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",

pages = "1888--1891",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "15",

}

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 - https://www.scopus.com/pages/publications/33748269123

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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