Effect of oxygen impurity on crystallization of an undercooled bulk glass forming Zr-Ti-Cu-Ni-Al alloy

被引：343

作者：

Lin, XH ^{[1
]}

Johnson, WL ^{[1
]}

Rhim, WK ^{[1
]}

机构：

[1] CALTECH,JET PROP LAB,PASADENA,CA 91109

来源：

MATERIALS TRANSACTIONS JIM | 1997年 / 38卷 / 05期

关键词：

bulk metallic glass; crystallization; impurity; undercooling; overheating; homogeneous nucleation; heterogeneous nucleation; electrostatic levitation; time-temperature-transformation diagram; critical cooling rate;

D O I：

10.2320/matertrans1989.38.473

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High vacuum, containerless, electrostatic levitation process has been used to study the undercooling and crystallization kinetics of a bulk glass forming Zr-Ti-Cu-Ni-Al alloy. The oxygen impurity level in the alloy has been found to play a crucial role in the crystallization kinetics of the undercooled melt. Overheating the melt above a critical threshold temperature results in enhancement subsequent undercooling. This crucial threshold temperature is found to be a function of the overall oxygen content of the alloy direct measurement of the time-temperature-trans formation (TTT) diagram for crystallization of the undercooled melt made following initial overheating above the threshold temperature show a strong dependence on overall oxygen concentration. An explanation of these observations is proposed.

引用

页码：473 / 477

页数：5

共 16 条

[1] FORMATION OF GLASSY SPHERES OF FE-NI-P-B BY CONTAINERLESS PROCESSING
DUNST, A
HERLACH, DM
GILLESSEN, F
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1991, 133 : 785 - 789
[2] GLADYS A, 1985, Z METALLKD, V76, P254
[3] MATERIALS SCIENCE - CONFUSION BY DESIGN
GREER, AL
[J]. NATURE, 1993, 366 (6453) : 303 - 304
[4] PD3SI NUCLEATION IN UNDERCOOLED PD-CU-SI MELTS
HERLACH, DM
GILLESSEN, F
[J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1987, 17 (08): : 1635 - 1644
[5] MG-CU-Y BULK AMORPHOUS-ALLOYS WITH HIGH-TENSILE STRENGTH PRODUCED BY A HIGH-PRESSURE DIE-CASTING METHOD
INOUE, A
NAKAMURA, T
NISHIYAMA, N
MASUMOTO, T
[J]. MATERIALS TRANSACTIONS JIM, 1992, 33 (10): : 937 - 945
[6] PRODUCTION OF AMORPHOUS CYLINDER AND SHEET OF LA55AL25NI20 ALLOY BY A METALLIC MOLD CASTING METHOD
INOUE, A
ZHANG, T
MASUMOTO, T
[J]. MATERIALS TRANSACTIONS JIM, 1990, 31 (05): : 425 - 428
[7] Experimental determination of a time-temperature-transformation diagram of the undercooled Zr41.2Ti13.8CU12.5Ni10.0Be22.5 alloy using the containerless electrostatic levitation processing technique
Kim, YJ
Busch, R
Johnson, WL
Rulison, AJ
Rhim, WK
[J]. APPLIED PHYSICS LETTERS, 1996, 68 (08) : 1057 - 1059
[8] NON-CRYSTALLINE STRUCTURE IN SOLIDIFIED GOLD-SILICON ALLOYS
KLEMENT, W
WILLENS, RH
DUWEZ, P
[J]. NATURE, 1960, 187 (4740) : 869 - 870
[9] FORMATION OF BULK METALLIC-GLASS BY FLUXING
KUI, HW
GREER, AL
TURNBULL, D
[J]. APPLIED PHYSICS LETTERS, 1984, 45 (06) : 615 - 616
[10] SPHERES OF THE METALLIC-GLASS AU-55,PB-22.5,SB-22.5 AND THEIR SURFACE CHARACTERISTICS
LEE, MC
KENDALL, JM
JOHNSON, WL
[J]. APPLIED PHYSICS LETTERS, 1982, 40 (05) : 382 - 384

← 1 2 →