Selective variant growth of D0 22 precipitates in Ni-V alloys

H. Zapolsky; X. Sauvage; R. Patte; S. Ferry; D. Blavette; L. Q. Chen

Selective variant growth of D0 ₂₂ precipitates in Ni-V alloys

H. Zapolsky, X. Sauvage, R. Patte, S. Ferry, D. Blavette, L. Q. Chen

Research output: Contribution to conference › Paper › peer-review

Abstract

The mechanism of formation of the monovariant twin structure in Ni-V alloys during the transformation path from the disordered f.c.c. Al parent phase to the two-phase Al+DO ₂₂ region has been studied. A 2D model of the cubic-to-tetragonal transformation, based on the Onsager kinetic diffusional equation, is proposed. Our computer simulations demonstrate that strain-induced interactions between the coherent DO ₂₂ precipitates lead to the coarsening of a single orientational variant out of three originally precipitated in the material. These simulation results are in good agreement with TEM observations on a Ni-19.5at.%V alloy.

Original language	English (US)
Pages	783-788
Number of pages	6
State	Published - 2005
Event	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005 - Phoenix, AZ, United States Duration: May 29 2005 → Jun 3 2005

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Other	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005
Country/Territory	United States
City	Phoenix, AZ
Period	5/29/05 → 6/3/05

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

@conference{492b6865fc5544e298902de966bde0df,

title = "Selective variant growth of D0 22 precipitates in Ni-V alloys",

abstract = "The mechanism of formation of the monovariant twin structure in Ni-V alloys during the transformation path from the disordered f.c.c. Al parent phase to the two-phase Al+DO 22 region has been studied. A 2D model of the cubic-to-tetragonal transformation, based on the Onsager kinetic diffusional equation, is proposed. Our computer simulations demonstrate that strain-induced interactions between the coherent DO 22 precipitates lead to the coarsening of a single orientational variant out of three originally precipitated in the material. These simulation results are in good agreement with TEM observations on a Ni-19.5at.%V alloy.",

author = "H. Zapolsky and X. Sauvage and R. Patte and S. Ferry and D. Blavette and Chen, {L. Q.}",

year = "2005",

language = "English (US)",

pages = "783--788",

note = "International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005 ; Conference date: 29-05-2005 Through 03-06-2005",

}

TY - CONF

T1 - Selective variant growth of D0 22 precipitates in Ni-V alloys

AU - Zapolsky, H.

AU - Sauvage, X.

AU - Patte, R.

AU - Ferry, S.

AU - Blavette, D.

AU - Chen, L. Q.

PY - 2005

Y1 - 2005

N2 - The mechanism of formation of the monovariant twin structure in Ni-V alloys during the transformation path from the disordered f.c.c. Al parent phase to the two-phase Al+DO 22 region has been studied. A 2D model of the cubic-to-tetragonal transformation, based on the Onsager kinetic diffusional equation, is proposed. Our computer simulations demonstrate that strain-induced interactions between the coherent DO 22 precipitates lead to the coarsening of a single orientational variant out of three originally precipitated in the material. These simulation results are in good agreement with TEM observations on a Ni-19.5at.%V alloy.

AB - The mechanism of formation of the monovariant twin structure in Ni-V alloys during the transformation path from the disordered f.c.c. Al parent phase to the two-phase Al+DO 22 region has been studied. A 2D model of the cubic-to-tetragonal transformation, based on the Onsager kinetic diffusional equation, is proposed. Our computer simulations demonstrate that strain-induced interactions between the coherent DO 22 precipitates lead to the coarsening of a single orientational variant out of three originally precipitated in the material. These simulation results are in good agreement with TEM observations on a Ni-19.5at.%V alloy.

UR - http://www.scopus.com/inward/record.url?scp=33645232731&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645232731&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33645232731

SP - 783

EP - 788

T2 - International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005

Y2 - 29 May 2005 through 3 June 2005

ER -

Selective variant growth of D0 ₂₂ precipitates in Ni-V alloys

Abstract

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