56 citations · 83 across the 9 of their papers we have counts for
9 papers
Defect dependent dynamic nanoindentation hardness of copper up to 25 000 s-1
Hendrik Holz, Lalith Kumar Bhaskar, Tobias Brink +4
Metals exhibit an upturn in strength at strain rates of approximately 1000 s-1 - 3000 s-1, governed by rapid dislocation multiplication, interactions and storage. This phenomenon i…
Triple Junctions as Dislocation-Like Defects: The Role of Grain Boundary Crystallography Revealed by Experiment and Atomistic Simulation
Tobias Brink, Saba Saood, Peter Schweizer +2
Grain boundary networks and their evolution are strongly influenced by triple junctions. The defect nature of these line defects significantly affects the properties of the network…
Role of defects in the thermodynamic stability of grain boundary phases at asymmetric tilt boundaries in copper
Swetha Pemma, Lena Langenohl, Saba Saood +5
Grain boundaries can exist as different grain boundary phases (also called complexions) with individual atomic structures. The thermodynamics of these defect phases in high-angle g…
Faceting transition in aluminum as a grain boundary phase transition
Yoonji Choi, Tobias Brink
Grain boundaries facet due to anisotropic grain boundary energies: While the faceted boundary has a larger area than the corresponding straight boundary, a significantly lower ener…
High Strain Rate Compressive Deformation Behavior of Nickel Microparticles
Bárbara Bellón, Lalith Kumar Bhaskar, Tobias Brink +5
Understanding the mechanical properties of metals at extreme conditions is essential for the advancement of miniaturized technologies. As dimensions decrease, materials will experi…
Topological grain boundary segregation transitions
Vivek Devulapalli, Enze Chen, Tobias Brink +2
Engineering structure of grain boundaries (GBs) by solute segregation is a promising strategy to tailor the properties of polycrystalline materials. Theoretically it has been sugge…
Effect of the atomic structure of complexions on the active disconnection mode during shear-coupled grain boundary motion
Swetha Pemma, Rebecca Janisch, Gerhard Dehm +1
The migration of grain boundaries leads to grain growth in polycrystals and is one mechanism of grain-boundary-mediated plasticity, especially in nanocrystalline metals. This migra…
Stable nanofacets in [111] tilt grain boundaries of face-centered cubic metals
Tobias Brink, Lena Langenohl, Swetha Pemma +2
Grain boundaries can dissociate into facets if that reduces their excess energy. This, however, introduces line defects at the facet junctions, which present a driving force to gro…
Effect of the atomic structure of complexions on the active disconnection mode during shear-coupled grain boundary motion
Swetha Pemma, Rebecca Janisch, Gerhard Dehm +1
The migration of grain boundaries leads to grain growth in polycrystals and is one mechanism of grain-boundary-mediated plasticity, especially in nanocrystalline metals. This migra…