Dendrite growth in undercooled Fe-Co melt

N. Liu; F. Liu; G. C. Yang; Y. Z. Chen; C. L. Yang; J. S. Li; Y. H. Zhou

doi:10.1016/j.jallcom.2007.01.118

Dendrite growth in undercooled Fe-Co melt

N. Liu, F. Liu, G. C. Yang, Y. Z. Chen, C. L. Yang, J. S. Li, Y. H. Zhou

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Letter › peer-review

16 Scopus citations

Abstract

Fe-Co melt was undercooled using fluxing method in this work. With increasing the initial undercooling (ΔT), two kinds of dendrites were obtained in the microstructure of undercooled Fe₇₀Co₃₀ alloy at both low and high undercooling ranges. For ΔT < 22 K, the as-solidified morphology is similar to the conventional as-cast dendrite, whereas, for 97 K < ΔT < 173 K, a largely developed fine dendritic morphology is observed. BCT model is used to discuss the two different dendritic morphologies, in combination with a stability analysis of dendrite growth based on the morphological instability.

Original language	English
Pages (from-to)	L6-L9
Journal	Journal of Alloys and Compounds
Volume	455
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2007.01.118
State	Published - 8 May 2008

Keywords

Crystal growth
Diffusion
Microstructure
Rapid solidification

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10.1016/j.jallcom.2007.01.118

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title = "Dendrite growth in undercooled Fe-Co melt",

abstract = "Fe-Co melt was undercooled using fluxing method in this work. With increasing the initial undercooling (ΔT), two kinds of dendrites were obtained in the microstructure of undercooled Fe70Co30 alloy at both low and high undercooling ranges. For ΔT < 22 K, the as-solidified morphology is similar to the conventional as-cast dendrite, whereas, for 97 K < ΔT < 173 K, a largely developed fine dendritic morphology is observed. BCT model is used to discuss the two different dendritic morphologies, in combination with a stability analysis of dendrite growth based on the morphological instability.",

keywords = "Crystal growth, Diffusion, Microstructure, Rapid solidification",

author = "N. Liu and F. Liu and Yang, {G. C.} and Chen, {Y. Z.} and Yang, {C. L.} and Li, {J. S.} and Zhou, {Y. H.}",

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T1 - Dendrite growth in undercooled Fe-Co melt

AU - Liu, N.

AU - Liu, F.

AU - Yang, G. C.

AU - Chen, Y. Z.

AU - Yang, C. L.

AU - Li, J. S.

AU - Zhou, Y. H.

PY - 2008/5/8

Y1 - 2008/5/8

N2 - Fe-Co melt was undercooled using fluxing method in this work. With increasing the initial undercooling (ΔT), two kinds of dendrites were obtained in the microstructure of undercooled Fe70Co30 alloy at both low and high undercooling ranges. For ΔT < 22 K, the as-solidified morphology is similar to the conventional as-cast dendrite, whereas, for 97 K < ΔT < 173 K, a largely developed fine dendritic morphology is observed. BCT model is used to discuss the two different dendritic morphologies, in combination with a stability analysis of dendrite growth based on the morphological instability.

AB - Fe-Co melt was undercooled using fluxing method in this work. With increasing the initial undercooling (ΔT), two kinds of dendrites were obtained in the microstructure of undercooled Fe70Co30 alloy at both low and high undercooling ranges. For ΔT < 22 K, the as-solidified morphology is similar to the conventional as-cast dendrite, whereas, for 97 K < ΔT < 173 K, a largely developed fine dendritic morphology is observed. BCT model is used to discuss the two different dendritic morphologies, in combination with a stability analysis of dendrite growth based on the morphological instability.

KW - Crystal growth

KW - Diffusion

KW - Microstructure

KW - Rapid solidification

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DO - 10.1016/j.jallcom.2007.01.118

M3 - 快报

AN - SCOPUS:41049110801

SN - 0925-8388

VL - 455

SP - L6-L9

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Dendrite growth in undercooled Fe-Co melt

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Keywords

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