Forming mechanism of metastable "dendrite core" in undercooled Fe-Ni alloy

Y. Z. Chen; G. C. Yang; F. Liu; N. Liu; H. Xie; D. Chen; C. L. Yang; Y. P. Su; Y. H. Zhou

doi:10.1016/j.matlet.2005.12.047

Forming mechanism of metastable "dendrite core" in undercooled Fe-Ni alloy

Y. Z. Chen, G. C. Yang, F. Liu, N. Liu, H. Xie, D. Chen, C. L. Yang, Y. P. Su, Y. H. Zhou

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

11 Scopus citations

Abstract

In order to investigate forming mechanism of the metastable "dendrite core" in undercooled Fe-7.5 at.%Ni alloy melt, alloy samples subjected to undercoolings above the critical value for metastable phase formation were quenched and heat-treated. It was evidenced that solid-state transformation, i.e. from metastable δ phase to stable γ phase, cannot be completed during solidification, thus the remained δ phase forms the so-called metastable "dendrite core". Meanwhile the solidification behavior during the second recalescence was described applying peritectic reaction theory.

Original language	English
Pages (from-to)	1888-1891
Number of pages	4
Journal	Materials Letters
Volume	60
Issue number	15
DOIs	https://doi.org/10.1016/j.matlet.2005.12.047
State	Published - Jul 2006

Keywords

Fe-Ni alloy
Peritecitic reaction
Solid-state transformation
Solidification
Undercooled melt

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10.1016/j.matlet.2005.12.047

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title = "Forming mechanism of metastable {"}dendrite core{"} in undercooled Fe-Ni alloy",

abstract = "In order to investigate forming mechanism of the metastable {"}dendrite core{"} in undercooled Fe-7.5 at.%Ni alloy melt, alloy samples subjected to undercoolings above the critical value for metastable phase formation were quenched and heat-treated. It was evidenced that solid-state transformation, i.e. from metastable δ phase to stable γ phase, cannot be completed during solidification, thus the remained δ phase forms the so-called metastable {"}dendrite core{"}. Meanwhile the solidification behavior during the second recalescence was described applying peritectic reaction theory.",

keywords = "Fe-Ni alloy, Peritecitic reaction, Solid-state transformation, Solidification, Undercooled melt",

author = "Chen, {Y. Z.} and Yang, {G. C.} and F. Liu and N. Liu and H. Xie and D. Chen and Yang, {C. L.} and Su, {Y. P.} and Zhou, {Y. H.}",

year = "2006",

month = jul,

doi = "10.1016/j.matlet.2005.12.047",

language = "英语",

volume = "60",

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journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Forming mechanism of metastable "dendrite core" in undercooled Fe-Ni alloy

AU - Chen, Y. Z.

AU - Yang, G. C.

AU - Liu, F.

AU - Liu, N.

AU - Xie, H.

AU - Chen, D.

AU - Yang, C. L.

AU - Su, Y. P.

AU - Zhou, Y. H.

PY - 2006/7

Y1 - 2006/7

N2 - In order to investigate forming mechanism of the metastable "dendrite core" in undercooled Fe-7.5 at.%Ni alloy melt, alloy samples subjected to undercoolings above the critical value for metastable phase formation were quenched and heat-treated. It was evidenced that solid-state transformation, i.e. from metastable δ phase to stable γ phase, cannot be completed during solidification, thus the remained δ phase forms the so-called metastable "dendrite core". Meanwhile the solidification behavior during the second recalescence was described applying peritectic reaction theory.

AB - In order to investigate forming mechanism of the metastable "dendrite core" in undercooled Fe-7.5 at.%Ni alloy melt, alloy samples subjected to undercoolings above the critical value for metastable phase formation were quenched and heat-treated. It was evidenced that solid-state transformation, i.e. from metastable δ phase to stable γ phase, cannot be completed during solidification, thus the remained δ phase forms the so-called metastable "dendrite core". Meanwhile the solidification behavior during the second recalescence was described applying peritectic reaction theory.

KW - Fe-Ni alloy

KW - Peritecitic reaction

KW - Solid-state transformation

KW - Solidification

KW - Undercooled melt

UR - http://www.scopus.com/inward/record.url?scp=33748269123&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2005.12.047

DO - 10.1016/j.matlet.2005.12.047

M3 - 文章

AN - SCOPUS:33748269123

SN - 0167-577X

VL - 60

SP - 1888

EP - 1891

JO - Materials Letters

JF - Materials Letters

IS - 15

ER -

Forming mechanism of metastable "dendrite core" in undercooled Fe-Ni alloy

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Keywords

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