U.S. patent application number 12/275560 was filed with the patent office on 2009-06-04 for zr-based amorphous alloy and a preparing method thereof.
Invention is credited to Qing Gong, Linlin Jiang, Kun Lu, Faliang Zhang.
Application Number | 20090139612 12/275560 |
Document ID | / |
Family ID | 40260534 |
Filed Date | 2009-06-04 |
United States Patent
Application |
20090139612 |
Kind Code |
A1 |
Lu; Kun ; et al. |
June 4, 2009 |
ZR-BASED AMORPHOUS ALLOY AND A PREPARING METHOD THEREOF
Abstract
In one aspect, a Zr-based amorphous alloy comprises Zr, Ti, Cu,
Ni, Fe, Be, and Sn. In another aspect, a Zr-based amorphous alloy
comprises about 30-75 atomic percent of (Zr.sub.xTi.sub.ySn.sub.z),
about 10-35 atomic percent of (Cu.sub.mNi.sub.n), about 0.1-15
atomic percent of Fe, and about 0.1-35 atomic percent of Be.
Reference numerals x, y and z are atomic fractions, and x+y+z
equals to 1, wherein x is about 0.6-0.85, and z is in the range of
about 0.01x-0.1x. Reference numerals m and n are atomic fractions,
and m+n equals to 1, and wherein m is about 0.5-0.65. In yet
another aspect, a method for preparing a Zr-based amorphous alloy
comprises melting a raw material comprising Zr, Ti, Cu, Ni, Fe, Be,
and Sn to form an alloy mixture; and molding the alloy mixture to
form the amorphous alloy.
Inventors: |
Lu; Kun; (Shenzhen, CN)
; Jiang; Linlin; (Shenzhen, CN) ; Zhang;
Faliang; (Shenzhen, CN) ; Gong; Qing;
(Shenzhen, CN) |
Correspondence
Address: |
BRINKS HOFER GILSON & LIONE
P.O. BOX 10395
CHICAGO
IL
60610
US
|
Family ID: |
40260534 |
Appl. No.: |
12/275560 |
Filed: |
November 21, 2008 |
Current U.S.
Class: |
148/538 ;
148/403 |
Current CPC
Class: |
C22C 45/10 20130101;
C22C 1/002 20130101; C22C 16/00 20130101 |
Class at
Publication: |
148/538 ;
148/403 |
International
Class: |
C22F 1/16 20060101
C22F001/16; C22C 45/10 20060101 C22C045/10 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 30, 2007 |
CN |
200710187786.2 |
Claims
1. A Zr-based amorphous alloy, comprising: Zr, Ti, Cu, Ni, Fe, Be,
and Sn.
2. The amorphous alloy according to claim 1, further comprising one
or both of ETM and LTM, wherein ETM comprises at least one element
selected from Group IIIB, Group IVB, Group VB and Group VIB of the
Element Periodic Table, provided that ETM is not Zr or Ti, wherein
LTM comprises at least one element selected from Group IB, Group
IIB, Group VIIB, Group VIII of the Element Periodic Table, provided
that LTM is not Cu, Ni or Fe.
3. The amorphous alloy according to claim 2, which comprises about
30-75 atomic percent of (Zr.sub.xTi.sub.ySn.sub.z), about 0-15
atomic percent of ETM, about 10-35 atomic percent of
(Cu.sub.mNi.sub.n), about 0.1-15 atomic percent of Fe, about 0-15
atomic percent of LTM, and about 0.1-35 atomic percent of Be,
wherein x, y and z are atomic fractions, and x+y+z equals to 1;
wherein x is about 0.6-0.85, and z is in the range of about 0.01x
-0.1x; wherein m and n are atomic fractions, and m+n equals to 1;
and wherein m is about 0.5-0.65.
4. The amorphous alloy according to claim 3, which comprises about
40-60 atomic percent of (Zr.sub.xTi.sub.ySn.sub.z), about 0-10
atomic percent of ETM, about 15-25 atomic percent of
(Cu.sub.mNi.sub.n), about 0.5-5 atomic percent of Fe, about 0-10
atomic percent of LTM, and about 15-25 atomic percent of Be.
5. The amorphous alloy according to claim 2, wherein ETM is one or
two elements selected from the group consisting of Sc, Yt, La, Ce,
Pr, Nd, Hf, V, Nb, Ta, Cr, Mo, and W.
6. The amorphous alloy according to claim 2, wherein LTM is one or
two elements selected from the group consisting of Mn, Tc, Re, Ru,
Os, Co, Rh, Ir, Pd, Pt, Ag, Au, Zn, Cd, and Hg.
7. The amorphous alloy according to claim 2, wherein ETM and LTM
together comprises 1-3 elements.
8. The amorphous alloy according to claim 1, the critical dimension
of which is large than about 1 mm.
9. A Zr-based amorphous alloy, comprising about 30-75 atomic
percent of (Zr.sub.xTi.sub.ySn.sub.z), about 10-35 atomic percent
of (Cu.sub.mNi.sub.n), about 0.1-15 atomic percent of Fe, and about
0.1-35 atomic percent of Be, wherein x, y and z are atomic
fractions, and x+y+z equals to 1, wherein x is about 0.6-0.85, and
z is in the range of about 0.01x -0.1x; wherein m and n are atomic
fractions, and m+n equals to 1; and wherein m is about
0.5-0.65.
10. A method for preparing a Zr-based amorphous alloy comprising:
melting a raw material comprising Zr, Ti, Cu, Ni, Fe, Be, and Sn to
form an alloy mixture; and molding the alloy mixture to form the
amorphous alloy.
11. The method according to claim 10, wherein the raw material
further comprises one or both of ETM and LTM, wherein ETM comprises
at least one element selected from Group IIIB, Group IVB, Group VB
and Group VIB of the Element Periodic Table, provided that ETM is
not Zr or Ti, wherein LTM comprises at least one element selected
from Group IB, Group IIB, Group VIIB, Group VIII of the Element
Periodic Table, provided that LTM is not Cu, Ni or Fe.
12. The method according to claim 11, wherein the elements in the
raw material have the following ratio:
(Zr.sub.xTi.sub.ySn.sub.z).sub.a:ETM.sub.b:(Cu.sub.mNi.sub.n).sub.c:Fe.su-
b.d:LTM.sub.e:Be.sub.f, wherein a, b, c, d, e and f are atomic
percentages; wherein a is about 30-75%, b is about 0-15%, c is
about 10-35%, d is about 0.1-15%, e is about 0-15%, and f is about
0.1-35%, wherein x, y and z are atomic fractions, and x+y+z equals
to 1, wherein x is about 0.6-0.85, and z is in the range of about
0.01x -0.1x; wherein m and n are atomic fractions, and m+n equals
to 1; and wherein m is about 0.5-0.65.
13. The method according to claim 12, wherein a is about 40-60%, b
is about 0-10%, c is about 15-25%, d is about 0.5-5%, e is about
0-10%, and f is about 15-25%.
14. The method according to claim 11, wherein ETM is one or two
elements selected from the group consisting of Sc, Yt, La, Ce, Pr,
Nd, Hf, V, Nb, Ta, Cr, Mo, and W.
15. The method according to claim 11, wherein LTM is one or two
elements selected from the group consisting of Mn, Tc, Re, Ru, Os,
Co, Rh, Ir, Pd, Pt, Ag, Au, Zn, Cd, and Hg.
16. The method according to claim 11, wherein ETM and LTM together
comprises 1-3 elements.
17. The method according to claim 10, wherein the melting step
comprises: melting the raw material to form a molten mixture;
cooling the molten mixture to form at least one ingot; and
re-melting the at least one ingot to form the alloy mixture.
18. The method according to claim 10, wherein the raw material is
melted under a vacuum of less than about 5 Pa.
19. The method according to claim 10, wherein the raw material is
melted at a temperature of about 1,000-2,700.degree. C.
20. The method according to claim 10, wherein the molding is a cold
molding process.
21. The method according to claim 10, wherein the cooling speed of
the cooling molding process is about 10-10.sup.4 K/s.
22. The method according to claim 10, wherein the molding is a
process selected from a group consisting of melt-spinning, copper
mold casting, suction casting, die casting, jetting molding, and
water quenching.
23. The method according to claim 10, wherein the raw material is
melted in the presence of an inert gas.
24. The method according to claim 23, wherein the inert gas is one
or more gases selected from the group consisting of SF.sub.6 and
Group Zero gases.
Description
[0001] The present application claims priority to Chinese Patent
Application No. 200710187786.2, filed Nov. 30, 2007, the entirety
of which is hereby incorporated by reference.
FIELD OF THE DISCLOSURE
[0002] The present disclosure relates to a Zr-based amorphous alloy
and a preparing method thereof.
BACKGROUND OF THE DISCLOSURE
[0003] Amorphous metallic alloys are disordered in the long range
but ordered in the short range. They have desirable physical and
chemical properties, such as high strength, high hardness, high
wearing resistance, high corrosion resistance, relatively wide
elastic range, high electric resistance, good superconductivity,
and low magnetic loss. Amorphous metallic alloys have huge
potential when used as structural materials. They are widely used
in many fields such as mechanics, IT electronics, the military
industry and so on.
[0004] However, some characteristics of the amorphous metallic
alloys limit their applications. For example, it is difficult to
manufacture large size amorphous alloys. To obtain the disordered
structure in the long range, atoms' spontaneous movement in the
freezing process shall be restrained. The higher the cooling speed
is, the lower the possibility is for the atoms to form orderly
arrayed crystalline materials via spontaneous movement. But as
product size increases, the internal cooling speed within the
product is declining. Thus, the internal amorphous degree is low in
the long range and it is difficult to form large size amorphous
structures.
[0005] Also, it is difficult to effectively improve the plasticity
characteristics of the amorphous materials. Due to their particular
structure, while under stress, the amorphous alloy materials do not
have the internal deformation mechanism as crystalline materials do
in order to resist deformation. So when the stress reaches a
certain degree, the amorphous alloy material may break suddenly,
which may lead to accidents. Thus, the applications of the
amorphous alloy materials as structural materials are limited.
[0006] Zhao et al. discloses a Zr--Ti--Cu--Ni--Be--Fe bulk
amorphous alloy and its preparing method (Forming And Performance
of The Zr--Ti--Cu--Ni--Be--Fe Bulk Amorphous Alloy And
Amorphous-Based Nano-Composite, Zhao De Qian, Zhang Yong, Pan Ming
Xiang, Meng Li Qin, Wang Wei Hua, Acta Metallurgica Sinica, March,
2000). The method comprises adding 2-10 atomic percent of Fe to
form a nano crystalline composite material in order to change the
magnetic susceptibility of the material. As a result of the
addition of Fe in increasing amount, sharp diffraction peaks begin
to appear in the XRD diagram, indicating crystallization. It shows
that the addition of relatively large amount of iron is effective
in affecting the amorphous alloy forming ability. Zhao et al.
however does not address the issues of large size amorphous alloy
manufacturing and the plasticity of the amorphous alloy
materials.
SUMMARY OF THE DISCLOSURE
[0007] In one aspect, a Zr-based amorphous alloy comprises Zr, Ti,
Cu, Ni, Fe, Be, and Sn.
[0008] In another aspect, a Zr-based amorphous alloy comprises
about 30-75 atomic percent of (Zr.sub.xTi.sub.ySn.sub.z), about
10-35 atomic percent of (Cu.sub.mNi.sub.n), about 0.1-15 atomic
percent of Fe, and about 0.1-35 atomic percent of Be. Reference
numerals x, y and z are atomic fractions, and x+y+z equals to 1,
wherein x is about 0.6-0.85, and z is in the range of about 0.01x
-0.1x. Reference numerals m and n are atomic fractions, and m+n
equals to 1, and wherein m is about 0.5-0.65.
[0009] In yet another aspect, a method for preparing a Zr-based
amorphous alloy comprises melting a raw material comprising Zr, Ti,
Cu, Ni, Fe, Be, and Sn to form an alloy mixture; and molding the
alloy mixture to form the amorphous alloy.
DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is the quasi-three component phase diagram (Zr, Ti,
Sn)--(Cu, Ni)--(Be, Fe) of the amorphous alloy.
[0011] FIG. 2 is the stress-strain diagram of the amorphous alloy
prepared in Example 1 and Control 1.
[0012] FIG. 3 is the XRD diagram of the amorphous alloy prepared in
the Examples 1-5 and Control 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] According to one embodiment of the present disclosure, a
Zr-based amorphous alloy is provided. The Zr-based amorphous alloy
comprises about 30-75 atomic percent of (Zr.sub.xTi.sub.ySn.sub.z),
about 0-15 atomic percent of ETM, about 10-35 atomic percent of
(Cu.sub.mNi.sub.n), about 0.1-15 atomic percent of Fe, about 0-15
atomic percent of LTM, and about 0.1-35 atomic percent of Be. More
preferably, the Zr-based amorphous alloy comprises about 40-60
atomic percent of (Zr.sub.xTi.sub.ySn.sub.z), about 0-10 atomic
percent of ETM, about 15-25 atomic percent of (Cu.sub.mNi.sub.n),
about 0.5-5 atomic percent of Fe, about 0-10 atomic percent of LTM,
and about 15-25 atomic percent of Be. Reference numerals x, y and z
are atomic fractions, and x+y+z equals to 1. Preferably, x is about
0.6-0.85, and z is in the range of about 0.01x -0.1x. Reference
numerals m and n are atomic fractions, and m+n equals to 1.
Preferably, m is about 0.5-0.65.
[0014] ETM is one or more elements selected from Group IIIB, Group
IVB, Group VB and Group VIB of the Element Periodic Table,
excluding Zr and Ti. Preferably, ETM is one or two elements
selected from Sc, Yt, La, Ce, Pr, Nd, Hf, V, Nb, Ta, Cr, Mo, W. LTM
is one or more elements selected from Group IB, Group VIIB and
Group VIII of the Element Periodic Table, excluding Cu, Ni, and Fe.
Preferably, LTM is one or two elements selected from Mn, Tc, Re,
Ru, Os, Co, Rh, Ir, Pd, Pt, Ag, Au, Zn, Cd, Hg. Preferably, ETM and
LTM includes 1-3 elements.
[0015] Referring to FIG. 1, the quasi-three component phase diagram
of the amorphous alloy composition is shown. The large
parallelogram area is the amorphous alloy forming area, the
boundary of which is determined by the composition range of the
amorphous alloy according to one embodiment of the present
disclosure. The small parallelogram area is the preferred amorphous
alloy forming area, the boundary of which is determined by the
preferred composition range of the amorphous alloy according to one
embodiment of the present disclosure. The three vertexes of the
quasi-three component phase diagram respectively represent the
elements in the amorphous alloy. The alloy in FIG. 1 does not
include ETM and LTM. The numbers on each axis represent the atomic
percentages of the elements in the alloy.
[0016] According to another embodiment of the present disclosure, a
method for preparing a Zr-based amorphous alloy is provided. The
method comprises vacuum melting an amorphous alloy material and
cooling the amorphous alloy material to form an amorphous alloy,
both under inert gas.
[0017] The material for preparing the Zr-based amorphous alloy
comprises Zr, Ti, Cu, Ni, Fe, and Be. The material for preparing
the Zr-based amorphous alloy can also comprise Sn, and optionally
ETM and LTM.
[0018] The amount of each element added should be adjusted such
that the elements in the raw material have the following ratio:
(Zr.sub.xTi.sub.ySn.sub.z).sub.a:ETM.sub.b:(Cu.sub.mNi.sub.n).sub.c:Fe.su-
b.d:LTM.sub.e:Be.sub.f, wherein a, b, c, d, e and f, x, y and z, m
and n, ETM, and LTM are as defined above.
[0019] In the method for preparing the Zr-based amorphous alloy,
any suitable melting method can be used. For example, the melted
raw materials should be mixed first, and then cooled to form
ingots. In this step, the raw materials can be melted in an
electric arc melting equipment or an induction melting equipment.
The melting temperature and time differ to some extent according to
the heating process selected. Usually, the melting temperature can
be about 1,000-2,700.degree. C., preferably about
1,500-2,000.degree. C. The melting time is about 5-20 minutes. The
vacuum level is not higher than about 200 Pa, preferably about
0.01-5 Pa.
[0020] As a pre-process before molding, the ingots may be crushed
if the molding process so requires. The ingots then can be
re-melted and molded. Electric arc melting, induction melting, and
resistance melting are commonly used in the re-melting process. The
re-melting temperature can be about 1,000-2,300.degree. C.,
preferably about 1,000-1,500.degree. C. The vacuum level is not
higher than about 200 Pa, preferably about 0.01-5 Pa.
[0021] Any suitable molding method can be used to form the
amorphous alloy. For example, melt-spinning, copper mold casting,
suction casting, die casting, jetting molding, or water quenching
can be used. The cooling speed of the molding process can be about
10-10.sup.4 K/s. Since the critical dimensions differ among
different components, different molding methods can be selected.
The inert gas can be one or more elements selected from the
SF.sub.6 gas and Group Zero elements of the Element Periodic
Table.
EXAMPLE 1
[0022] A preparation method of a Zr-based amorphous alloy is
illustrated in this example.
[0023] Raw materials Zr, Ti, Sn, Cu, Ni, Fe, Be (about 25 grams)
were added to an electric arc melting equipment (Shen Yang
Scientific Instrument Manufacturing Company Limited). The ratios of
the raw materials were as follows:
(Zr.sub.0.74Ti.sub.0.25Sn.sub.0.01).sub.55.34(Cu.sub.0.56Ni.sub.0.44).sub-
.20.65Fe.sub.1.96Be.sub.22.05. The equipment was vacuumized to
about 5 Pa. The raw material was melted at about 2,000.degree. C.
under Ar protection for about 6 minutes. The molten master alloy
was mixed sufficiently, and then cooled into an ingot. The ingot
was re-melted at about 1,500.degree. C. using electric arc melting,
and then cooled in a copper mold casting process with a cooling
speed of about 10.sup.2 k/s to obtain the Zr-based amorphous alloy
sample C1.
EXAMPLE 2
[0024] Another preparation method of a Zr-based amorphous alloy is
illustrated in this example.
[0025] Raw materials Zr, Ti, Sn, Cu, Ni, Fe, Be (about 200 kg) were
added to an induction melting equipment (Zhongbei Technology). The
ratios of the raw materials were as follows:
(Zr.sub.0.74Ti.sub.0.25Sn.sub.0.01).sub.55.34(Cu.sub.0.56Ni.sub.0.44).sub-
.20.65Fe.sub.1.96Be.sub.22.05. The equipment was vacuumized to
about 5 Pa. The raw materials were melted at about 1,800.degree. C.
under Ar protection for about 10 minutes. The molten master alloy
was mixed sufficiently, and then cooled into an ingot. The ingot
was re-melted at about 1,200.degree. C. using resistance heating,
and then cooled in a die-casting process with a cooling speed of
about 10.sup.4 k/s to obtain the Zr-based amorphous alloy sample
C2.
EXAMPLE 3
[0026] Yet another preparation method of a Zr-based amorphous alloy
is illustrated in this example.
[0027] Raw materials Zr, Ti, Sn, Cu, Ni, Fe, Be (about 20 g) were
added to a quartz tube (Zhongbei Technology). The ratios of the raw
materials were as follows:
(Zr.sub.0.80Ti.sub.0.17Sn.sub.0.03).sub.40Y.sub.5Nb.sub.5(Cu.sub.0.64Ni.s-
ub.0.36).sub.25Fe.sub.5Be.sub.20. The tube was vacuumized to about
200 Pa. The raw materials were melted at about 2,000.degree. C. by
induction heating under Ar protection for about 5 minutes. The
molten master alloy was mixed sufficiently, and then cooled into an
ingot. The ingot was re-melted at about 1,500.degree. C. by
induction heating, and then cooled in a water quenching process
with a cooling speed of about 10.sup.3 k/s to obtain the Zr-based
amorphous alloy sample C3.
EXAMPLE 4
[0028] Still another preparation method of a Zr-based amorphous
alloy is illustrated in this example.
[0029] Raw materials Zr, Ti, Sn, Cu, Ni, Fe, Be (about 200 kg) were
added into an induction melting equipment. The ratios of the raw
materials were as follows:
(Zr.sub.0.65Ti.sub.0.29Sn.sub.0.06).sub.50(Cu.sub.0.5Ni.sub.0.5).sub.20Co-
.sub.10Fe.sub.3Be.sub.17. The equipment was vacuumized to about 5
Pa. The raw materials were induction melted at about 1,800.degree.
C. under Ar protection for about 10 minutes. The molten master
alloy was mixed sufficiently, and then cooled it into an ingot. The
ingot was re-melted at about 1,000.degree. C. by resistance
heating, and then was melt-spinned with a cooling speed of about
10.sup.4 k/s to obtain the Zr-based amorphous alloy sample C4.
EXAMPLE 5
[0030] Yet still another preparation method of a Zr-based amorphous
alloy is illustrated in this example.
[0031] Raw materials Zr, Ti, Sn, Cu, Ni, Fe, Be (about 20 g) were
added into a quartz tube (Middle North Technology). The ratios of
the raw materials were as follows:
(Zr.sub.0.75Ti.sub.0.24Sn.sub.0.01).sub.60W.sub.3(Cu.sub.0.55Ni.sub.0.45)-
.sub.15Pd.sub.2Zn.sub.1Fe.sub.4Be.sub.15. The tube was vacuumized
to about 2.times.10.sup.-2 Pa. The raw materials were induction
melted at about 2,000.degree. C. under Ar protection for about 5
minutes. The molten master alloy was mixed sufficiently, and then
cooled into an ingot. The ingot was re-melted at about
1,500.degree. C. by induction heating, and then cooled in a water
quenching process with a cooling speed of about 10.sup.4 k/s to
obtain the Zr-based amorphous alloy sample C5.
[0032] Control 1
[0033] The control illustrates an amorphous material prepared
according to the present art.
[0034] Raw materials Zr, Ti, Cu, Ni, Be, Fe (about 25 grams) were
added into an electric arc melting equipment (Shen Yang Technical
Instruments Manufacture Company Limited). The ratios of the raw
materials were as follows:
Zr.sub.41Ti.sub.14Cu.sub.11Ni.sub.9.5Fe.sub.2Be.sub.22.5. The
equipment was vacuumized to about 5 Pa. The starting materials were
melted at about 2,000.degree. C. under Ar protection for about 6
minutes. The molten master alloy was mixed sufficiently, and then
cooled into an ingot. The ingot was re-melted at about
1,500.degree. C. by electric arc melting, and then was copper mold
cast with a cooling speed of about 10.sup.2 k/s to obtain the
Zr-based amorphous alloy sample D1.
[0035] Experimental:
[0036] Testing Methods
[0037] (1) Compression Test
[0038] The samples were tested on a XinSansi CMT5000 series testing
machine with a measuring range of 30KN and a loading speed of about
0.5 mm/minute. The stress-strain conditions of the sample C1 and D1
were tested. The test results are showed in FIG. 2.
[0039] (2) Hardness Test
[0040] The samples were tested on a Micro Hardness Text Hv1000
Vickers Hardness Testing Machine. The weight of the pressure head
was about 200 g, and the loading time was about 10 seconds. Datas
of three test points were obtained for each sample to calculate the
arithmetic average value. The results are showed in Table 1.
[0041] (3) XRD Analysis
[0042] XRD analyzes the physical phase of an alloy material in
order to estimate whether the alloy is amorphous. The samples were
made into powder for test on a Model D-MAX2200PC X-ray Powder
Diffractometer using a Cu K.alpha. radiation. The incidence wave
length .lamda. was about 1.54060 .ANG.. The accelerating voltage
was about 40 kV. The current was about 20 mA. Step scan was used
with a step size of about 0.04 degree. The test results are showed
in FIG. 3.
[0043] (4) The Test of Critical Dimensions
[0044] A wedged sample formed in the copper mold casting process
was cut from the top by a thickness of about 1 mm. The cross
section after cutting was analyzed by XRD. The structure type was
determined. If the structure type was an amorphous alloy, then the
cutting process was continued until the structure was no longer an
amorphous alloy. The total cutting thickness was recorded. The
critical dimension was the total cutting thickness minus 1 mm. The
results are showed in Table 1.
TABLE-US-00001 TABLE 1 Ser. No. C1 C2 C3 C4 C5 D1 Critical >14
>14 14 12 12 8 Dimension (mm) Average 553 553 547 539 548 537
Hardness (Hv)
[0045] From the results showed in Table 1, the Zr-based amorphous
alloys provided according to embodiments of the present disclosure
have critical dimensions larger than about 1 centimeter. Meanwhile,
they have relatively higher hardness. As shown in FIG. 3, there are
no sharp diffraction peaks in the XRD diagrams of Sample C1 C2, C3,
C4, C5 and D1, which indicates the alloys have a high degree of
amorphization. As shown in FIG. 2, the Zr-based amorphous alloy C1
provided according to one embodiment of the present disclosure and
the Zr-based amorphous alloy D1 provided according to the prior art
assume substantially overlapping curves in the low stress area when
identical stresses were applied. However, as the stresses
increased, D1 could only sustain a relatively low strain, and would
break easily. Meanwhile, the curve representing the C1 alloy was
bending, which indicates that the strain capacity of the C1 alloy
is much better than D1, that is, the Zr-based amorphous alloy
according to embodiments of the present disclosure has better
plasticity.
[0046] Many modifications and other embodiments of the present
disclosure will come to mind to one skilled in the art to which the
present disclosure pertains having the benefit of the teachings
presented in the foregoing description; and it will be apparent to
those skilled in the art that variations and modifications of the
present disclosure can be made without departing from the scope or
spirit of the present disclosure. Therefore, it is to be understood
that the invention is not to be limited to the specific embodiments
disclosed and that modifications and other embodiments are intended
to be included within the scope of the appended claims. Although
specific terms are employed herein, they are used in a generic and
descriptive sense only and not for purposes of limitation.
* * * * *