Formation of Ni57Zr20Ti22Pb1 amorphous powders by mechanical alloying

被引：0

作者：

Lee, P. Y. ^{[1
]}

Hung, S. S. ^{[2
]}

Jang, Jason S. C. ^{[2
]}

Chen, G. S. ^{[3
]}

机构：

[1] Natl Taiwan Ocean Univ, Inst Mat Engn, Chilung 202, Taiwan

[2] I Shou Univ, Dept Mat Sci & Engn, Kaohsiung 840, Taiwan

[3] Feng Chia Univ, Dept Mat Sci, Taichung 407, Taiwan

来源：

THERMEC 2006, PTS 1-5 | 2007年 / 539-543卷

关键词：

mechanical alloying; amorphous phase; supercooled liquid region; glass transition; Ni-based alloys;

D O I：

10.4028/www.scientific.net/MSF.539-543.2767

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the current study, the amorphization behavior of mechanically alloyed Ni57Zr20Ti22Pb1 powder was examined in details. The conventional X-ray diffraction results confirm that the fully amorphous powders formed after 5 hours of milling. The thermal stability of the Ni57Zr20Ti22Pb1 amorphous powders was investigated by differential scanning calorimeter (DSC). As the results demonstrated, the glass transition temperature (T-g) and the crystallization temperature (T-x) are 760 K and 850 K, respectively. The supercooled liquid region Delta T-x is 90 K. The appearance of wide supercooled liquid region may be mainly due to the Pb additions which cause the increasing differences in atomic size of mechanically alloyed Ni57Zr20Ti22Pb1 powders.

引用

页码：2767 / +

页数：3

共 16 条

[1]

ECKERT J, 1999, MATER SCI FORUM, V3, P312

[2]

ELESKANDARANY MS, 1992, J APPL PHYS, V72, P2665

[3] MG-CU-Y BULK AMORPHOUS-ALLOYS WITH HIGH-TENSILE STRENGTH PRODUCED BY A HIGH-PRESSURE DIE-CASTING METHOD [J].

INOUE, A ;

NAKAMURA, T ;

NISHIYAMA, N ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1992, 33 (10) :937-945

[4] Fabrication of bulk glassy Zr55Al10Ni5Cu30 alloy of 30 mm in diameter by a suction casting methodQ [J].

Inoue, A ;

Zhang, T .

MATERIALS TRANSACTIONS JIM, 1996, 37 (02) :185-187

[5] PRODUCTION OF AMORPHOUS CYLINDER AND SHEET OF LA55AL25NI20 ALLOY BY A METALLIC MOLD CASTING METHOD [J].

INOUE, A ;

ZHANG, T ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1990, 31 (05) :425-428

[6]

INOUE A, 1993, J NONCRYST SOLIDS, V473, P156

[7] THERMODYNAMIC AND KINETIC ASPECTS OF THE CRYSTAL TO GLASS TRANSFORMATION IN METALLIC MATERIALS [J].

JOHNSON, WL .

PROGRESS IN MATERIALS SCIENCE, 1986, 30 (02) :81-134

[8] THE FORMATION AND THERMAL-STABILITY OF AMORPHOUS NI-NB ALLOY POWDER SYNTHESIZED BY MECHANICAL ALLOYING [J].

LEE, PY ;

KOCH, CC .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1987, 94 (01) :88-100

[9] FORMATION OF AMORPHOUS NI-ZR ALLOY POWDER BY MECHANICAL ALLOYING OF INTERMETALLIC POWDER MIXTURES AND MIXTURES OF NICKEL OR ZIRCONIUM WITH INTERMETALLICS [J].

LEE, PY ;

KOCH, CC .

JOURNAL OF MATERIALS SCIENCE, 1988, 23 (08) :2837-2845

[10] Investigations of mechanically alloyed Ni-Zr-Ti-Si amorphous alloys with significant supercooled regions [J].

Lin, CK ;

Feng, YB ;

Lee, PY ;

Wang, LY ;

Lin, HM ;

Chen, GS .

INTERMETALLICS, 2002, 10 (11-12) :1149-1155

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