Mechanism of phase transformations in Mg-based alloys subjected to plasma immersion ion implantation of Ag

Larisa Kutsenko; David Fuks; Arnold Kiv; Michael Talianker; Ljubov Burlaka; Othon Monteiro; Ian Brown

doi:10.1016/j.actamat.2006.02.003

Mechanism of phase transformations in Mg-based alloys subjected to plasma immersion ion implantation of Ag

Larisa Kutsenko, David Fuks, Arnold Kiv, Michael Talianker, Ljubov Burlaka, Othon Monteiro, Ian Brown

Department of Materials Engineering

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

17 Scopus citations

Abstract

The formation of a new phase of composition Mg₅₄Al₂₈Ag₁₈ was observed as a result of plasma immersion ion implantation of Ag into the compound Mg₁₇Al₁₂. The new structure was characterized using a micro-beam diffraction technique. It was found that the implantation-induced phase transition occurs when the retained dose of the implanted ions is within the range of about 10¹⁵-10¹⁶ ions/cm². The implanted system has been studied theoretically by means of density-functional electronic structure calculations and a new ab initio approach has been developed to evaluate the specific concentrations of the implanted ions that might cause the phase transition effect in the implanted matrix. The theoretically estimated values of concentrations are in good agreement with experimental observations.

Original language	English
Pages (from-to)	2637-2643
Number of pages	7
Journal	Acta Materialia
Volume	54
Issue number	10
DOIs	https://doi.org/10.1016/j.actamat.2006.02.003
State	Published - 1 Jun 2006

Keywords

Ab initio calculations
Implantation
Magnesium alloy
Transmission electron microscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

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10.1016/j.actamat.2006.02.003

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title = "Mechanism of phase transformations in Mg-based alloys subjected to plasma immersion ion implantation of Ag",

abstract = "The formation of a new phase of composition Mg54Al28Ag18 was observed as a result of plasma immersion ion implantation of Ag into the compound Mg17Al12. The new structure was characterized using a micro-beam diffraction technique. It was found that the implantation-induced phase transition occurs when the retained dose of the implanted ions is within the range of about 1015-1016 ions/cm2. The implanted system has been studied theoretically by means of density-functional electronic structure calculations and a new ab initio approach has been developed to evaluate the specific concentrations of the implanted ions that might cause the phase transition effect in the implanted matrix. The theoretically estimated values of concentrations are in good agreement with experimental observations.",

keywords = "Ab initio calculations, Implantation, Magnesium alloy, Transmission electron microscopy",

author = "Larisa Kutsenko and David Fuks and Arnold Kiv and Michael Talianker and Ljubov Burlaka and Othon Monteiro and Ian Brown",

note = "Funding Information: The authors acknowledge the support of this work by the Binational Scientific Foundation under Grant 2 000 122. L.K. and D.F. are grateful to Prof. A. Ruban for supplying the BGFM computer code and for helpful discussions.",

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language = "English",

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T1 - Mechanism of phase transformations in Mg-based alloys subjected to plasma immersion ion implantation of Ag

AU - Kutsenko, Larisa

AU - Fuks, David

AU - Kiv, Arnold

AU - Talianker, Michael

AU - Burlaka, Ljubov

AU - Monteiro, Othon

AU - Brown, Ian

N1 - Funding Information: The authors acknowledge the support of this work by the Binational Scientific Foundation under Grant 2 000 122. L.K. and D.F. are grateful to Prof. A. Ruban for supplying the BGFM computer code and for helpful discussions.

PY - 2006/6/1

Y1 - 2006/6/1

N2 - The formation of a new phase of composition Mg54Al28Ag18 was observed as a result of plasma immersion ion implantation of Ag into the compound Mg17Al12. The new structure was characterized using a micro-beam diffraction technique. It was found that the implantation-induced phase transition occurs when the retained dose of the implanted ions is within the range of about 1015-1016 ions/cm2. The implanted system has been studied theoretically by means of density-functional electronic structure calculations and a new ab initio approach has been developed to evaluate the specific concentrations of the implanted ions that might cause the phase transition effect in the implanted matrix. The theoretically estimated values of concentrations are in good agreement with experimental observations.

AB - The formation of a new phase of composition Mg54Al28Ag18 was observed as a result of plasma immersion ion implantation of Ag into the compound Mg17Al12. The new structure was characterized using a micro-beam diffraction technique. It was found that the implantation-induced phase transition occurs when the retained dose of the implanted ions is within the range of about 1015-1016 ions/cm2. The implanted system has been studied theoretically by means of density-functional electronic structure calculations and a new ab initio approach has been developed to evaluate the specific concentrations of the implanted ions that might cause the phase transition effect in the implanted matrix. The theoretically estimated values of concentrations are in good agreement with experimental observations.

KW - Ab initio calculations

KW - Implantation

KW - Magnesium alloy

KW - Transmission electron microscopy

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U2 - 10.1016/j.actamat.2006.02.003

DO - 10.1016/j.actamat.2006.02.003

M3 - Article

AN - SCOPUS:33646503906

SN - 1359-6454

VL - 54

SP - 2637

EP - 2643

JO - Acta Materialia

JF - Acta Materialia

IS - 10

ER -

Mechanism of phase transformations in Mg-based alloys subjected to plasma immersion ion implantation of Ag

Abstract

Keywords

ASJC Scopus subject areas

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