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Unraveling deformation mechanisms around FCC and BCC nanocontacts through slip trace and pileup topography analyses

Autor
Varillas, J.; Ocenásek, J.; Jordi Torner; Alcala, J.
Tipus d'activitat
Article en revista
Revista
Acta materialia
Data de publicació
2017-02-15
Volum
125
Pàgina inicial
431
Pàgina final
441
DOI
https://doi.org/10.1016/j.actamat.2016.11.067 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/100663 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S135964541630934X Obrir en finestra nova
Resum
Nanocontact loadings offer the potential to investigate crystal plasticity from surface slip trace emissions and distinct pileup patterns where individual atomic terraces arrange into hillocks and symmetric rosettes. Our MD simulations in FCC Cu and Al nanocontacts show development of specific dislocation interception, cross-slip and twin annihilation mechanisms producing traces along characteristic <011> and <112> directions. Although planar slip is stabilized through subsurface dislocation int...
Citació
Varillas, J., Ocenásek, J., Jordi Torner, Alcala, J. Unraveling deformation mechanisms around FCC and BCC nanocontacts through slip trace and pileup topography analyses. "Acta materialia", 15 Febrer 2017, vol. 125, p. 431-441.
Paraules clau
Nanocontacts, Slip Traces, Indentation Pileup, Indentation Rosettes, Nanotwins
Grup de recerca
InSup - Grup de Recerca en Interacció de Superfícies en Bioenginyeria i Ciència dels Materials

Participants