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 conferencePaper

1 Scopus citations

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 languageEnglish (US)
Pages783-788
Number of pages6
StatePublished - Dec 1 2005
EventInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005 - Phoenix, AZ, United States
Duration: May 29 2005Jun 3 2005

Other

OtherInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005
CountryUnited States
CityPhoenix, AZ
Period5/29/056/3/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Zapolsky, H., Sauvage, X., Patte, R., Ferry, S., Blavette, D., & Chen, L. Q. (2005). Selective variant growth of D0 22 precipitates in Ni-V alloys. 783-788. Paper presented at International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Phoenix, AZ, United States.