Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Trinkle D"'
Autor:
Ghazisaeidi, M., Trinkle, D. R.
Oxygen greatly affects the mechanical properties of titanium. In addition, dislocations and twin boundaries influence the plastics deformation of hcp metals. As part of a systematic study of defects interactions in Ti, we investigate the interactions
Externí odkaz:
http://arxiv.org/abs/1403.2806
Autor:
Ghazisaeidi, M., Trinkle, D. R.
Flexible boundary condition methods couple an isolated defect to a harmonically responding medium through the bulk lattice Green's function; in the case of an interface, interfacial lattice Green's functions. We present a method to compute the lattic
Externí odkaz:
http://arxiv.org/abs/1005.4339
Autor:
Ghazisaeidi, M., Trinkle, D. R.
Publikováno v:
Phys. Rev. E 79, 037701 (2009)
Flexible boundary condition methods couple an isolated defect to bulk through the bulk lattice Green's function. The inversion of the force-constant matrix for the lattice Green's function requires Fourier techniques to project out the singular subsp
Externí odkaz:
http://arxiv.org/abs/0810.5709
A description of the martensitic transformations between the $\alpha$, $\beta$ and $\omega$ phases of titanium that includes nucleation and growth requires an accurate classical potential. Optimization of the parameters of a modified embedded atom po
Externí odkaz:
http://arxiv.org/abs/0706.1764
Autor:
Trinkle, D. R.
Publikováno v:
Scripta Mater. 56, 273-276 (2007)
First-principles electronic-structure computes the lattice and elastic constants of single-crystal TiB and NbB and changes with Nb, Ti, Al, and V solutes. The data is built into an interpolation formula for lattice and elastic constants of the quarte
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607398
Publikováno v:
Phys. Rev. B 73, 094123 (2006)
For a previously published study of the titanium hcp (alpha) to omega (omega) transformation, a tight-binding model was developed for titanium that accurately reproduces the structural energies and electron eigenvalues from all-electron density-funct
Externí odkaz:
http://arxiv.org/abs/cond-mat/0502636
Publikováno v:
Phys. Rev. B 72 014105 (2005)
Structural phase transitions are governed by the underlying atomic transformation mechanism; martensitic transformations can be separated into strain and shuffle components. A systematic pathway generation and sorting algorithm is presented and appli
Externí odkaz:
http://arxiv.org/abs/cond-mat/0501271
Publikováno v:
Nature Materials 4, 129 (2005)
The onset and kinetics of martensitic transformations are controlled by impurities trapped during the transformation. For the alpha to omega transformation in Ti, ab initio methods yield the changes in both the relative stability of and energy barrie
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309162
Autor:
Trinkle, D. R., Hennig, R. G., Srinivasan, S. G., Hatch, D. M., Jones, M. D., Stokes, H. T., Albers, R. C., Wilkins, J. W.
Publikováno v:
Phys. Rev. Lett. 91, 025701 (2003)
We propose a new direct mechanism for the pressure driven alpha to omega martensitic transformation in pure titanium. A systematic algorithm enumerates all possible mechanisms whose energy barriers are evaluated. A new, homogeneous mechanism emerges
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301084
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