is the thermodynamic stability and the corresponding critical size of the part amorphous alloy of embodiment.
| Aloy(at％) | d c/mm | T g/K | T x/K | T l/K | ΔT x | σ max/MPa |
| (La 0.3Ce 0.7) 60(Co 22.5Cu 2.5)Al 15(La 0.3Ce 0.7) 60(Co 20Cu 5)Al 15(La 0.3Ce 0.7) 60(Co 17.5Cu 7.5)Al 15(La 0.3Ce 0.7) 60(Co 15Cu 10)Al 15(La 0.3Ce 0.7) 60(Co 12.5Cu 12.5)Al 15(La 0.3Ce 0.7) 60(Co 10Cu 15)Al 15(La 0.3Ce 0.7) 60(Co 7.5Cu 17.5)Al 15(La 0.3Ce 0.7) 60(Co 5Cu 20)Al 15(La 0.3Ce 0.7) 60(Co 2.5Cu 22.5)Al 15(La 0.5Ce 0.5) 65(Co 22.5Cu 2.5)Al 10(La 0.5Ce 0.5) 65(Co 20Cu 5)Al 10(La 0.5Ce 0.5) 65(Co 17.5Cu 7.5)Al 10(La 0.5Ce 0.5) 65(Co 15Cu 10)Al 10(La 0.5Ce 0.5) 65(Co 12.5Cu 12.5)Al 10(La 0.5Ce 0.5) 65(Co 10Cu 15)Al 10(La 0.5Ce 0.5) 65(Co 7.5Cu 17.5)Al 10 | ＞10 ＞12 ＞15 ＞15 ＞20 ＞12 ＞10 ＞8 ＞5 ＞15 ＞20 ＞30 ＞30 ＞30 ＞20 ＞15 | 440 437 435 431 424 420 412 410 403 427 426 420 412 407 400 401 | 524 523 513 510 503 498 495 483 471 453 450 445 438 432 430 430 | 881 860 847 831 823 812 799 792 784 776 799 775 757 741 725 721 | 84 86 78 79 79 78 83 73 68 26 24 25 26 25 30 29 | 1050 1000 960 920 900 880 840 830 810 - 840 780 740 700 - 650 |
| (La 0.5Ce 0.5) 65(Co 5Cu 20)Al 10(La 0.5Ce 0.5) 65(Co 2.5Cu 22.5)Al 10(La 0.7Ce 0.3) 65(Co 22.5Cu 2.5)Al 10(La 0.7Ce 0.3) 65(Co 20Cu 5)Al 10(La 0.7Ce 0.3) 75(Co 2.5Cu 12.5)Al 10(La 0.7Ce 0.3) 50(Co 5Cu 20)Al 25(La 0.7Ce 0.3) 70(Co 25Cu 22.5)Al 5 | ＞15 ＞10 ＞15 ＞15 ＞15 ＞10 ＞10 | 397 366 415 414 391 379 381 | 431 431 444 449 449 430 437 | 702 671 757 740 692 696 703 | 34 65 29 35 58 51 56 | 600 - 740 700 - 1050 - |
Parameter in his-and-hers watches 1, table 2 and the table 3 is analyzed, and when Co element and Cu element add simultaneously, the glass forming ability of alloy obviously improves, and temperature of fusion decreases, thereby helps the ultraprecise castability and the high surface manifolding performance of non-crystaline amorphous metal.
Non-crystaline amorphous metal of the present invention is compared with rare-earth-base amorphous alloy in the past has higher amorphous formation ability, lower preparation technology's cost, and the special-shaped amorphous component surface gloss good brightness of the different size for preparing, and has high strength again simultaneously, high tenacity and can returning circulates in the characteristic that processing is used, thereby can be used as small-sized machine casing, the material of main part of ultraprecise device.
Claims (7)
1, a kind of La-Ce base noncrystal alloy with high-strong toughness, low melting point, high formation ability, it is characterized in that: form by Ln (a)-TM (b)-Al (c), described Ln is La and Ce element, described TM is one or two combination in Co element or the Cu element, the atom percentage content of its a is 50～75, the atom percentage content of b is 15～30, and the atom percentage content of c is 5～25, and a+b+c=100.
2, La-Ce base noncrystal alloy according to claim 1 is characterized in that: the chemical ingredients of La-Ce base noncrystal alloy is (La
xCe
1-x)
aCo
bAl
c, and 0＜x＜1.
3, La-Ce base noncrystal alloy according to claim 1 is characterized in that: the chemical ingredients of La-Ce base noncrystal alloy is (La
xCe
1-x)
aCu
bAl
c, and 0＜x＜1.
4, La-Ce base noncrystal alloy according to claim 1 is characterized in that: the chemical ingredients of La-Ce base noncrystal alloy is (La
xCe
1-x)
a(Co
yCu
1-y)
bAl
c, and 0＜x＜1,0＜y＜1.
5, La-Ce base noncrystal alloy according to claim 1 is characterized in that: the chemical ingredients of La-Ce base noncrystal alloy is (La
0.5Ce
0.5)
65Co
20Al
15Or
(La
0.7Ce
0.3)
65Co
25Al
10Or
(La
0.5Ce
0.5)
70Co
15Al
15Or
(La
0.6Ce
0.4)
65Cu
25Al
10Or
(La
0.5Ce
0.5)
65(Co
15Cu
10)Al
10。
6, La-Ce base noncrystal alloy according to claim 1, it is characterized in that: in the alloying constituent zone, utilize copper mold casting method to prepare the above block amorphous alloy bar of diameter 2mm, obtain the non-crystaline amorphous metal bar of diameter in the subregion, prepare the amorphous bar of diameter by casting, high-pressure casting or shrend mode in the regional area greater than 30mm greater than 10mm.
7, La-Ce base noncrystal alloy according to claim 1 is characterized in that: glass transformation temperature 350K～500K, temperature of fusion 670K～1020K, the interval 15K～86K of supercooled liquid, breaking tenacity 600MPa～1200MPa, amount of plastic deformation 0.5～5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610113545 CN1936058A (en) | 2006-09-30 | 2006-09-30 | La-Ce base amorphous alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610113545 CN1936058A (en) | 2006-09-30 | 2006-09-30 | La-Ce base amorphous alloy |
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| CN101423917B (en) * | 2007-10-31 | 2010-12-22 | 比亚迪股份有限公司 | Rare-earth base amorphous alloy and method of preparing the same |
| CN101440463B (en) * | 2007-11-20 | 2010-12-22 | 比亚迪股份有限公司 | Rare-earth based amorphous alloy and manufacturing method thereof |
| CN103290341A (en) * | 2013-05-30 | 2013-09-11 | 济南大学 | Anti-corrosion block rare earth-based metal glass and annealing method thereof |
| CN103290340A (en) * | 2013-05-30 | 2013-09-11 | 济南大学 | Rare earth-based bulk metallic glass with adjustable rear earth ingredient content |
| CN104117669A (en) * | 2014-07-08 | 2014-10-29 | 太原科技大学 | Low-fire-point alloy powder and manufacturing method thereof |
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| CN108504963A (en) * | 2017-02-24 | 2018-09-07 | 中国科学院金属研究所 | A kind of La base noncrystal alloys and preparation method thereof that amorphous formation ability is excellent |
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| CN101423917B (en) * | 2007-10-31 | 2010-12-22 | 比亚迪股份有限公司 | Rare-earth base amorphous alloy and method of preparing the same |
| CN101440463B (en) * | 2007-11-20 | 2010-12-22 | 比亚迪股份有限公司 | Rare-earth based amorphous alloy and manufacturing method thereof |
| CN103290340B (en) * | 2013-05-30 | 2016-06-22 | 济南大学 | A kind of adjustable rare earth based block metal glass of rare earth composition content |
| CN103290340A (en) * | 2013-05-30 | 2013-09-11 | 济南大学 | Rare earth-based bulk metallic glass with adjustable rear earth ingredient content |
| CN103290341B (en) * | 2013-05-30 | 2015-05-20 | 济南大学 | Anti-corrosion block rare earth-based metal glass and annealing method thereof |
| CN103290341A (en) * | 2013-05-30 | 2013-09-11 | 济南大学 | Anti-corrosion block rare earth-based metal glass and annealing method thereof |
| KR101571220B1 (en) | 2013-12-20 | 2015-11-25 | 서울대학교산학협력단 | Rare earth element based high entropy bulk metallic glass |
| CN104117669A (en) * | 2014-07-08 | 2014-10-29 | 太原科技大学 | Low-fire-point alloy powder and manufacturing method thereof |
| CN104131244A (en) * | 2014-07-08 | 2014-11-05 | 太原科技大学 | Low burning point alloy ribbon and manufacturing method thereof |
| CN104128611A (en) * | 2014-07-08 | 2014-11-05 | 太原科技大学 | Low-ignition-point alloy fiber and method for manufacturing low-ignition-point alloy fiber |
| CN108504963A (en) * | 2017-02-24 | 2018-09-07 | 中国科学院金属研究所 | A kind of La base noncrystal alloys and preparation method thereof that amorphous formation ability is excellent |
| CN108504963B (en) * | 2017-02-24 | 2020-08-11 | 中国科学院金属研究所 | La-based amorphous alloy with excellent amorphous forming ability and preparation method thereof |
| CN109609880A (en) * | 2019-01-29 | 2019-04-12 | 西安工业大学 | A kind of light rare earth base block amorphous alloy and preparation method thereof containing metalloid |
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