The common slip systems in fcc and hcp crystals combine close-packed directions with close-packed planes: 〈11¯0〉{111} in fcc (and diamond cubic), 〈112¯0〉{0001} in hcp. The most common prismatic slip system in hcp is 〈112¯0〉{11¯01}. The slip direction in bcc crystals...
While propagation of dislocations in body centered cubic metals at low temperature is understood in terms of elementary steps on {110} planes, slip traces correspond often with other crystallographic or non-crystallographic planes. In the past, characterization of slip was limited to post-mortem elect...
Understanding of dislocation-interface interactions at the atomistic level could provide useful insights into the mechanisms behind slip transfer, a key information for higher length-scale formulations. A systematic study of screw dislocation impingement on both Fe/Al and Fe/Cu interfaces with Kurdjumov-...
These two FCC systems are selected based on the works of Chassagne et al.9 and Jin et al.12,13 as they have significantly different stable/unstable stacking/twin fault energies that affect the slip transfer reactions; moreover, they have planar dislocation cores,34 which can be well ...
In this review article, we present and discuss recent mesoscale modeling studies of slip transmission of dislocations through biphase interfaces. Specific focus is given to fcc/fcc material systems. We first briefly review experimental, atomistic, and continuum-scale work that has helped to shape our...
and their relative contributions to kinematics are not explicitly distinguished in the present application. Phase changes among, e.g., face-centered-cubic (FCC), body-centered-cubic (BCC), body-centered-tetragonal (BCT), and hexagonal (HCP) structures are admitted, with corresponding deviatoric and...
Torner, J. Alcala, Unraveling deformation mechanisms around FCC and BCC nanocontacts through slip trace and pileup topography ana- lyses, Acta Mater. 125 (2017) 431-441.J. Varillas, J. Ocenasek, J. Torner, J. Alcala, Unraveling deformation mechanisms around FCC and BCC nanocontacts through...
In subject area: Engineering Soft grains are those grains in which basal slip having the lowest CRSS value is activated, while the intermediate grains are those for which the prismatic and / or the pyramidal systems are activated, and other slips and twinning remain inactive. ...
Moreover, due to the non-close packed nature of the BCC lattice, there is more than one candidate slip family. As a consequence, plastic deformation typically results in wavy and curved slip traces, which make the identification of the exact slip systems challenging [1,2]. The identification...
Excellent plastic stability in Ti55531 pillars Micron- to nanoscale acicular α precipitates usually play an important role in strengthening β-titanium alloys. As a hexagonal closed-packed (hcp) structure, the frequent slip systems in the α phase include {10\(\bar{1}\)0} prismatic slip, {00...