CN103160759A - Be-containing magnesium-based amorphous composite material - Google Patents
Be-containing magnesium-based amorphous composite material Download PDFInfo
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- CN103160759A CN103160759A CN2011104071322A CN201110407132A CN103160759A CN 103160759 A CN103160759 A CN 103160759A CN 2011104071322 A CN2011104071322 A CN 2011104071322A CN 201110407132 A CN201110407132 A CN 201110407132A CN 103160759 A CN103160759 A CN 103160759A
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Abstract
The invention discloses a Be-containing magnesium-based amorphous composite material. An alloy is characterized by comprising the components in atomic percent shown in the formula of (Mg0.81Ni0.08Zn0.05Y0.06)100 - xBex (x ranges from 1 to 6), and comprising an impurity element O in atomic percent of not greater than 0.002%. According to the composite material disclosed by the invention, a long period phase is formed by adding element Ni, element Zn and element Y together; and the purpose of adding element Be is to increase the entropy of the alloy and change the internal atomic arrangement structure of the alloy. Compared with the existing magnesium-based amorphous composite material, the composite material disclosed by the invention is good in comprehensive mechanical property; the problem of brittle failure of magnesium-based amorphous alloy is solved; and a way with a great prospect is provided for the practicability of amorphous alloy composite material.
Description
Technical field
The invention belongs to the amorphous composite technical field, be specifically related to a kind of have a long-periodic structure contain the magnesium base amorphous matrix material of Be.
Background technology
Magnesium is the Patterns for Close-Packed Hexagonal Crystal structure, its stacking ordination number is the two-layer stacking provisions of AB, and so-called magnesium alloy long period stacking structure is exactly than the longer stacking order of two-layer atom stacking order, as 6H (ABCBCB '), 10H (ABACBCBCAC), 14H (ACBCBABABABCBC), (H represents six structures for 18R (its sequence is ABABABCACACABCBCBC) and 24R (ABABABABCACACACABCBCBCBC), R represents water chestnut face structure, and the numeral of front is stamped the number of plies for heap).
1994, Luo etc. in the Mg-Zn-Y alloy reported first 18R long-periodic structure.Calendar year 2001, Kawamura etc. have prepared yield strength by the method for rapid solidification/powder metallurgy and have surpassed 600MPa, the Mg97Zn1Y2(atomic percent of unit elongation 5%, lower same) alloy, and this alloy also has excellent high-temperature yield strength and the superplasticity under high strain rate, and this makes the research to long-periodic structure enhancing magnesium alloy become a focus.Kawamura in 2004 etc. prepare again yield strength and reach 375MPa, and unit elongation arrives 4% As-extruded long-periodic structure enhancing Mg97ZnY2.Matsuura in 2005 etc. are at the Mg of rapid solidification
98Cu
1Y
1Found the long-periodic structure of amorphous and 14H in band, there is the alloy system of long-periodic structure in this is to expand to Mg-Cu-Y system by Mg-Zn-Y.2006, it is base block amorphous that the use water-cooled copper mold casting methods such as Hui Xidong have successfully been prepared 6H long-periodic structure enhancing magnesium, its compressive strain arrival 18%, and compressed rupture strength arrives 1.2GPa.2008, the long-periodic structure of discovery 18R in the Mg-Ni-Y alloy of the water cooled copper moulds such as Itoi preparation.
Present research is found, long-periodic structure strengthens magnesium alloy can be divided into two classes according to macrocyclic formation condition, the first type comprises the alloy systems such as Mg-Y-Zn, Mg-Dy-Zn, Mg-Ho-Zn and Mg-Er-Zn, long-periodic structure in these alloy systems forms in process of setting, the type of long-periodic structure is 18R, but by high temperature annealing, its 18R structure fundamental transformation is 14H.The second type comprises the alloy systems such as Mg-Gd-Zn, Mg-Tb-Zn and Mg-Tm-Zn, does not have long-periodic structure or fewer in its as cast condition, separates out from matrix Mg supersaturated solid solution by 14H long-periodic structure after high temperature annealing.Also find in addition also to have formed these 5 kinds dissimilar LPSO structures of 6H, l0H, 14H, 18R and 24R in Mg-RE-Zn/Cu (Mg-Gd-Zn, Mg-Sm-Zn, Mg-Er-Zn etc.) alloy, thereby make this LPSO structure become the study hotspot problem of magnesium alloy research field.
The present invention intends disclosing a kind of Mg-Ni-Zn-Y-Be amorphous composite, changes the atomic arrangement structure of the magnesium base amorphous matrix material with long-periodic structure by adding element Be.Be and Mg solid-state or even liquid under do not dissolve each other, and the atomic size of Be is very little, can carry heavy alloyed entropy, thus the Be element add the structure that can change alloy, make the comprehensive mechanical property of alloy all obtain raising to a certain degree.
Summary of the invention
The invention provides the magnesium base amorphous matrix material of a kind of Be of containing, its objective is the comprehensive mechanical property that improves magnesium base amorphous matrix material, prepare and have compressive strength at room temperature 〉=657MPa, the amorphous composite of strain rate 〉=16.3%.
For achieving the above object, the present invention is by the following technical solutions:
A kind of Be magnesium-based amorphous alloy composite material that contains, it is characterized in that: the component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
100-xBe
x, x=1 ~ 6.
Impurity element and atomic percent are O≤0.002%.
Compressive strength at room temperature 〉=the 657MPa of magnesium base amorphous matrix material, strain rate 〉=16.3%.
The present invention changes the atomic structure of magnesium base amorphous matrix material by adding the Be element, has improved the comprehensive mechanical property of alloy.
Description of drawings:
Fig. 1 is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
95Be
5The SEM photo that alloy is 2000 times;
Fig. 2 is Mg
81Ni
8Zn
5Y
6The SEM photo that alloy is 2000 times;
Fig. 3 is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
95Be
5Alloy and Mg
81Ni
8Zn
5Y
6The diameter of alloy is the stress-strain(ed) curve of 2mm sample.
Embodiment:
The present invention discloses the magnesium base amorphous matrix material of a kind of Be of containing, and has higher intensity and good plasticity, thereby has solved magnesium base amorphous alloy brittle failure problem, for the application of amorphous composite provides a very promising approach.
The component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
100-xBe
x(x=1 ~ 6), impurity element and atomic percent are O≤0.002%.
The characteristics of above-mentioned amorphous composite are:
Compressive strength at room temperature 〉=657MPa, strain rate 〉=16.3%.
The present invention adds Ni, Zn and the Y element with strengthening effect by uniting, and makes they and Mg form Mg
12ZnY long period phase.Experiment shows, Mg
12ZnY phase long-periodic structure is the 6H structure of being stamped by ABCBCB ' heap, and wherein A and B ' are the atomic shells that is rich in Zn and Y, and its structure and desirable 6H type magnesium are variant, can improve the comprehensive mechanical property of amorphous alloy composite material.Add the purpose of Be element and carry heavy alloyed entropy, change the inner atomic arrangement structure of alloy, further put forward heavy alloyed mechanical property.
The above-mentioned Be of containing magnesium base long period amorphous alloy composite material prepares by following steps:
(1) batching: raw material is that purity is 99.9% pure Mg, 99.9% pure Ni, 99.9% pure Cu, 99.9% pure Y and 99.9% pure Be, and the atomic percent of each element is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
100-xBe
x(x=1 ~ 6), foreign matter content O≤0.002%;
(2) melting: at first with electric arc furnace, high-melting-point element Cu, Y, Ni and Be are smelted into master alloy, master alloy and element M g are carried out melting with boron nitride crucible in well formula resistance furnace, utilize N
2And SF
6Mixed gas is as shielding gas;
(3) casting: molten metal liquid is poured into cylinder sample.
Describe the present invention below in conjunction with specific embodiment, need to prove, protection scope of the present invention is not limited in following embodiment.
Embodiment 1:
A kind of Be magnesium-based amorphous alloy composite material that contains, it is characterized in that: the component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
99Be
1
The preparation method is as follows:
(1) batching: raw material is that purity is 99.9% pure Mg, 99.9% pure Ni, 99.9% pure Cu, 99.9% pure Y and 99.9% pure Be, and the atomic percent of each element is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
99Be
1, foreign matter content O≤0.002%;
(2) melting: at first with electric arc furnace, high-melting-point element Cu, Y, Ni and Be are smelted into master alloy, master alloy and element M g are carried out melting with boron nitride crucible in well formula resistance furnace, utilize N
2And SF
6Mixed gas is as shielding gas;
(3) casting: molten metal liquid is poured into the cylinder sample that diameter is 2mm.
Compressive strength at room temperature 〉=the 657MPa of magnesium base amorphous matrix material, strain rate 〉=16.3%.
Embodiment 2:
A kind of Be magnesium-based amorphous alloy composite material that contains, it is characterized in that: the component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
98Be
2
The preparation method is as follows:
(1) batching: raw material is that purity is 99.9% pure Mg, 99.9% pure Ni, 99.9% pure Cu, 99.9% pure Y and 99.9% pure Be, and the atomic percent of each element is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
98Be
2, foreign matter content O≤0.002%;
(2) melting: at first with electric arc furnace, high-melting-point element Cu, Y, Ni and Be are smelted into master alloy, master alloy and element M g are carried out melting with boron nitride crucible in well formula resistance furnace, utilize N
2And SF
6Mixed gas is as shielding gas;
(3) casting: molten metal liquid is poured into the cylinder sample that diameter is 2mm.
Compressive strength at room temperature 〉=the 661MPa of magnesium base amorphous matrix material, strain rate 〉=17%.
Embodiment 3:
A kind of Be magnesium-based amorphous alloy composite material that contains, it is characterized in that: the component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
97Be
3
The preparation method is as follows:
(1) batching: raw material is that purity is 99.9% pure Mg, 99.9% pure Ni, 99.9% pure Cu, 99.9% pure Y and 99.9% pure Be, and the atomic percent of each element is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
97Be
3, foreign matter content O≤0.002%;
(2) melting: at first with electric arc furnace, high-melting-point element Cu, Y, Ni and Be are smelted into master alloy, master alloy and element M g are carried out melting with boron nitride crucible in well formula resistance furnace, utilize N
2And SF
6Mixed gas is as shielding gas;
(3) casting: molten metal liquid is poured into the cylinder sample that diameter is 2mm.
Compressive strength at room temperature 〉=the 670MPa of magnesium base amorphous matrix material, strain rate 〉=17.2%.
Embodiment 4:
A kind of Be magnesium-based amorphous alloy composite material that contains, it is characterized in that: the component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
96Be
4
The preparation method is as follows:
(1) batching: raw material is that purity is 99.9% pure Mg, 99.9% pure Ni, 99.9% pure Cu, 99.9% pure Y and 99.9% pure Be, and the atomic percent of each element is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
96Be
4, foreign matter content O≤0.002%;
(2) melting: at first with electric arc furnace, high-melting-point element Cu, Y, Ni and Be are smelted into master alloy, master alloy and element M g are carried out melting with boron nitride crucible in well formula resistance furnace, utilize N
2And SF
6Mixed gas is as shielding gas;
(3) casting: molten metal liquid is poured into the cylinder sample that diameter is 2mm.
Compressive strength at room temperature 〉=the 675MPa of magnesium base amorphous matrix material, strain rate 〉=17.3%.
Embodiment 5:
A kind of Be magnesium-based amorphous alloy composite material that contains, it is characterized in that: the component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
95Be
5
The preparation method is as follows:
(1) batching: raw material is that purity is 99.9% pure Mg, 99.9% pure Ni, 99.9% pure Cu, 99.9% pure Y and 99.9% pure Be, and the atomic percent of each element is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
95Be
5, foreign matter content O≤0.002%;
(2) melting: at first with electric arc furnace, high-melting-point element Cu, Y, Ni and Be are smelted into master alloy, master alloy and element M g are carried out melting with boron nitride crucible in well formula resistance furnace, utilize N
2And SF
6Mixed gas is as shielding gas;
(3) casting: molten metal liquid is poured into the cylinder sample that diameter is 2mm.
Compressive strength at room temperature 〉=the 689MPa of magnesium base amorphous matrix material, strain rate 〉=18%.
Fig. 1 is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
95Be
5The SEM photo that alloy is 2000 times;
Fig. 2 is Mg
81Ni
8Zn
5Y
6The SEM photo that alloy is 2000 times;
Fig. 3 is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
95Be
5Alloy and Mg
81Ni
8Zn
5Y
6The diameter of alloy is the stress-strain(ed) curve of 2mm sample.
Embodiment 6:
A kind of Be magnesium-based amorphous alloy composite material that contains, it is characterized in that: the component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
94Be
6
The preparation method is as follows:
(1) batching: raw material is that purity is 99.9% pure Mg, 99.9% pure Ni, 99.9% pure Cu, 99.9% pure Y and 99.9% pure Be, and the atomic percent of each element is (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
94Be
6, foreign matter content O≤0.002%;
(2) melting: at first with electric arc furnace, high-melting-point element Cu, Y, Ni and Be are smelted into master alloy, master alloy and element M g are carried out melting with boron nitride crucible in well formula resistance furnace, utilize N
2And SF
6Mixed gas is as shielding gas;
(3) casting: molten metal liquid is poured into the cylinder sample that diameter is 2mm.
Compressive strength at room temperature 〉=the 675MPa of magnesium base amorphous matrix material, strain rate 〉=17%.
Claims (3)
1. one kind contains the magnesium base amorphous matrix material of Be, and it is characterized in that: the component of described alloy and atomic percent are (Mg
0.81Ni
0.08Zn
0.05Y
0.06)
100-xBe
x, x=1 ~ 6.
2. a kind of magnesium base amorphous matrix material of Be that contains according to claim 1, it is characterized in that: impurity element and mass percent are O≤0.002%.
3. a kind of magnesium base amorphous matrix material of Be that contains according to claim 1, is characterized in that: the compressive strength at room temperature 〉=657MPa of magnesium-based amorphous alloy composite material, strain rate 〉=16.3%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602930A (en) * | 2013-12-03 | 2014-02-26 | 沈阳工业大学 | Magnesium-matrix amorphous composite material containing high-melting point element |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418423A (en) * | 2008-12-01 | 2009-04-29 | 沈阳工业大学 | Magnesium base amorphous alloy and composite material thereof |
| CN102129890A (en) * | 2011-01-11 | 2011-07-20 | 北京航空航天大学 | Amorphous alloy-based optical focusing lens and preparation method thereof |
-
2011
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418423A (en) * | 2008-12-01 | 2009-04-29 | 沈阳工业大学 | Magnesium base amorphous alloy and composite material thereof |
| CN102129890A (en) * | 2011-01-11 | 2011-07-20 | 北京航空航天大学 | Amorphous alloy-based optical focusing lens and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602930A (en) * | 2013-12-03 | 2014-02-26 | 沈阳工业大学 | Magnesium-matrix amorphous composite material containing high-melting point element |
| CN103602930B (en) * | 2013-12-03 | 2016-06-15 | 沈阳工业大学 | Magnesium base amorphous composite containing high-melting-point element |
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