Microscopic phase-field simulation of the early precipitation mechanism of Ni3Al phase in Ni-Al alloys

Yan Li Lu; Zheng Chen; Yong Xin Wang

doi:10.1016/j.matlet.2007.08.061

Microscopic phase-field simulation of the early precipitation mechanism of Ni₃Al phase in Ni-Al alloys

Yan Li Lu, Zheng Chen, Yong Xin Wang

Queen Mary University of London Engineering School

Northwestern Polytechnical University Xian

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

22 Scopus citations

Abstract

The precipitation mechanism and morphological evolution of Ni₃Al phase is studied on the atomic scale with the microscopic phase-field simulation. The results show that the early precipitation mechanisms are different for the alloys with different Al content. The early precipitation mechanism of lower Al concentration alloy is the mechanism of non-classical nucleation growth, the medium Al concentration alloy is the mixed mechanism of non-classical nucleation growth and spinodal decomposition and the higher Al concentration alloy is the mechanism of congruent ordering followed by spinodal decomposition.

Original language	English
Pages (from-to)	1385-1388
Number of pages	4
Journal	Materials Letters
Volume	62
Issue number	8-9
DOIs	https://doi.org/10.1016/j.matlet.2007.08.061
State	Published - 31 Mar 2008

Keywords

Computer simulation
Elastic strain
Intermetallic alloys and compounds
Precipitation mechanism

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10.1016/j.matlet.2007.08.061

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title = "Microscopic phase-field simulation of the early precipitation mechanism of Ni3Al phase in Ni-Al alloys",

abstract = "The precipitation mechanism and morphological evolution of Ni3Al phase is studied on the atomic scale with the microscopic phase-field simulation. The results show that the early precipitation mechanisms are different for the alloys with different Al content. The early precipitation mechanism of lower Al concentration alloy is the mechanism of non-classical nucleation growth, the medium Al concentration alloy is the mixed mechanism of non-classical nucleation growth and spinodal decomposition and the higher Al concentration alloy is the mechanism of congruent ordering followed by spinodal decomposition.",

keywords = "Computer simulation, Elastic strain, Intermetallic alloys and compounds, Precipitation mechanism",

author = "Lu, {Yan Li} and Zheng Chen and Wang, {Yong Xin}",

year = "2008",

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doi = "10.1016/j.matlet.2007.08.061",

language = "英语",

volume = "62",

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journal = "Materials Letters",

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publisher = "Elsevier B.V.",

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T1 - Microscopic phase-field simulation of the early precipitation mechanism of Ni3Al phase in Ni-Al alloys

AU - Lu, Yan Li

AU - Chen, Zheng

AU - Wang, Yong Xin

PY - 2008/3/31

Y1 - 2008/3/31

N2 - The precipitation mechanism and morphological evolution of Ni3Al phase is studied on the atomic scale with the microscopic phase-field simulation. The results show that the early precipitation mechanisms are different for the alloys with different Al content. The early precipitation mechanism of lower Al concentration alloy is the mechanism of non-classical nucleation growth, the medium Al concentration alloy is the mixed mechanism of non-classical nucleation growth and spinodal decomposition and the higher Al concentration alloy is the mechanism of congruent ordering followed by spinodal decomposition.

AB - The precipitation mechanism and morphological evolution of Ni3Al phase is studied on the atomic scale with the microscopic phase-field simulation. The results show that the early precipitation mechanisms are different for the alloys with different Al content. The early precipitation mechanism of lower Al concentration alloy is the mechanism of non-classical nucleation growth, the medium Al concentration alloy is the mixed mechanism of non-classical nucleation growth and spinodal decomposition and the higher Al concentration alloy is the mechanism of congruent ordering followed by spinodal decomposition.

KW - Computer simulation

KW - Elastic strain

KW - Intermetallic alloys and compounds

KW - Precipitation mechanism

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U2 - 10.1016/j.matlet.2007.08.061

DO - 10.1016/j.matlet.2007.08.061

M3 - 文章

AN - SCOPUS:38149027603

SN - 0167-577X

VL - 62

SP - 1385

EP - 1388

JO - Materials Letters

JF - Materials Letters

IS - 8-9

ER -

Microscopic phase-field simulation of the early precipitation mechanism of Ni₃Al phase in Ni-Al alloys

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Keywords

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