Critical cooling rate of a metallic liquid (Rc) necessary to form glass is correlated to the valence concentration e/a of the liquid (e and a denote valence and atom number in a unit cell, respectively). Rc of liquid is minimized at e/a=3.5. The principles of the composition design to form bulk metallic glasses are as follows: e/a=3.5, the component number (n) in the alloy is larger than three, and the component percentage of the ith component (xi) approaches 1/n.

1.
P.
Duwez
,
R. H.
Willens
, and
W.
Klement
,
J. Appl. Phys.
31
,
1136
(
1960
).
2.
A.
Inoue
,
Acta Mater.
48
,
279
(
2000
).
3.
Q.
Jiang
,
X. Y.
Xu
,
H. J.
Niu
, and
X. X.
,
J. Mater. Sci. Technol.
12
,
299
(
1996
).
4.
H.
Jones
,
Proc. R. Soc. London, Ser. A
144
,
225
(
1934
).
5.
W. B. Pearson, The Crystal Chemistry and Physics of Metals and Alloy (Wiley, New York, 1972), p. 80.
6.
M.
Trömel
and
S.
Hübner
,
Z. Kristallogr.
215
,
429
(
2000
).
7.
Z. P.
Lu
,
H.
Tan
,
Y.
Li
, and
S. C.
Ng
,
Scr. Mater.
42
,
667
(
2000
).
8.
K.
Lu
,
Acta Metall. Sin.
28
,
B17
(
1992
) (in Chinese).
9.
N.
Nishiyama
and
A.
Inoue
,
Mater. Trans., JIM
37
,
1531
(
1996
).
10.
A.
Peker
and
W. L.
Johnson
,
Appl. Phys. Lett.
63
,
2342
(
1993
).
11.
H. J.
Fecht
,
J. H.
Perepezko
,
M. C.
Lee
, and
W. L.
Johnson
,
J. Appl. Phys.
68
,
4494
(
1990
).
12.
P.
Ramachandrarao
,
B.
Cantor
, and
R. W.
Cahn
,
J. Mater. Sci.
12
,
2488
(
1977
).
13.
H. W. King, in Physical Metallurgy, 3rd ed. edited by R. W. Cahn, and P. Haasen (North-Holland, Amsterdam, 1983), p. 63.
This content is only available via PDF.
You do not currently have access to this content.