EAM analysis of the lattice parameter effect in order-disorder transformation

T. Nsongo; X. Ni; G. Chen

EAM analysis of the lattice parameter effect in order-disorder transformation

T. Nsongo^*
, X. Ni
, G. Chen

^*Corresponding author for this work

University of Science and Technology Beijing

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

Abstract

The embedded atom method (EAM) was used to theoretically analyze the effect of the lattice parameter variation on the order-disorder transformation in binary alloys. Based on EAM, it is found that only one kind of order-disorder transition (second-order transition) exists for AB alloy. Three groups of order-disorder transformation can be observed for the A₃B or AB₃ compounds. For group I the order-disorder is a completely first-order transition. For group II, the order-disorder transformation is a classical first-order transition. For group III, the order-disorder transformation is found to be a second-order transition. The lattice parameter variations have a significant effect on E₂ coefficient, which is related to the ordering energy. These results are in good agreement with experiments.

Original language	English
Pages (from-to)	189-194
Number of pages	6
Journal	Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)
Volume	8
Issue number	3
State	Published - Sep 2001
Externally published	Yes

Keywords

Binary alloy
Embedded atom method (EAM)
Order-disorder transformation
Phase transformation

Cite this

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title = "EAM analysis of the lattice parameter effect in order-disorder transformation",

abstract = "The embedded atom method (EAM) was used to theoretically analyze the effect of the lattice parameter variation on the order-disorder transformation in binary alloys. Based on EAM, it is found that only one kind of order-disorder transition (second-order transition) exists for AB alloy. Three groups of order-disorder transformation can be observed for the A3B or AB3 compounds. For group I the order-disorder is a completely first-order transition. For group II, the order-disorder transformation is a classical first-order transition. For group III, the order-disorder transformation is found to be a second-order transition. The lattice parameter variations have a significant effect on E2 coefficient, which is related to the ordering energy. These results are in good agreement with experiments.",

keywords = "Binary alloy, Embedded atom method (EAM), Order-disorder transformation, Phase transformation",

author = "T. Nsongo and X. Ni and G. Chen",

year = "2001",

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T1 - EAM analysis of the lattice parameter effect in order-disorder transformation

AU - Nsongo, T.

AU - Ni, X.

AU - Chen, G.

PY - 2001/9

Y1 - 2001/9

N2 - The embedded atom method (EAM) was used to theoretically analyze the effect of the lattice parameter variation on the order-disorder transformation in binary alloys. Based on EAM, it is found that only one kind of order-disorder transition (second-order transition) exists for AB alloy. Three groups of order-disorder transformation can be observed for the A3B or AB3 compounds. For group I the order-disorder is a completely first-order transition. For group II, the order-disorder transformation is a classical first-order transition. For group III, the order-disorder transformation is found to be a second-order transition. The lattice parameter variations have a significant effect on E2 coefficient, which is related to the ordering energy. These results are in good agreement with experiments.

AB - The embedded atom method (EAM) was used to theoretically analyze the effect of the lattice parameter variation on the order-disorder transformation in binary alloys. Based on EAM, it is found that only one kind of order-disorder transition (second-order transition) exists for AB alloy. Three groups of order-disorder transformation can be observed for the A3B or AB3 compounds. For group I the order-disorder is a completely first-order transition. For group II, the order-disorder transformation is a classical first-order transition. For group III, the order-disorder transformation is found to be a second-order transition. The lattice parameter variations have a significant effect on E2 coefficient, which is related to the ordering energy. These results are in good agreement with experiments.

KW - Binary alloy

KW - Embedded atom method (EAM)

KW - Order-disorder transformation

KW - Phase transformation

UR - https://www.scopus.com/pages/publications/0035440413

M3 - 文章

AN - SCOPUS:0035440413

SN - 1005-8850

VL - 8

SP - 189

EP - 194

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 - 3

ER -

EAM analysis of the lattice parameter effect in order-disorder transformation

Abstract

Keywords

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