U.S. patent application number 13/450468 was filed with the patent office on 2012-08-09 for composition of amorphous alloy and method for fabricating the same.
This patent application is currently assigned to HON HAI PRECISION INDUSTRY CO., LTD.. Invention is credited to HO-DO LEE, SHI-HUN LEE, KYOUNG-SUN SOHN, XIAO-BO YUAN.
Application Number | 20120199251 13/450468 |
Document ID | / |
Family ID | 43527324 |
Filed Date | 2012-08-09 |
United States Patent
Application |
20120199251 |
Kind Code |
A1 |
SOHN; KYOUNG-SUN ; et
al. |
August 9, 2012 |
COMPOSITION OF AMORPHOUS ALLOY AND METHOD FOR FABRICATING THE
SAME
Abstract
A composition includes a base and a weld member welded to the
base to form a weld area. Both the weld member and the base are
made of Zr-rich bulk amorphous alloy. The weld member includes a
main body and a weld portion disposed at an end of the main body. A
thickness of the weld portion is less than that of the main body.
The weld portion has a thickness of about 1.00 mm to about 1.30 mm,
and the weld area of the composition is in an amorphous state.
Inventors: |
SOHN; KYOUNG-SUN; (Shenzhen
City, CN) ; YUAN; XIAO-BO; (Shenzhen City, CN)
; LEE; HO-DO; (Shenzhen City, CN) ; LEE;
SHI-HUN; (Shenzhen City, CN) |
Assignee: |
HON HAI PRECISION INDUSTRY CO.,
LTD.
Tu-Cheng
TW
HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
Shenzhen City
CN
|
Family ID: |
43527324 |
Appl. No.: |
13/450468 |
Filed: |
April 19, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
12578557 |
Oct 13, 2009 |
8164024 |
|
|
13450468 |
|
|
|
|
Current U.S.
Class: |
148/403 |
Current CPC
Class: |
B23K 2103/08 20180801;
B23K 26/32 20130101; Y10T 428/12493 20150115; C22C 45/10
20130101 |
Class at
Publication: |
148/403 |
International
Class: |
B32B 15/01 20060101
B32B015/01 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 31, 2009 |
CN |
200910305067.5 |
Claims
1. A composition, comprising a base and a weld member, wherein both
the weld member and the base are made of Zr-rich bulk amorphous
alloy; the weld member comprises a main body and a weld portion
disposed at an end of the main body, a thickness of the weld
portion being less than that of the main body; the weld portion has
a thickness of about 1.00 mm to about 1.30 mm; the weld portion of
the weld member is welded to the base, thereby forming a weld area;
the weld area of the composition in an amorphous state.
2. The composition of claim 1, wherein both the weld member and the
base are made of Zr-rich bulk amorphous alloy selected from the
group consisting of Zr--Cu--Al--Ni, Zr--Cu--Al--Ni--Ti,
Zr--Cu--Al--Ni--Nb, Zr--Cu--Ni--Ti--Be, Zr--Cu--Al--Ni--Be, and
Zr--Cu--Al--Ti--Be.
3. The composition of claim 1, wherein the weld portion is about
1.06 mm to about 1.26 mm thick.
4. The composition of claim 3, wherein the weld portion is about
1.16 mm.
5. The composition of claim 1 has a maximum tensile load from about
65.62 kg to about 83.51 kg.
6. The composition of claim 1, wherein the weld portion is welded
to the base by a pulsed laser.
7. The composition of claim 6, wherein a maximum power of the
pulsed laser exceeds or equals 3.5 kW, and a welding rate exceeds 2
mm/sec.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] The present application is a divisional application of U.S.
patent application Ser. No. 12/578,557, filed on Oct. 13, 2009.
BACKGROUND
[0002] 1. Technical Field
[0003] The present disclosure relates to a zirconium-rich
(hereinafter referred to as Zr-rich) amorphous alloy and,
particularly, to a composition of Zr-rich amorphous alloy and
method for fabricating the same.
[0004] 2. Description of the Related Art
[0005] It is known that amorphous alloys provide superior magnetic,
mechanical, chemical, and other properties in comparison with
crystal. Many alloy compositions which can form an amorphous phase,
such as Fe systems, Ni systems, Co systems, Al systems, Zr systems,
and Ti systems, have been developed.
[0006] A plurality of devices or components produced from Zr-rich
bulk amorphous alloy, such as golf clubs and solar wind collectors,
has been developed. If the composition of the amorphous alloy
component is relatively complicated, casting methods of fabrication
are ineffective. The amorphous alloy component can be easily
fabricated by welding at least two bulk amorphous alloy parts into
an integral composition. However, in commonly employed fabrication
of the amorphous alloy component, the amorphous state of weld areas
of the amorphous alloy component is easily damaged. In addition, a
maximum tensile load of the amorphous alloy component fabricated by
welding is less than 20 kg, clearly insufficient to satisfy
mechanical strength requirements for the component.
[0007] Therefore, there is room for improvement within the art.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Many aspects of the embodiments can be better understood
with reference to the following drawings. The components in the
drawings are not necessarily drawn to scale, the emphasis instead
being placed upon clearly illustrating the principles of the
embodiments. Moreover, in the drawings, like reference numerals
designate corresponding parts throughout the several views.
[0009] FIG. 1 is an isometric view of a composition of a Zr-rich
amorphous alloy.
[0010] FIG. 2 is a photograph showing the microcomposition in a
weld area of example 5 of the composition of FIG. 1.
[0011] FIG. 3 is an X-ray diffraction graph of a weld area of
example 5 of the composition of FIG. 1.
[0012] FIG. 4 is a photograph showing the microcomposition in a
weld area of example 6 of the composition of FIG. 1.
[0013] FIG. 5 is an XRD graph of a weld area of example 6 of the
composition of FIG. 1.
[0014] FIG. 6 is a photograph showing the microcomposition in a
weld area of the example 7 of the composition of FIG. 1.
[0015] FIG. 7 is an XRD graph of a weld area of example 7 of the
composition of FIG. 1.
[0016] FIG. 8 is a photograph showing the microcomposition in a
weld area of example 8 of the composition of FIG. 1.
[0017] FIG. 9 is an XRD graph of a weld area of example 8 of the
composition of FIG. 1.
[0018] FIG. 10 is a graph of a result of the tensile load of the
examples of the composition of FIG. 1.
DETAILED DESCRIPTION
[0019] An embodiment of a composition 100 of a Zr-rich bulk
amorphous alloy includes a weld member 10 and a base 20. The weld
member 10 includes a main body 11 and a weld portion 13 disposed at
an end of the main body 11. A thickness of the weld portion 13 is
less than that of the main body 11 of the weld member 10. In the
illustrated embodiment, the thickness of the weld portion 13 is
from about 0.46 mm to about 1.66 mm. The weld portion 13 of the
weld member 10 is welded to the base 20 by a pulsed laser to form a
weld area 15. After welding, the weld area 15 is still in an
amorphous state. Both the weld member 10 and the base 20 are
Zr-rich bulk amorphous alloys, such as, Zr--Cu--Al--Ni,
Zr--Cu--Al--Ni--Ti, Zr--Cu--Al--Ni--Nb, Zr--Cu--Ni--Ti--Be,
Zr--Cu--Al--Ni--Be, and Zr--Cu--Al--Ti--Be alloys. Alternatively,
the weld portion 13 can be thicker than or equal to the main body
11 of the weld member 10.
[0020] A method for fabrication of the composition 100 includes
providing the weld member 10 and the base 20. The weld portion 13
of the weld member 10 is welded to the base 20 by a pulsed laser in
a protective gas environment. The maximum power of the pulsed laser
exceeds or equals 3.5 kW, the welding rate is 2 mm/second or more,
and the protective gas is Ar, He, or N.
[0021] Examples of the composition of the disclosure were tensile
tested using a 1220S-type tensile test device produced by still
precision device limited company in Dong-guan, China. Test results
are as follows.
Example 1
[0022] Both the weld member 10 and the base 20 were
Zr--Cu--Al--Ni--Nb alloys. The thickness of the weld portion 13 of
the weld member 10 was about 0.46 mm. The weld portion 13 of the
weld member 10 was welded to the base 20 by a pulsed laser in a
protective gas condition at a maximum power of about 3.5 kW at a
welding rate of about 3.5 mm/sec. After welding, the weld area 15
remained in an amorphous state. The resulting maximum tensile load
of the composition 100 was about 25.15 kg.
Example 2
[0023] Both the weld member 10 and the base 20 were
Zr--Cu--Al--Ni--Nb alloys. The thickness of the weld portion 13 of
the weld member 10 was about 0.86 mm. The weld portion 13 of the
weld member 10 was welded to the base 20 by a pulsed laser in a
protective gas condition, at a maximum power of about 3.5 kW at a
welding rate of about 3.5 mm/sec. After welding, the weld area 15
remained in an amorphous state. The resulting maximum tensile load
of the composition 100 was about 31.53 kg.
Example 3
[0024] Both the weld member 10 and the base 20 were
Zr--Cu--Al--Ni--Nb alloys. The thickness of the weld portion 13 of
the weld member 10 was about 1.26 mm. The weld portion 13 of the
weld member 10 was welded to the base 20 by a pulsed laser in a
protective gas condition at a maximum power of about 3.5 kW at a
welding rate of about 3.5 mm/sec. After welding, the weld area 15
remained in an amorphous state. Resulting maximum tensile load of
the composition 100 was about 75.22 kg.
Example 4
[0025] Both the weld member 10 and the base 20 were
Zr--Cu--Al--Ni--Nb alloys. The thickness of the weld portion 13 of
the weld member 10 was about 1.66 mm. The weld portion 13 of the
weld member 10 was welded to the base 20 by a pulsed laser in a
protective gas condition at a maximum power of about 3.5 kW and a
welding rate of about 3.5 mm/sec. After welding, the weld area 15
remained in an amorphous state. The resulting maximum tensile load
of the composition 100 was about 20.77 kg.
Example 5
[0026] Both the weld member 10 and the base 20 were
Zr--Cu--Al--Ni--Nb alloys. The thickness of the weld portion 13 of
the weld member 10 was about 0.86 mm. The weld portion 13 of the
weld member 10 was welded to the base 20 by a pulsed laser in a
protective gas condition at maximum power of about 3 kW and a
welding rate of about 2 mm/sec. FIG. 2 shows the micro-composition
of the weld area 15 as not being uniform, with a part of thereof
having undergone oxidation. FIG. 3 shows two crests B, indicating
that a part of the weld area 15 has experienced
crystallization.
Example 6
[0027] Both weld member 10 and the base 20 were Zr--Cu--Al--Ni--Nb
alloy. Thickness of the weld portion 13 of the weld member 10 was
about 0.86 mm. The weld portion 13 of the weld member 10 was welded
to the base 20 by a pulsed laser in a protective gas condition at a
maximum power of about 3.5 kW and a welding rate of about
3.5mm/sec. Compared with FIG. 2, micro-composition of the weld area
15 as shown in FIG. 4 is relatively uniform with none of the weld
area 15 having undergone oxidation. FIG. 5 shows one scattered
crest, indicating that nowhere in the weld area 15 has experienced
crystallization.
Example 7
[0028] Both the weld member 10 and the base 20 are made of
Zr--Cu--Al--Ni--Nb alloys. Thickness of the weld portion 13 of the
weld member 10 is about 0.86 mm. The weld portion 13 of the weld
member 10 is welded to the base 20 by a pulsed laser in a
protective gas condition at a maximum power of the pulsed laser of
about 3.9 kW and a welding rate of about 6 mm/sec. Comparing with
the micro-compositions of FIG. 2, micro-compositions of the weld
area 15 of FIG. 6 are relatively uniform. None of the weld area 15
of FIG. 6 has undergone oxidation. FIG. 7 shows one scattered
crest, indicating that nowhere in the weld area 15 has experienced
crystallization.
Example 8
[0029] Both the weld member 10 and the base 20 are made of
Zr--Cu--Al--Ni--Nb alloys. The thickness of the weld portion 13 of
the weld member 10 is about 0.86 mm. The weld portion 13 of the
weld member 10 is welded to the base 20 by a pulsed laser in a
protective gas condition at a maximum power of the pulsed laser of
about 4.3 kW and a welding rate of about 9.5 mm/sec. Comparing with
the micro-compositions of FIG. 2, micro-compositions of the weld
area 15 of FIG. 8 are relatively uniform. None of the weld area 15
of FIG. 8 has undergone oxidation. FIG. 9 shows one scattered
crest, indicating that nowhere in the weld area 15 has experienced
crystallization.
[0030] In addition, samples of the compositions underwent testing
by a tensile testing device. In the following examples, thicknesses
of the weld portions of the weld members of the samples were
different, maximum power of the pulsed laser was about 3.5 kW, and
welding rate was about 3.5 mm/sec. The tensile test device employed
was a 1220S-type tensile test device produced by still precision
device limited company in Dong-guan, China. The results are shown
in Table 1.
TABLE-US-00001 TABLE 1 tensile loads of the samples Thickness of
the weld Maximum tensile Sample portion (mm) load (kg) 1 0.46 25.12
2 0.50 25.33 3 0.56 25.56 4 0.60 25.71 5 0.66 26.46 6 0.70 26.67 7
0.76 27.98 8 0.80 29.32 9 0.86 31.53 10 0.90 40.33 11 0.96 52.26 12
1.00 65.62 13 1.06 78.16 14 1.10 82.36 15 1.16 83.51 16 1.20 80.36
17 1.26 75.22 18 1.30 66.98 19 1.36 57.46 20 1.40 48.33 21 1.46
41.31 22 1.50 34.19 23 1.56 28.33 24 1.60 23.56 25 1.66 20.77 26
1.70 19.65 27 1.76 18.29 28 1.80 16.98
[0031] As can be seen from Table 1, the maximum tensile load of the
weld portion progressively increases with thickness from about 0.46
mm to about 1.16 mm. The maximum tensile load of the weld portion
progressively decreases with increased thickness from about 1.16 mm
to about 1.80 mm.
[0032] It can be concluded that, depending on the requirement of
the welding mechanical strength of the composition, the required
thickness of the weld portion 13 is about 0.46 mm to about 1.66 mm.
In addition, the required maximum power of the pulsed laser exceeds
or equals 3.5 kW, and welding rate exceeds 2 mm/sec.
[0033] Finally, while the present disclosure has been described
with reference to particular embodiments, the description is
illustrative of the disclosure and is not to be construed as
limiting the disclosure. Therefore, various modifications can be
made to the embodiments by those of ordinary skill in the art
without departing from the true spirit and scope of the disclosure
as defined by the appended claims.
* * * * *