2 with including the misfit strain energy, and 0.029 J/m2 without including the misfit strain energy, respectively. These results are helpful in supporting the future phase-field simulations and in clarifying the phase transformation mechanisms in titanium."/>

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First-principles study of the α/ω interface in titanium
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School of Materials Science and Engineering,Central South University,Changsha,School of Materials Science and Engineering,Central South University,Changsha,School of Materials Science and Engineering,Central South University,Changsha,School of Materials Science and Engineering,Central South University,Changsha,School of Materials Science and Engineering,Central South University,Changsha

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    Abstract:

    Based on the experimental orientation relationship, first-principles density function theory calculations were performed to study the α/ω interface in titanium. With different surface termination and interface coordination types, a total of 24 possible atomistic interface models of the α{1-100}/ω{1-100} were constructed and calculated. Five interface structures were favored in energy and may co-present in titanium, and the average interface energy was predicted as 0.100 J/m2 with including the misfit strain energy, and 0.029 J/m2 without including the misfit strain energy, respectively. These results are helpful in supporting the future phase-field simulations and in clarifying the phase transformation mechanisms in titanium.

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[Lvqi Zhu, Weifeng Wan, Yong Jiang, Huiqun Liu, Danqing Yi. First-principles study of the α/ω interface in titanium[J]. Rare Metal Materials and Engineering,2018,47(10):3058~3062.]
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History
  • Received:January 03,2017
  • Revised:August 09,2018
  • Adopted:March 16,2017
  • Online: November 08,2018
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