CN103866207A - Zr-based massive amorphous alloy with room temperature large plasticity - Google Patents
Zr-based massive amorphous alloy with room temperature large plasticity Download PDFInfo
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- CN103866207A CN103866207A CN201410075716.8A CN201410075716A CN103866207A CN 103866207 A CN103866207 A CN 103866207A CN 201410075716 A CN201410075716 A CN 201410075716A CN 103866207 A CN103866207 A CN 103866207A
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Abstract
The invention relates to a Zr-based amorphous alloy with room temperature large plasticity, relating to a massive amorphous alloy material. The invention particularly relates to a Zr-based massive amorphous alloy with both high glass forming capacity and room temperature large plasticity. The Zr-based massive amorphous alloy comprises the following four elements in percentage by weight: 3.96%-4.06% of Al, 11.3%-11.8% of Ni, 20.67%-21.07% of Cu and the balance of Zr, wherein the total mass of the elements is 100%. The Zr-based massive amorphous alloy disclosed by the invention has high glass forming capacity, can be prepared to achieve the critical dimension of phi 10 mm by adopting a common copper mould casting method, has more than 27% room temperature compression plasticity, and is nontoxic and low-cost in metal raw metal as a needed raw material, simple in preparation process, excellent in low-temperature mechanical properties and very suitable for industrial application.
Description
Technical field
The present invention relates to amorphous metallic material, be specifically related to a kind of novel Zr base block amorphous alloy with the large plasticity of room temperature.
Background technology
Zr base block amorphous alloy has the excellent mechanical properties such as high breaking tenacity, high rigidity, high elastic strain, elastic limit, high-fracture toughness and low Young's modulus.Due to the unique disordering atomic structure of Zr base noncrystal alloy itself, alloy inside lacks the lattice defect such as dislocation, twin, conventionally under room temperature and the condition lower than room temperature, can not be as crystalline material, there is lasting viscous deformation, distortion only occurs in the shear zone of height localization, thereby produces brittle rupture, has seriously restricted the industrial applications of block amorphous alloy.Thereby the Zr base noncrystal alloy new constituent that exploitation has the large plasticity of room temperature is one of current block amorphous alloy field problem demanding prompt solution.
Summary of the invention
The object of the present invention is to provide one to have the large plasticity of room temperature and high-intensity Zr base noncrystal alloy, the present invention has solved the poor deficiency of Zr base noncrystal alloy composition plastic deformation ability in room temperature environment preferably.
What the present invention proposed has the large plasticity of room temperature and high-intensity Zr base noncrystal alloy, and described Zr base noncrystal alloy is elementary composition by Zr, Al, Ni and tetra-kinds of Cu, and the mass percent of each element is:
Al: 3.96~4.06%
Ni: 11.3~11.8%
Cu:20.67~21.07%
All the other are Zr, and its total mass meets 100%.
The present invention, according to physical metallurgical principle, utilizes between two component eutectic composition and polynary eutectic composition and has certain inevitable contacting, and polynary non-crystaline amorphous metal can be by selecting appropriate two component eutectic point and scale-up factor synthetic.These eutectic points have two features, generally have lower eutectic reaction temperature, and eutectic product mostly are ol cpds.Therefore, can mix two component eutectic composition by suitable ratio, design polynary block amorphous alloy composition, make it fully approach polynary eutectic or nearly eutectic composition, and by the inhibition crystallisation process of vying each other of the each phase of eutectic, thereby obtain having the amorphous alloys of high amorphous formation ability.
In Zr-Al-Ni-Cu alloy system, the product of crystallization and crystallization is mainly Zr-Cu, Zr-Ni, the intermetallic compound of Zr-Al, therefore can think Zr-Cu, Zr-Ni, the intermetallic compound forming between Zr-Al atom pairs is the main competing phase that in this alloy system, amorphous phase forms, if in the roughly balance of precipitation ability of these competition Crystallization Phases of alloy melt, obstruction each other and restraining function increase, to suppress separating out of initial Crystallization Phases, thereby obtain the amorphous alloy component of high glass forming ability.By binary phase diagram Zr
38cu
62, Zr
64ni
36, Zr
51al
49there is lower eutectic point and its eutectic product is ol cpds, thereby we select Zr
44cu
56, Zr
51al
49, Zr
64ni
36as basic unit, can obtain following expression formula:
C
am =a (Zr
38Cu
62) + b (Zr
64Ni
36) + c (Zr
51Al
49) (a+ b+c =1)
Scale-up factor a, b, c are respectively the shared scale-up factor of component of three two component eutectics, and meet normalization condition a+ b+c=1.Comparative example coefficient a, b, c constantly adjust, thereby adjust the atom ratio of alloy system, can obtain the non-crystaline amorphous metal of different glass formation ability.Work as a=6.25/16, b=6.25/16, c=3.5/16, can obtain better one-tenth branch Zr
63.68al
3.96ni
11.30cu
21.0(mass percent).Under arc-melting ordinary copper die cast condition, can obtain the block amorphous alloy that critical size is not less than 10 mm.
The present invention has following features compared with existing Zr base block amorphous alloy:
(1) this alloy has high glass forming ability, adopts ordinary copper mould casting method can prepare critical size to reach the block amorphous alloy of 10mm.
(2) this alloy has great compression plasticity and resistance to compression breaking tenacity at ambient temperature: diameter is that the compression plasticity of the non-crystaline amorphous metal of 1.2 mm, 2 mm, 3 mm is respectively >100%, 30%, 27%, and this performance is far above the Zr base noncrystal alloy of other composition.Up to now, Zr base noncrystal alloy of the present invention is one of the most excellent composition of plastic deformation ability under room temperature environment.
(3) this alloy desired raw material is nontoxic, raw metal cheaply, and preparation technology is simple, and cryogenic mechanics performance excellence, is very suitable for industrial application.
Brief description of the drawings
Fig. 1 is the Zr of different diameter
63.68al
3.96ni
11.30cu
21.0non-crystaline amorphous metal X ray diffracting spectrum.
Fig. 2 is the Zr of different diameter
63.68al
3.96ni
11.30cu
21.0non-crystaline amorphous metal room temperature compressive stress strain curve.
Fig. 3 is the Zr of diameter 3 mm
63.68al
3.96ni
11.30cu
21.0the shear zone distribution plan of non-crystaline amorphous metal room temperature compression fracture and port side thereof; Wherein (a), for the shear zone distribution plan of non-crystaline amorphous metal room temperature compression fracture, (b) is the shear zone distribution plan of non-crystaline amorphous metal room temperature port side.
Fig. 4 is the Zr of diameter 2 mm
63.68al
3.96ni
11.30cu
21.0the shear zone distribution plan of non-crystaline amorphous metal room temperature compression fracture and port side thereof; Wherein (a), for the shear zone distribution plan of non-crystaline amorphous metal room temperature compression fracture, (b) is the shear zone distribution plan of non-crystaline amorphous metal room temperature port side.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further details.
Embodiment 1: the Zr base block amorphous alloy Zr of the present embodiment, Al, Ni, Cu, formed by Zr, Al, Ni, Cu, wherein the mass percent of each element is: Zr 63.68%, Al3.96%, Ni11.30%, Cu21.07%, this composition is best composition point of the present invention.The preparation process of alloy is: by purity be more than 99.9% Zr, Al, Ni, the ultrasonic cleaning of Cu raw metal clean after, according to target the required atom number of composition is calculated corresponding element quality.The idea balance that is 0.0001g by precision weighs desired raw material quality, weighs accurately rear stand-by.The melting of mother alloy adopts magnetic control tungsten electrode arc furnace to carry out.Accurate preparation raw material is positioned in stove, is evacuated to 6.0 × 10
-3pa, is filled with shielding gas argon gas to 0.05MPa, melting 40 ~ 60s under 250 ~ 400A current condition, and the master alloy ingot melting four to five times of repeatedly overturning, to ensure the homogeneity of mother alloy composition.It is that the argon gas of 0.04 ~ 0.07MPa carries out arc-melting that melted master alloy ingot is placed in to pressure, and then mother alloy melt adopts copper mold casting method moulding, and obtaining diameter is 1 ~ 10mm pole shape non-crystaline amorphous metal sample.
By the Zr making
63.68al
3.96ni
11.30cu
21.0non-crystaline amorphous metal bar intercepts Φ 2mm × 4mm, tests the compression performance (in the present invention, the Compressive Mechanical Properties of material adopts Instron 5500 type universal material experimental machine tests) under its room temperature.This Zr base noncrystal alloy at room temperature has yield strength 2123 MPa and >100% compression plasticity.
Embodiment 2: the difference of the present embodiment and embodiment 1 is: by the Zr making
63.68al
3.96ni
11.30cu
21.0non-crystaline amorphous metal bar intercepts Φ 2mm × 4mm, and this Zr base noncrystal alloy at room temperature has yield strength 2143 MPa and 30% compression plasticity.Other is identical with embodiment 1.
Embodiment 3: the difference of the present embodiment and embodiment 1 is: by the Zr making
63.68al
3.96ni
11.30cu
21.0non-crystaline amorphous metal bar intercepts Φ 3 mm × 6 mm, and this Zr base noncrystal alloy at room temperature has yield strength 2197MPa and 27% compression plasticity.Other is identical with embodiment 1.
As seen from Figure 1, the Zr of different size
63.68al
3.96ni
11.30cu
21.0the X-ray diffraction spectrum of non-crystaline amorphous metal is the diffuse scattering peak of typical amorphous, does not have sharp-pointed crystalline state phase diffraction peak, and the structure that shows alloy material is non-crystalline state.
As seen from Figure 2, at ambient temperature, the Zr of different diameter
63.68al
3.96ni
11.30cu
21.0when non-crystaline amorphous metal bears axial crushing deformation, exceed not fracture immediately after recoverable deformation, but after excessive viscous deformation, just send out into fracture.Diameter is the alloy of 1.2 mm, compression plasticity >100%, and yield strength is 2123 MPa MPa.Diameter is the alloy of 2 mm, compression plasticity 30%, and yield strength is 2143 MPa.Diameter is the alloy of 3 mm, compression plasticity 27%, and yield strength is 2197 MPa.
From Fig. 3,4, Zr
63.68al
3.96ni
11.30cu
21.0in at room temperature compression set process of non-crystaline amorphous metal, be typical shear fracture, near compression fracture side, occur highdensity shear zone, have propagation, the branch of shear zone simultaneously and complete a business transaction clearly, this has caused it to have large plastix strain.
Claims (4)
1. a Zr base block amorphous alloy with the large plasticity of room temperature, is characterized in that: Zr base block amorphous alloy is elementary composition by Zr, Al, Ni and tetra-kinds of Cu, and the mass percent of each element is:
Al: 3.96~4.06%
Ni: 11.3~11.8%
Cu:20.67~21.07%
All the other are Zr, and its total mass meets 100%.
2. a kind of Zr base block amorphous alloy with the large plasticity of room temperature according to claim 1, is characterized in that: diameter is the Zr base block amorphous alloy of 1.2 mm, and at ambient temperature, yield strength is 2123 MPa, and compression plasticity is greater than 100%.
3. a kind of Zr base block amorphous alloy with the large plasticity of room temperature according to claim 1, is characterized in that: the Zr base block amorphous alloy that diameter is 2mm, and at ambient temperature, yield strength is 2143 MPa, compression plasticity reaches 30%.
4. a kind of Zr base block amorphous alloy with the large plasticity of room temperature according to claim 1, is characterized in that: the Zr base block amorphous alloy that diameter is 3mm, and at ambient temperature, yield strength is 2197 MPa, compression plasticity reaches 27%.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109280864A (en) * | 2018-10-29 | 2019-01-29 | 湖南理工学院 | Zr-Al-Ni-Cu block metal glass with different cluster contents and performance |
CN110777307A (en) * | 2019-09-30 | 2020-02-11 | 东莞市逸昊金属材料科技有限公司 | Amorphous alloy material, amorphous alloy structural member using amorphous alloy material and application of amorphous alloy structural member |
CN114657480A (en) * | 2022-03-28 | 2022-06-24 | 北京科技大学 | High-plasticity phase-separated Zr-based amorphous alloy and preparation method and application thereof |
CN115948706A (en) * | 2023-03-13 | 2023-04-11 | 松诺盟科技有限公司 | Amorphous alloy high-pressure common rail pipe forging process, common rail pipe and high-pressure common rail system |
Citations (2)
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CN1475595A (en) * | 2003-07-10 | 2004-02-18 | 上海大学 | Zirconium base lump body metal-glass alloy material |
JP2012021198A (en) * | 2010-07-15 | 2012-02-02 | Tokyo Medical & Dental Univ | Amorphous alloy and biomaterial |
-
2014
- 2014-03-04 CN CN201410075716.8A patent/CN103866207A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1475595A (en) * | 2003-07-10 | 2004-02-18 | 上海大学 | Zirconium base lump body metal-glass alloy material |
JP2012021198A (en) * | 2010-07-15 | 2012-02-02 | Tokyo Medical & Dental Univ | Amorphous alloy and biomaterial |
Non-Patent Citations (1)
Title |
---|
王鸿婧: "ZrCuNiAl非晶合金成分设计与玻璃形成能力", 《金属功能材料》 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109280864A (en) * | 2018-10-29 | 2019-01-29 | 湖南理工学院 | Zr-Al-Ni-Cu block metal glass with different cluster contents and performance |
CN109280864B (en) * | 2018-10-29 | 2021-05-18 | 湖南理工学院 | Zr-Al-Ni-Cu bulk metallic glass with different cluster content and performance |
CN110777307A (en) * | 2019-09-30 | 2020-02-11 | 东莞市逸昊金属材料科技有限公司 | Amorphous alloy material, amorphous alloy structural member using amorphous alloy material and application of amorphous alloy structural member |
CN114657480A (en) * | 2022-03-28 | 2022-06-24 | 北京科技大学 | High-plasticity phase-separated Zr-based amorphous alloy and preparation method and application thereof |
CN115948706A (en) * | 2023-03-13 | 2023-04-11 | 松诺盟科技有限公司 | Amorphous alloy high-pressure common rail pipe forging process, common rail pipe and high-pressure common rail system |
CN115948706B (en) * | 2023-03-13 | 2023-05-12 | 松诺盟科技有限公司 | Amorphous alloy high-pressure common rail pipe forging process, common rail pipe and high-pressure common rail system |
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Application publication date: 20140618 |