Microscopic phase-field simulation of L12 and D022 phases during the early precipitation process of Ni-Cr-Al alloys

Zhong Chu; Zheng Chen; Yongxin Wang; Yanli Lu; Yongsheng Li

doi:10.1016/S1005-8850(06)60087-X

Microscopic phase-field simulation of L1₂ and D0₂₂ phases during the early precipitation process of Ni-Cr-Al alloys

Zhong Chu, Zheng Chen, Yongxin Wang, Yanli Lu, Yongsheng Li

Queen Mary University of London Engineering School

Northwestern Polytechnical University Xian

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

1 Scopus citations

Abstract

The influence of temperature on the precipitation mechanism and sequence of L1₂ and D0₂₂ phases during the early precipitation process of a Ni-15.5at%Cr-14at%Al alloy was simulated based on the microscopic phase-field model. In the range from 873 to 1373 K, the precipitation mechanism transformed from spinodal decomposition to non-classic nucleation and growth; the incubation period prolonged gradually with increasing temperature. The volume fraction of L1₂ phases increased and that of D0₂₂ phases decreased. D0₂₂ phases disappeared at 1373 K, and finally single-phase L1₂ phases were formed.

Original language	English
Pages (from-to)	429-434
Number of pages	6
Journal	Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)
Volume	13
Issue number	5
DOIs	https://doi.org/10.1016/S1005-8850(06)60087-X
State	Published - Oct 2006

Keywords

microscope phase-field model
Ni-Cr-Al alloys
ordering parameter
precipitation
simulation

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10.1016/S1005-8850(06)60087-X

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title = "Microscopic phase-field simulation of L12 and D022 phases during the early precipitation process of Ni-Cr-Al alloys",

abstract = "The influence of temperature on the precipitation mechanism and sequence of L12 and D022 phases during the early precipitation process of a Ni-15.5at%Cr-14at%Al alloy was simulated based on the microscopic phase-field model. In the range from 873 to 1373 K, the precipitation mechanism transformed from spinodal decomposition to non-classic nucleation and growth; the incubation period prolonged gradually with increasing temperature. The volume fraction of L12 phases increased and that of D022 phases decreased. D022 phases disappeared at 1373 K, and finally single-phase L12 phases were formed.",

keywords = "microscope phase-field model, Ni-Cr-Al alloys, ordering parameter, precipitation, simulation",

author = "Zhong Chu and Zheng Chen and Yongxin Wang and Yanli Lu and Yongsheng Li",

year = "2006",

month = oct,

doi = "10.1016/S1005-8850(06)60087-X",

language = "英语",

volume = "13",

pages = "429--434",

journal = "Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)",

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TY - JOUR

T1 - Microscopic phase-field simulation of L12 and D022 phases during the early precipitation process of Ni-Cr-Al alloys

AU - Chu, Zhong

AU - Chen, Zheng

AU - Wang, Yongxin

AU - Lu, Yanli

AU - Li, Yongsheng

PY - 2006/10

Y1 - 2006/10

N2 - The influence of temperature on the precipitation mechanism and sequence of L12 and D022 phases during the early precipitation process of a Ni-15.5at%Cr-14at%Al alloy was simulated based on the microscopic phase-field model. In the range from 873 to 1373 K, the precipitation mechanism transformed from spinodal decomposition to non-classic nucleation and growth; the incubation period prolonged gradually with increasing temperature. The volume fraction of L12 phases increased and that of D022 phases decreased. D022 phases disappeared at 1373 K, and finally single-phase L12 phases were formed.

AB - The influence of temperature on the precipitation mechanism and sequence of L12 and D022 phases during the early precipitation process of a Ni-15.5at%Cr-14at%Al alloy was simulated based on the microscopic phase-field model. In the range from 873 to 1373 K, the precipitation mechanism transformed from spinodal decomposition to non-classic nucleation and growth; the incubation period prolonged gradually with increasing temperature. The volume fraction of L12 phases increased and that of D022 phases decreased. D022 phases disappeared at 1373 K, and finally single-phase L12 phases were formed.

KW - microscope phase-field model

KW - Ni-Cr-Al alloys

KW - ordering parameter

KW - precipitation

KW - simulation

UR - http://www.scopus.com/inward/record.url?scp=33750611114&partnerID=8YFLogxK

U2 - 10.1016/S1005-8850(06)60087-X

DO - 10.1016/S1005-8850(06)60087-X

M3 - 文章

AN - SCOPUS:33750611114

SN - 1005-8850

VL - 13

SP - 429

EP - 434

JO - Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)

JF - Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)

IS - 5

ER -

Microscopic phase-field simulation of L1₂ and D0₂₂ phases during the early precipitation process of Ni-Cr-Al alloys

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Keywords

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