CN102277542A - Quinary magnesium-based amorphous alloy - Google Patents
Quinary magnesium-based amorphous alloy Download PDFInfo
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- CN102277542A CN102277542A CN 201110280448 CN201110280448A CN102277542A CN 102277542 A CN102277542 A CN 102277542A CN 201110280448 CN201110280448 CN 201110280448 CN 201110280448 A CN201110280448 A CN 201110280448A CN 102277542 A CN102277542 A CN 102277542A
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Abstract
The invention discloses a quinary magnesium-based amorphous alloy, belonging to the technical field of amorphous alloy. The quinary magnesium-based amorphous alloy is characterized by being prepared with a wedge-shaped copper mould casting method. A Zn element is used for partially replacing a Cu element, and an Nd element is used for partially replacing a Y element to prepare the Mg65Cu22Zn3Y5Nd5 quinary magnesium-based amorphous alloy. Commercial high-purity (99.9wt%) block metal serves as original material; Cu-Y is smelted into intermediate alloy by an electric arc; then the intermediate alloy, pure Mg and pure Zn are put into a low-carbon steel crucible with double vents (used for introducing inert gas to protect during heating) and are heated to 750DEG C, and temperature is kept for 2h; during the 2h, the crucible is slightly shaken in fixed time to cause alloy liquid to be mixed evenly; and then, the alloy liquid is poured to a wedge-shaped copper mould which is dried in advance.
Description
Technical field
The invention belongs to the non-crystaline amorphous metal technical field, refer in particular to a kind of five yuan of magnesium base amorphous alloys.
Background technology
Magnesium is that used structure is minimum with density in metal and the alloy material.Compare with other structural metallic materials, magnesium and magnesium alloy have specific tenacity, specific rigidity height, vibration damping, electromagnetic shielding and capability of resistance to radiation are strong, easy machining, series of advantages such as easy recovery, have and important use value and wide application prospect at automobile, electronics, electrical equipment, traffic, space flight, aviation and national defense and military industrial circle, be the 3rd metalloid structured material that after iron and steel and aluminium alloy, grows up, and be called as the green engineering material of 21 century.On general magnesium alloy basis, the amorphous magnesium alloy that utilizes flash set technology to grow up has unformed atomic structure, compares with corresponding crystal alloy, and mechanical property improves greatly, and alloy strength and ductility have obtained obvious improvement.In addition,, have the characteristic of common metal and glass concurrently, present unique physics-chem characteristic owing to its unique atomic disorder structure.
The atomic scale difference is to influence one of the formation tendency of amorphous alloy and principal element of stability.If the difference of atomic scale increases, then can increase the formation tendency and the stability of amorphous alloy significantly.If the dimension scale between the atom is big more, then the atom packing intensity is big more in the liquid phase, and atom moves intensity of activation and increases, and solid-liquid interfacial energy is increased, and has increased the mobile difficulty of atom, thereby suppresses the forming core of crystallization phases, improves the amorphous formation ability of alloy.Atomic radius difference between transition element Nd, Y atomic radius and main composition element M g, Cu, the Zn is greater than 12%, and the adding of Zn, Nd element makes the component kind reach five kinds." confusion " principle that meets the design of amorphous alloy composition, can form closely stacking provisions at random, make the diffusion difficulty of atom, increase the difficulty that the long-range atom that forms complex compound is redistributed, suppress crystallization nucleation, thereby improved amorphous formation ability greatly.
Summary of the invention
The present invention develops a kind of five yuan of magnesium base amorphous alloys, it is characterized by: adopt five yuan of magnesium base amorphous alloys of wedge shape copper mold casting method preparation, partly substitute the Cu element with the Zn element respectively, partly substitute Y element with the Nd element, prepare Mg
65Cu
22Zn
3Y
5Nd
5Five yuan of magnesium base amorphous alloys.Adopting commercially available high-purity (99.9% massfraction) reguline metal is starting materials; earlier Cu-Y is become master alloy through arc melting; put in the soft steel crucible that has bilateral gas sky (feeding protection of inert gas during heating uses) with pure Mg and pure Zn again; in resistance furnace, be heated to 750 ℃; insulation 2h; regularly the jog crucible is poured in the wedge shape copper mold of prior oven dry then so that alloy liquid is even during this time.
Mg
65Cu
25Y
10Block amorphous alloy also is to adopt the preparation of wedge shape copper mold casting method; adopting commercially available high-purity (99.9% massfraction) reguline metal is starting materials; earlier Cu-Y is become master alloy through arc melting; put in the soft steel crucible that has bilateral gas sky (feeding protection of inert gas during heating uses) with pure Mg again; in resistance furnace, be heated to 750 ℃; insulation 2h, during regularly the jog crucible be poured into then in the wedge shape copper mold of prior oven dry so that alloy liquid is even.Fig. 1 is the Mg that utilizes this method preparation
65Cu
25Y
10The XRD analysis collection of illustrative plates of block amorphous alloy.Can find that from figure the overall dimension of prepared non-crystaline amorphous metal is 3mm under this experiment condition, when size increases to 3.5mm, have the mutually pairing sharp peak of crystal to exist, rather than single amorphous " steamed bun peak ".
Five yuan of Mg base block amorphous alloys preparing, as shown in Figure 2, Fig. 2 is Mg
65Cu
22Zn
3Y
5Nd
5XRD figure under the quinary alloy system different size.As can see from Figure 1, Mg
65Cu
25Y
10 3Unit's alloy, it can form complete amorphous overall dimension is 3mm.When substituting Cu with 3% Zn, the alternative Y of the Nd with 5% and form Mg
65Cu
22Zn
3Y
5Nd
5During quinary alloy, the amorphous formation ability of alloy obviously improves.From the XRD figure spectrum of Fig. 2, can see that utilize the wedge type mould can obtain the wedge test piece that complete non-crystaline amorphous metal attitude thickness reaches 4.5mm, this is than ternary Mg
65Cu
25Y
10The overall dimension of alloy has increased nearly 1.5mm.
Description of drawings
Fig. 1 Mg
65Cu
25Y
10Alloy different size as cast condition plate heart portion XRD figure spectrum
Fig. 2 Mg
65Cu
22Zn
3Y
5Nd
5Alloy different size as cast condition plate heart portion XRD figure spectrum
Embodiment
Embodiment 1
Adopt five yuan of magnesium base amorphous alloys of wedge shape copper mold casting method preparation, partly substitute the Cu element with the Zn element respectively, partly substitute Y element, prepare Mg with the Nd element
65Cu
22Zn
3Y
5Nd
5Five yuan of magnesium base amorphous alloys.Adopting commercially available high-purity (99.9% massfraction) reguline metal is starting materials; earlier Cu-Y is become master alloy through arc melting; put in the soft steel crucible that has bilateral gas sky (feeding protection of inert gas during heating uses) with pure Mg and pure Zn again; in resistance furnace, be heated to 750 ℃; insulation 2h; regularly the jog crucible is poured in the wedge shape copper mold of prior oven dry then so that alloy liquid is even during this time.As seen from Figure 2, when substituting Cu with 3% Zn, the alternative Y of the Nd with 5% and form Mg
65Cu
22Zn
3Y
5Nd
5During quinary alloy, utilize the wedge type mould can obtain the wedge test piece that complete non-crystaline amorphous metal attitude thickness reaches 4.5mm.
Comparative Examples
Adopt the wedge shape copper mold casting method to prepare Mg
65Cu
25Y
10Block amorphous alloy; adopting commercially available high-purity (99.9% massfraction) reguline metal is starting materials; earlier Cu-Y is become master alloy through arc melting; put in the soft steel crucible that has bilateral gas sky (feeding protection of inert gas during heating uses) with pure Mg again; in resistance furnace, be heated to 750 ℃; insulation 2h, during regularly the jog crucible be poured into then in the wedge shape copper mold of prior oven dry so that alloy liquid is even.Fig. 1 is the Mg that utilizes this method preparation
65Cu
25Y
10The XRD analysis collection of illustrative plates of block amorphous alloy.As can see from Figure 1, the overall dimension of prepared non-crystaline amorphous metal is 3mm with this understanding, when size increases to 3.5mm, has the mutually pairing sharp peak of crystal to exist, rather than single amorphous " steamed bun peak ".
Claims (2)
1. five yuan of magnesium base amorphous alloys is characterized by: adopt five yuan of magnesium base amorphous alloys of wedge shape copper mold casting method preparation, partly substitute the Cu element with the Zn element respectively, partly substitute Y element with the Nd element, prepare Mg
65Cu
22Zn
3Y
5Nd
5Five yuan of magnesium base amorphous alloys.Adopting commercially available high-purity (99.9% massfraction) reguline metal is starting materials; earlier Cu-Y is become master alloy through arc melting; put in the soft steel crucible that has bilateral gas sky (feeding protection of inert gas during heating uses) with pure Mg and pure Zn again; in resistance furnace, be heated to 750 ℃; insulation 2h; regularly the jog crucible is poured in the wedge shape copper mold of prior oven dry then so that alloy liquid is even during this time.
2. according to the described a kind of five yuan of magnesium base amorphous alloys of claim 1, utilize the wedge type mould can obtain the wedge test piece that complete non-crystaline amorphous metal attitude thickness reaches 4.5mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110280448 CN102277542A (en) | 2011-09-21 | 2011-09-21 | Quinary magnesium-based amorphous alloy |
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|---|---|---|---|
| CN 201110280448 CN102277542A (en) | 2011-09-21 | 2011-09-21 | Quinary magnesium-based amorphous alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108227A (en) * | 2018-10-04 | 2019-01-01 | 中国科学院宁波材料技术与工程研究所 | A kind of high-throughput preparation method of LaFeSi base magnetic refrigerating material |
| CN115519116A (en) * | 2022-10-21 | 2022-12-27 | 安徽智磁新材料科技有限公司 | High-biocompatibility magnesium-based amorphous alloy powder and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403617A (en) * | 2001-09-13 | 2003-03-19 | 中国科学院金属研究所 | Multicomponent magnesium-base amorphous alloy containing zinc element |
| CN1844433A (en) * | 2005-04-06 | 2006-10-11 | 中国科学院金属研究所 | Magnesium alloy cast into amorphous block with centimeter size |
| CN102002649A (en) * | 2010-09-16 | 2011-04-06 | 无锡南理工科技发展有限公司 | High-toughness magnesium based block body metal glass composite material and preparation method thereof |
-
2011
- 2011-09-21 CN CN 201110280448 patent/CN102277542A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403617A (en) * | 2001-09-13 | 2003-03-19 | 中国科学院金属研究所 | Multicomponent magnesium-base amorphous alloy containing zinc element |
| CN1844433A (en) * | 2005-04-06 | 2006-10-11 | 中国科学院金属研究所 | Magnesium alloy cast into amorphous block with centimeter size |
| CN102002649A (en) * | 2010-09-16 | 2011-04-06 | 无锡南理工科技发展有限公司 | High-toughness magnesium based block body metal glass composite material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108227A (en) * | 2018-10-04 | 2019-01-01 | 中国科学院宁波材料技术与工程研究所 | A kind of high-throughput preparation method of LaFeSi base magnetic refrigerating material |
| CN115519116A (en) * | 2022-10-21 | 2022-12-27 | 安徽智磁新材料科技有限公司 | High-biocompatibility magnesium-based amorphous alloy powder and preparation method thereof |
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Application publication date: 20111214 |