A Zr58.5Nb2.8Cu15.6Ni12.8Al10.3 (Vitreloy 106a) bulk metallic glass (BMG) was successfully welded by friction stir welding (FSW) with a fixed polycrystalline cubic boron nitride (PCBN) pin tool below its crystallization temperature. The microstructure was analyzed by X-ray diffraction (XRD) to evaluate the crystallization of the weld. The reduced radial distribution function (RDF), short-range order (SRO) domain size, and atomic pair distribution function (PDF) were analyzed to evaluate the effect of FSW at atomic scale. As a result, the SRO domain size was reduced for the weld surface, while increased for the weld nugget.

References

References
1.
Klement
,
W.
,
Willens
,
R. H.
, and
Duwez
,
P.
,
1960
, “
Non-Crystalline Structure in Solidified Gold–Silicon Alloys
,”
Nature
,
187
(
1
), pp.
869
870
.10.1038/187869b0
2.
Wang
,
W. H.
,
Dong
,
C.
, and
Shek
,
C. H.
,
2004
, “
Bulk Metallic Glasses
,”
Mater. Sci. Eng., R
,
44
(
2–3
), pp.
45
89
.10.1016/j.mser.2004.03.001
3.
Inoue
,
A
.,
2000
, “
Stabilization of Metallic Supercooled Liquid and Bulk Amorphous Alloys
,”
Acta Mater.
,
48
(
1
), pp.
279
306
.10.1016/S1359-6454(99)00300-6
4.
Zallen
,
R.
,
1998
,
The Physics of Amorphous Solids
,
Wiley
,
New York
.
5.
Flores
,
K. M.
,
Johnson
,
W. L.
, and
Dauskardt
,
R. H.
,
2003
, “
Fracture and Fatigue Behavior of a Zr-Ti-Nb Ductile Phase Reinforced Bulk Metallic Glass Matrix Composite
,”
Scr. Mater.
,
49
(
12
), pp.
1181
1187
.10.1016/j.scriptamat.2003.08.020
6.
Hays
,
C. C.
,
Schroers
,
J.
,
Johnson
,
W. L.
,
Rathz
,
T. J.
,
Hyers
,
R. W.
,
Rogers
,
J. R.
, and
Robinson
,
M. B.
,
2001
, “
Vitrification and Determination of the Crystallization Time Scales of the Bulk-Metallic-Glass-Forming Liquid Zr58.5Nb2.8Cu15.6Ni12.8Al10.3
,”
Appl. Phys. Lett.
,
79
(
11
), pp.
1605
1607
.10.1063/1.1398605
7.
Kawamura
,
Y.
, and
Ohno
,
Y.
,
2001
, “
Superplastic Bonding of Bulk Metallic Glasses Using Friction
,”
Scr. Mater.
,
45
(
3
), pp.
279
285
.10.1016/S1359-6462(01)01025-9
8.
Yokoyama
,
Y.
,
Abe
,
N.
,
Fukaura
,
K.
,
Shinohara
,
T.
, and
Inoue
,
A.
,
2004
, “
Electron-Beam Welding of Zr55Cu30Ni5Al10 Bulk Glassy Alloys
,”
Mater. Sci. Eng., A
,
375–377
(
1
), pp.
422
426
.10.1016/j.msea.2003.10.225
9.
Li
,
B.
,
Li
,
Z. Y.
,
Xiong
,
J. G.
,
Xing
,
L.
,
Wang
,
D.
, and
Li
,
Y.
,
2006
, “
Laser Welding of Zr45Cu48Al7 Bulk Glassy Alloy
,”
J. Alloys Compd.
,
413
(
1–2
), pp.
118
121
.10.1016/j.jallcom.2005.07.005
10.
Swiston
,
A. J.
, Jr.
,
Besnoin
,
E.
,
Duckham
,
A.
,
Knio
,
O. M.
,
Weihs
,
T. P.
, and
Hufnagel
,
T. C.
,
2005
, “
Thermal and Microstructural Effects of Welding Metallic Glasses by Self-Propagating Reactions in Multilayer Foils
,”
Acta Mater.
,
53
(
13
), pp.
3713
3719
.10.1016/j.actamat.2005.04.030
11.
Thomas
,
M. W.
,
Nicholas
,
D. E.
,
Needham
,
C. J.
,
Murch
,
G. M.
,
Temple-Smith
,
P.
, and
Dawes
,
J. C.
,
1991
, “Friction Stir Welding,” U.S. Patent No. 5,460,317.
12.
Wang
,
D.
,
Xiao
,
B. L.
,
Ma
,
Z. Y.
, and
Zhang
,
H. F.
,
2009
, “
Friction Stir Welding of Zr55Cu30Al10Ni5 Bulk Metallic Glass to Al–Zn–Mg–Cu Alloy
,”
Scr. Mater.
,
60
(
2
), pp.
112
115
.10.1016/j.scriptamat.2008.09.014
13.
Kobata
,
J.
,
Takigawa
,
Y.
,
Chung
,
S. W.
,
Tsuda
,
H.
,
Kimura
,
H.
, and
Higashi
,
K.
,
2007
, “
Nanoscale Amorphous ‘Band-Like’ Structure Induced by Friction Stir Processing in Zr55Cu30Al10Ni5 Bulk Metallic Glass
,”
Mater. Lett.
,
61
(
17
), pp.
3771
3773
.10.1016/j.matlet.2006.12.031
14.
Qin
,
Z.
,
Li
,
C.
,
Zhang
,
H.
,
Wang
,
Z.
,
Hu
,
Z.
, and
Liu
,
Z.
,
2009
, “
Friction Stir Welding of Zr55Al10Ni5Cu30 Bulk Metallic Glass to Crystalline Aluminum
,”
J. Mater. Sci. Technol.
,
25
(
1
), pp.
853
856
.10.1179/174328408X378672
15.
Ji
,
Y. S.
,
Fujii
,
H.
,
Sun
,
Y.
,
Maeda
,
M.
,
Nakata
,
K.
,
Kimura
,
H.
,
Inoue
,
A.
, and
Nogi
,
K.
,
2009
, “
Friction Stir Welding of Zr55Cu30Ni5Al10 Bulk Metallic Glass
,”
Mater. Trans.
,
50
(
6
), pp.
1300
1303
.10.2320/matertrans.ME200806
16.
Sun
,
Y.
,
Ji
,
Y.
,
Fujii
,
H.
,
Nakata
,
K.
, and
Nogi
,
K.
,
2010
, “
Microstructure and Mechanical Properties of Friction Stir Welded Joint of Zr55Cu30Al10Ni5 Bulk Metallic Glass With Pure Copper
,”
Mater. Sci. Eng., A
,
527
(
15
), pp.
3427
3432
.10.1016/j.msea.2010.02.072
17.
Li
,
F. P.
,
Zhang
,
D. C.
,
Luo
,
Z. C.
,
Tan
,
C. G.
, and
Lin
,
J. G.
,
2013
, “
Microstructure and Mechanical Properties of Friction Stir Welded Joint of Zr46Cu46Al8 Bulk Metallic Glass With Pure Aluminum
,”
Mater. Sci. Eng., A
,
588
, pp.
196
200
.10.1016/j.msea.2013.09.035
18.
Elliott
,
S. R.
,
1990
,
Physics of Amorphous Materials
,
Longman Science & Technical
, London, UK.
19.
Petkov
,
V.
,
1989
, “
Rad, a Program for Analysis of X-Ray Diffraction Data from Amorphous Materials for Personal Computers
,”
J. Appl. Crystallogr.
,
22
(
4
), pp.
387
389
.10.1107/S0021889889002104
20.
Atharifar
,
H.
,
Lin
,
D.
, and
Kovacevic
,
R.
,
2009
, “
Numerical and Experimental Investigations on the Loads Carried by the Tool During Friction Stir Welding
,”
J. Mater. Eng. Perform.
,
18
(
4
), pp.
339
350
.10.1007/s11665-008-9298-1
21.
Sorensen
,
C.
, and
Stahl
,
A.
,
2007
, “
Experimental Measurements of Load Distributions on Friction Stir Weld Pin Tools
,”
Metall. Mater. Trans. B
,
38
(
3
), pp.
451
459
.10.1007/s11663-007-9041-6
22.
Buck
,
G. A.
, and
Langerman
,
M.
,
2004
, “
Non-Dimensional Characterization of the Friction Stir/Spot Welding Process Using a Simple Couette Flow Model Part I: Constant Property Bingham Plastic Solution
,” S. Ghosh, J. K. Lee, and J. C. Castro, eds., Columbus, OH, pp.
1283
1288
.
23.
Schroers
,
J.
,
Johnson
,
W. L.
, and
Busch
,
R.
,
2000
, “
Repeated Crystallization in Undercooled Zr41Ti14Cu12Ni10Be23 Liquids
,”
Appl. Phys. Lett.
,
76
(
17
), pp.
2343
2345
.10.1063/1.126340
You do not currently have access to this content.