Metastable phase formation in eutectic solidification of highly undercooled Fe83B17 alloy melt

被引：24

作者：

Yang, CL ^{[1
]}

Yang, GC ^{[1
]}

Liu, F ^{[1
]}

Chen, YZ ^{[1
]}

Liu, N ^{[1
]}

Chen, D ^{[1
]}

Zhou, YH ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2006年 / 373卷 / 01期

关键词：

undercooling; metastable phase; competitive nucleation; Fe-B eutectic alloy;

D O I：

10.1016/j.physb.2005.11.112

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Adopting molten glass denucleating combined with thermal cycling, high undercooling up to 460 K was achieved in the bulk Fe83B17 alloy melts. Results from XRD, SAED and DTA show that, for undercoolings beyond the critical value 386 K, a metastable phase Fe3B remains in the as-solidified structure at room temperature. The effect of undercooling on the observed phenomenon was interpreted in terms of a time-dependent nucleation theory, i.e., the competitive nucleation between the metastable phase, Fe3B and the stable phase, Fe2B. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：136 / 141

页数：6

共 17 条

[1] Eutectic solidification processing via bulk melt undercooling
Abbaschian, R
Lipschutz, MD
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 226 : 13 - 21
[2] Undercooling of Ni-B and Fe-B alloys and their metastable phase diagrams
Battezzati, L
Antonione, C
Baricco, M
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 247 : 164 - 171
[3] VISCOSITY AND SELF-DIFFUSION OF LIQUID THALLIUM FROM ITS MELTING POINT TO ABOUT 1300 DEGREES K
CAHILL, JA
GROSSE, AV
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1965, 69 (02) : 518 - &
[4] CAHN JW, 1968, T METALL SOC AIME, V242, P166
[5] Formation of metastable phases from amorphous state
Duhaj, P
Svec, P
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 226 : 245 - 254
[6] HALLEMANS B, 1994, Z METALLKD, V85, P10
[7] FORMATION OF METASTABLE CRYSTALLINE PHASES IN LIGHT-METAL SYSTEMS BY RAPID SOLIDIFICATION
JONES, H
[J]. PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1990, 61 (04): : 487 - 509
[8] Solidification kinetics and phase formation of undercooled eutectic Ni-Nb melts
Leonhardt, M
Löser, W
Lindenkreuz, HG
[J]. ACTA MATERIALIA, 1999, 47 (10) : 2961 - 2968
[9] Microstructure evolution and metastable phase formation in undercooled Fe-30 at.% Co melt
Li, MJ
Lin, X
Song, GS
Yang, GC
Zhou, YH
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 268 (1-2): : 90 - 96
[10] Metastable phase formation in undercooled near-eutectic Nb-Al alloys
Loser, W
Hermann, R
Leonhardt, M
Stephan, D
Bormann, R
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 224 (1-2): : 53 - 60

← 1 2 →