Zobrazeno 1 - 10
of 21
pro vyhledávání: '"I. J. Beyerlein"'
Multi-modal Dataset of a Polycrystalline Metallic Material: 3D Microstructure and Deformation Fields
Autor:
J. C. Stinville, J. M. Hestroffer, M. A. Charpagne, A. T. Polonsky, M. P. Echlin, C. J. Torbet, V. Valle, K. E. Nygren, M. P. Miller, O. Klaas, A. Loghin, I. J. Beyerlein, T. M. Pollock
Publikováno v:
Scientific Data, Vol 9, Iss 1, Pp 1-16 (2022)
Measurement(s) 3D grain structure and grain orientations • Surface deformation fields Technology Type(s) Electron backscatter diffraction (EBSD) • Scanning electron microscope (SEM) • TriBeam microscope • high resolution digital image correla
Externí odkaz:
https://doaj.org/article/0c8d6148136f41658c5fb57792bae204
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
Twin transmission across grain boundaries has important influence on deformation and fracture in hexagonal close-packed metals. Here, experimental and computational statistical analyses show that whether twins cross grain boundaries depends not only
Externí odkaz:
https://doaj.org/article/3df0b954fd2b4b61aa322962febc39e0
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Double twins are thought to lead to premature failure of magnesium alloys. Here, the authors show that a magnesium-lithium alloy achieves the same compression failure strains with double twins as without, potentially generating strengthening through
Externí odkaz:
https://doaj.org/article/00e7e0fbdf5b47a888296937e01913f1
Publikováno v:
APL Materials, Vol 4, Iss 11, Pp 111101-111101-7 (2016)
Using atomistic simulations, several semi-coherent cube-on-cube bimetal interfaces are comparatively investigated to unravel the combined effect of the character of misfit dislocations, the stacking fault energy difference between bimetal pairs, and
Externí odkaz:
https://doaj.org/article/8cbb5256f68e471393f4b8bb08a503a7
Autor:
M. A. Monclús, S. J. Zheng, J. R. Mayeur, I. J. Beyerlein, N. A. Mara, T. Polcar, J. Llorca, J. M. Molina-Aldareguía
Publikováno v:
APL Materials, Vol 1, Iss 5, Pp 052103-052103-7 (2013)
High-temperature nanoindentation was used to reveal nano-layer size effects on the hardness of two-dimensional metallic nanocomposites. We report the existence of a critical layer thickness at which strength achieves optimal thermal stability. Transm
Externí odkaz:
https://doaj.org/article/9c11ef9e842c439d9dbf4ec9d142a420
Autor:
A. Hunter, I. J. Beyerlein
Publikováno v:
APL Materials, Vol 1, Iss 3, Pp 032109-032109 (2013)
Using an atomistic-phase field dislocation dynamics model, we isolate and investigate grain size and stress effects on the stacking fault width created by partial dislocation emission from a boundary. We show that the nucleation stress for a Shockley
Externí odkaz:
https://doaj.org/article/11c8e1cab2dd471da08b1821bab65245
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 1249:012005
Recent experimental studies have reported that thick interfaces in nanolaminates can lead to greater strengths than conventionally sharp interfaces without sacrificing deformability. Using a multi-phase phase-field dislocation dynamics model, disloca
Publikováno v:
Physical Review B. 84
We present simulations of the dissociation of perfect dislocations into extended partial dislocations in aluminum, palladium, and nickel using a phase field dislocation dynamics (PFDD) theory that incorporates the $\ensuremath{\gamma}$ surface. As ex
Autor:
I. J. Beyerlein
Publikováno v:
Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences; Sep2010, Vol. 466 Issue 2121, p2517-2544, 28p